ROADBOOK RUNNERS 2020 SUMMARY

Measures - COVID-19 The Show Must Go On ! 7 4 Program 9 Mandatory equipment Organization committee Security 6 12 13 MXTREME 14

MXSKY / MXFAMILY 22 Practical informations 30 Services & General informations Thank you 33

2

THE SHOW MUST GO ON !

Dear trail runners, dear accompanying persons, At the start of the 3 races that we managed to maintain, no doubt that our emotion will be even more important than usual. But we are convinced Queen’s iconic title « The Show Must Go On » associated with our that the runners will give it back to us a hundredfold on the marvellous MXTREME has never been more appropriate for our event. Over the last trails of the Alps. What if we were already looking forward to a fifth few months, we have gone through all the emotions, from the doubts «normal» edition in July next year? raised by the widespread cancellations of other races to the positive signs from our authorities. The committee is solely responsible for its Without contradicting the competitive spirit inherent in a race, we must choices, and we decided to continue despite the obstacles and some ask you to keep your distance, but nevertheless to swallow the one we anxieties. We wanted to convey our positive attitude, and show that even have prepared for you with spirit and endurance. We have taken many with adjustments, popular sport could regain its rights. precautions to protect you and us, as well as your accompanying persons and spectators, and we ask you all to respect the instructions that our In the previous editions of the MXTREME, many people only discovered volunteers will give you in this regard. the fabulous Muveran massif at night. With the return of this iconic race, we wanted to change that. The Commune of Bex responded enthusiastically Have a great race and enjoy the essential: freedom and health! to our proposal to give the start of this 112km crossing of the Vaud Alps race for 8,500 metres of positive elevation. We are convinced that we have found a good compromise between distance, positive elevation and scenery, especially considering our position in the trail’s usual schedule.

The MYSKY and the MXFAMILY are still wonderful panoramic races on the Lake Leman crests with this pinch of music which made the fame of our event.

4

ORGANIZATION COMMITTEE

This ambitious project is above all the result extraordinary volunteers. of teamwork. Diego Pazos and Cédric Agassis are two friends originally from Lausanne, also Together, they have created a recipe for founders of the association «Dénivelé positif» this unique event: a touch of madness, a and great lovers of mountains and «extreme» hefty dose of organization and a pinch of efforts. They have combined their experience «Rock’n’roll attitude», without ever forgetting and know-how to create an exceptional event the seriousness that makes this beautiful in the Swiss trail landscape. adventure a real success.

Voluntary and creative, this energetic duo can count on a team of enthusiasts and

6 MEASURES / COVID-19

Sports... and health are the key words of the weekend. We ask you to Departure procedure adopt a sporty and responsible attitude at all times. Wearing a mask is mandatory in the departure zone until the start.

Masks The speaker will tell you when you can get rid of your mask, either by It is mandatory to have 3 disposable masks or 1 FFP. Wearing the mask putting it in a net provided for this purpose, or by putting it in your bag (only is mandatory in 2 areas: for FFP masks). In this case, the mask must be hermetically protected. • Bibs distribution zone • Departure zone Physical distance and behaviour … and in all types of public transport or organization transport (MXTREME The minimum distance of 1.5m must at all times be maintained between shuttle). each person (volunteer, runner, spectator, ...).

You are free to wear the type of mask of your choice (surgical or FFP). In In the departure zones, volunteers with ORANGE vests may ask runners any case, we recommend that you carry a spare mask in your running bag. to move away from each other and enforce the distance.

Without a mask: no race bib, no shuttle, no start! We also ask you to keep a certain distance between runners and to avoid spitting if there are runners just in front or behind you. In case you forget, masks will be sold at the price of CHF 2.- each in and Bex if needed.

Note: these measures are also recommended by the ITRA.

7 MEASURES / COVID-19

During the races runners. Some technical passages require the use of chains (1 passage on the MXSKY / MXFAMILY, 3 passages on the MXTREME). Volunteers will serve drinks in a disposable cup and food directly to the A volunteer will be nearby to provide hydroalcoholic gel. The runner will runners in a disposable french fries tray. spread the gel in the palms, on and between the fingers before grabbing the chains, rungs or ropes. For the drinks, the runner will open their bottle and hand it to the volunteer who will fill it with water, syrup or isotonic drink and the runner will close If the runner knows that he/she is allergic to the gel, he/she will need to it. Once served, the runner will eat in the area provided for this purpose, take waterproof (latex-style) gloves with him/her and place them in the next to the refreshment station. He shall continue to keep his distance presence of the volunteer, on which the volunteer will apply the gel. The from the other runners. gloves must be kept on for the duration of the race. Bins will be available at the exit of the refreshment area for the disposal of trays and cups. Composition of the gel: fruit alcohol 77% vol, ethanol 96% vol, glycerine, hydrogen peroxide 3%, distilled water, mint tea. Note: our organisation is as much as possible thought out in an ethical, local and ecological way. This year, in view of the current situation, some At the refreshment station exceptions had to be made. The runner doesn’t use anything by himself. Everything goes through the volunteer. Accompanying persons The runner shall be entitled to an accompanying adult with children in a Hydroalcoholic gel supplied by our organization must be applied to the neutral zone located just after the refreshment station. An «Accompanying hands at the entrance of each refreshment station. A volunteer with an person» badge must be taken during the race bib distribution for tracking ORANGE vest will direct the runner to a free table. In case of waiting, the and safery purpose. Accompanying or pacing a runner during all or part runner will pay attention to the physical distance of 1.5m with the other of the race is strictly forbidden. 8 PROGRAM

~1pm FRIDAY SATURDAY First finishers 24.07 25.07 MXSKY / MXFAMILY 6:30pm Podium MXSKY / MXFAMILY MONTREUX BEX - BIVOUAC PLACE DU MARCHÉ ~6:30pm 2am - 3:30am First finishers 4pm - 9pm Race bibs distribution MXTREME Trail Village MXTREME 4pm - 9pm Start MXTREME Race bibs distribution 4am: wave «green» SUNDAY MXSKY / MXFAMILY 4:10am: wave «red» 26.07 MONTREUX 11:30am BEX - BIVOUAC PLACE DU MARCHÉ Podium MXTREME 4pm - 8:30pm ~2pm Race bibs distribution Race bibs distribution Last finishers MXTREME MXFAMILY MXTREME 8:30am - 9:45am 6pm Briefing MXTREME Race bibs distribution MXSKY 7pm 8:30am - 9:45am: wave «green» Pasta Party 9:15am - 10:30am: wave «red» 9:30am - 10:45am: wave «blue» 9:30pm Good night Start MXFAMILY 10:15am Start MXSKY 10:30am: wave «green» 10:50am: wave «red» 11:10am: wave «blue» 9 OFFREZ-VOUS TROIS NUITS POUR LE PRIX DE DEUX ! Et prenez le temps de vivre la dolce vita à la mode de Montreux Riviera.

www.montreuxriviera.com/3-pour-2 FREE BELT PRO TAKE EVERYTHING YOU NEED

PICK POCKETS Properly structured for better organization,they are easy to reach and have been designed to prevent any bouncing. They also prevent unnecessary twisting and help you conserve energy to stay focused on your stride.

RUN

POLES LOOP The poles can be carried easily FREE without bouncing and can be attached and removed extremely quickly. ULTRALIGHT ZERO BOUNCING FULL CAPACITY

www.compressport.com MANDATORY EQUIPMENT

Sticks are allowed on all races.

3 disposable masks or 1 FFP The equipment control may take place at start and finish. Race

Supply of water of 1 litre minimum officials will also be authorised to check your equipment at any stage on the race. Supply of water of 0,5 litre minimum

Waterproof jacket with hood Depending on the weather conditions, the organiser will notify MXTREME Torche with spare cells/batteries runners concerning equipment changes in the days preceding Spare Torche the race or during the race briefing. Special attention will be

Cup paid if the recommended equipment becomes mandatory or if

MXSKY / MXFAMILY the quantities of water supply are adapted. Survival blanket (2,20 x 1.40m)

Whistle

Self adhesive elasticated bandage which can serve as a bandage or strapping (minimum 80cm x 3cm)

Food reserve

Long-legged trousers or race leggings *

Working mobile/cell phone. Keep the phone on.

A warm second layer top with long sleeves

Gloves

Spare T-shirt

Cap or bandana

Sunglasses

Sun cream

* can be replaced by a combination of legging and socks so that the legs are completely covered. . Mandatory Recommended

12 SECURITY

For your own security, we recommend you to install the «EchoSOS» application If you need help: click on the «Montreux Trail Festival» logo, a call will be made to available on the AppStore or Google Play. the Race HQ and your position will be automatically communicated. However, the number of the Race HQ remains accessible at all times: +41 21 552 28 08. Configuration: it is necessary to allow localization and notifications when the application is open. You don’t have to do anything else. On race day, when you are If there is a security need, we may contact you via an EchoSOS alert. on the track, the application will automatically detect your position once opened. You will then see the Montreux Trail Festival logo. Note: this application is not used to track runners, and your position is only known in case of an emergency call.

13 MXTREME Parking & Shuttles

SHUTTLE MONTREUX - BEX to the Parking de la Saussaz or to Bex. The shuttle bus is reserved for runners who have announced themselves via our survey sent on July Public transport will also take you to the Parking 2nd. Given the current sanitary conditions, only de la Saussaz from the Place du Marché (except registered runners will be able to take the shuttle between 10.54 pm and 6.54 am), for CHF 3.-. bus. * MONTREUX - FREE PARKING Note: Wearing a mask is compulsory on shuttle The parking is only accessible free of charge to buses, as it is on all public transport in runners who have announced themselves via our (Federal Council measure). survey sent on July 2nd. *

SCHEDULES Parking de la Saussaz, Route de la Saussaz 7 Friday, direction Bex: 1816 Chailly-sur-Montreux • 5pm - Parking de la Saussaz Acces: A9 motorway exit «Montreux», follow • 5:15pm - Place du Marché, Montreux «Montreux» then at the roundabout, take the 1st Saturday, direction Bex: exit: Route de la Saussaz for about 400 meters. • 2:15am - Parking de la Saussaz • 2:30am - Place du Marché, Montreux BEX - FREE PARKING Chemin de Vauvrise, 1880 Bex RETURN SCHEDULES A shuttle bus running every 2 hours from 11pm on Saturday evening will be waiting for the runners at the Place du Marché, Montreux, to take them back 14 15 MXTREME Bivouac map and departure by waves

16 17 MXTREME

25-26 JUILLET 2020 Rochers de Naye La Perche Col des Perris Blancs Col des Pauvres Col des La Vare Essets Col des La Chaux Ronde Grand Chamossaire Tour de Famelon Berneuse Sex des Nombrieux Malatraix

2’600 Luan 2’200 Tourche Solalex Le Sépey Joux-Vert Pont de Nant Pont de Haut-de-Caux Col de Chaude Col de 1’800 la Croix Col de

1’400 place du Marché ,

1’000

600 BEX MONTREUX

0 10 20 30 40 50 60 70 80 90 100 110 MXTREME 5pts

’500 112 Km 8 m+

18 MXTREME Finish Haut-de-Caux Rochers-de-Naye Col deChaude Malatraix Joux-Verte Luan Berneuse Famelon Le Sépey(LifeBase) Chamossaire Col delaCroix Chaux Ronde Solalex Col desEssets Pont-de-Nant Perris Blancs Cabane delaTourche Start Passage 1566 2040 2096 1159 1965 1294 1954 2065 1465 1921 2186 1251 2522 1754 1279 2018 962 434 376 Alt. 110.1 102.6 Dist. 94.2 89.2 68.6 36.9 85.3 61.2 42.6 21.4 11.9 78.4 73.2 31.7 10.3 27.7 52 97 0 Accumulation 5666 5963 2306 6433 7099 4667 4516 7839 3131 7665 7234 3131 2151 6018 1801 3979 7793 3775 D+ 0 5586 2098 5612 4146 4140 2856 2659 2144 7068 1491 6132 1547 5157 4357 7897 6102 50 63 D- 0 Dist. 10.3 5.6 3.9 6.9 5.2 4.5 9.2 9.4 5.6 5.2 3.9 9.4 6.3 1.6 2.7 .4 7. .3 7. 5 0 Intermediary 1801 666 999 644 204 128 350 431 135 415 151 155 825 297 537 D+ 46 55 0 0 1284 1428 490 936 800 829 429 211 515 551 197 30 46 26 56 50 13 D- 6 0 Finisher Light +asmalldose ofcourage Time barrier Full +Risotto Light +Kiwi - Full +Bretzel|Time barrier - - Full + Pasta andcakes|Time barrier Full +Pasta - Full +Alpinecheese - Full + Polenta TerrasuisseFull +Polenta |Time barrier - Light + Saucisson vaudois Light +Saucisson - Light +Pear andspeltturnovers Start Type barrier 30h30 Time 34h 25h 20h 10h – – – – – – – – – – – – – – 1997 |Master 1 Espoirs will berewardedattheendofrace: The followingcategoriesofmenandwomen PODIUM showing yourracebib. the Rochers deNayeortheHautsCauxby freeofcharge fromto Montreuxbytrain(MOB) Youstation. havethepossibility tocomeback please proceed to the nearest refreshment Unless youareinjuredandunabletomove, WITHDRAWAL /REPATRIATION Scratch to19701961 |Master3 Light: water, coca,Isostar, chocolate, fruits, cheese, ... Full: light+ fullmeal : 1998 andbefore|Seniors : 1998 : 1971 to 1980 |Master 2 : 1971 to1980 : 1960 andbefore| : 1960 19 : 1981 to: 1981 : Ensemble pour accompagner vos rêves

Votre fournisseur de gaz naturel et d’énergies renouvelables

energiapro.ch

une société du groupe HOLDIGAZ. FSV 1801_Annonces_A5H.qxp_Mise en page 1 18.03.18 16:15 Page1 MXSKY / MXFAMILY Parkings

MONTREUX - FREE PARKING PUBLIC TRANSPORT Parking “Place du Marché / Forum”, Grand’ Rue, The train station is a 5-minute walk away. 1820 Montreux The parking is located under the Market Square, We remind you that if you stay in a hotel, a holiday departure / arrival area of the MXSKY / MXFAMILY. home, a Bed & Breakfast or a campsite during your visit to the region, the Montreux Riviera Card will be Attention: from Saturday 8am onwards, in given to you on your arrival and you will benefit from order to benefit from the free parking, runners must free transport throughout the region. present their ticket and race bib at the «info desk», See page 31. under the cover of the Market Square, where they will be given a free parking ticket.

Places are limited to the capacity of the parking. In case of too much traffic you will be redirected to an alternative parking. Please use carpooling as much as possible.

Other (paying) parkings are available, please visit https://www.cartoriviera.ch/parkings/

22 23 isostar.ch MXSKY / MXFAMILY Departure by waves Mon énergie pour le Montreux Trail Festival.

MXFAMILY Statue A Diego Pazos Molino Ambassadeur Isostar pont Ultra Trail Runner Nouveau B Palais ✓ Sans colorants Oriental ✓ Sans conservateurs ✓ C Jardin Arômes naturels du Casino

Isostar 24 Hydrate & Perform

Iso_Inserat_Roadbook_MontreuxTrail_Pazo_A5_quer_fr.indd 1 10.07.19 15:19 isostar.ch

Mon énergie pour le Montreux Trail Festival.

Diego Pazos Ambassadeur Isostar Ultra Trail Runner Nouveau ✓ Sans colorants ✓ Sans conservateurs ✓ Arômes naturels

Isostar Hydrate & Perform

Iso_Inserat_Roadbook_MontreuxTrail_Pazo_A5_quer_fr.indd 1 10.07.19 15:19 MXSKY / MXFAMILY

25-26 JUILLET 2020 Le Cubly Sonloup Le Molard Soladier Col de Cap au Moine Dent de Jaman Bonaudon Col de La Perche du Chauderon Gorges

1’800 Col de La Cergniaulaz Haut-de-Caux

1’400 , place du Marché , , place du Marché , 1’000 MONTREUX 600 MONTREUX

0 5 10 15 20 25 30 MXSKY 2pts

’100 30 Km 2 m+

26 is notthe responsibility oftheorganiser oftherace. hand withthe adult. There ofthetransport isnoorganised transportofthekidbetween differentpointsofthetrail. The organisation reaching onthe waterfront.The kidwillhave togotherelaypointlocated ontheMontreuxwaterfront toenduptheracehandin willbesentwhentherunner leaves the Chauderon Gorges, 5minutes before atHaut de Caux.AsecondSMS refreshment station willbesent totheresponsibleadultwhenrunnerpassesthrough thelast ASMS of anadult(outsidetheorganisation). The kidcompletes1kmbeforehandingoverabatontothe adultrunner, off.The kidisthenunder theresponsibility whocanthentake MXFAMILY

MXSKY / MXFAMILY Finish -Montreux Gorges duChauderon Haut-de-Caux Bonaudon Col deJaman Cap auxMoines Cergniaulaz Cubly Start -Montreux Start Passage 1156 1206 1520 1828 1283 1748 665 376 376 Alt. Dist. 26,3 22,5 18,3 15,9 13,3 5,3 ,9 7, 30 0 Accumulation 2068 2204 2169 2183 1716 1040 1707 834 D+ 0 PODIUM MXFAMILY: onlythe generalmen and womenwill berewarded. 1389 1894 2203 696 133 257 572 D- 4 0 Dist. 3,3 3,2 1,2 2,6 1,3 5,3 5,3 3,7 0 Intermediary 834 834 113 247 D+ 21 14 4 9 0 309 640 505 121 315 D- 0 4 4 0 Finisher Come on,almostdone Light Time barrier Light - Light - Start Type barrier Time 6h30 9h00 – – – – – – – PODIUM showing yourracebib. ortheHautsdeCauxbyfrom JamanStation freeofchargeto Montreuxbytrain(MOB) Youstation. havethepossibility tocomeback please proceed to the nearest refreshment Unless youareinjuredandunabletomove, WITHDRAWAL /REPATRIATION 1997 |Master 1 Espoirs will berewardedattheendofrace: The followingcategoriesofmenandwomen 1961 to19701961 |Master3 Scratch fruits, cheese, ... Light: water, coca,Isostar, chocolate, : 1998 andbefore|Seniors : 1998 : 1971 to 1980 |Master 2 : 1971 to1980 : 1960 andbefore| : 1960 : 1981 to: 1981 27 : Félicitations Pour refaire le plein d’énergie Migros Montreux a le plaisir de vous accueillir dans son supermarché à deux pas de l’arrivée.

Place du Marché 6 Lundi - Vendredi 08h00 - 20h00 1820 Montreux Samedi 08h00 - 19h00 058 573 66 00 Dimanche 10h00 - 18h00 MONTREUX

Spons_Ann-A5-Montreux-2019.indd 1 01.07.2019 09:56:40

PRACTICAL INFORMATIONS Race bibs

TIME SLOTS

4pm - 9pm 4pm - 9pm 4pm - 9pm 4pm - 9pm 4pm - 9pm

24.07 BEX - BIVOUAC MONTREUX MONTREUX MONTREUX MONTREUX Friday Friday

2am - 3:30am 8:30am - 9:45am 9:15am - 10:30am 9:30am - 10:40am 8:30am - 9:45am

25.07 BEX - BIVOUAC MONTREUX MONTREUX MONTREUX MONTREUX Saturday MXSKY wave «green» MXTREME MXSKY wave «red» MXSKY wave «blue» MXFAMILY

The bib is to be collected individually by In case of loss of the chip, the latter must be List by waves: each runner, mentioning his number to the repaid. Except in the case of refusal to comply with Due to COVID-19 which limits wave size and volunteers. The list of runners per wave is a decision taken by a race official, the race bib is individual tracking, no changes can be made. Thank available on our website. never withdrawn. In the case of abandonment, the you for your understanding. bib is deactivated. Find your departure wave on our website If you have the possibility, we recommend that you www.montreux-trail.ch or: pick up your bib on Friday afternoon. Reminder: wearing a mask is obligatory to access the bibs distribution zione. MXTREME MXSKY MXFAMILY After your race bib distribution, or when you are ready to go to the start line, please head towards the starting SAS corresponding to your colour (dot on your bib) by following the instructions of our volunteers in the ORANGE vests. 30 Accomodation Stands

It’s the last moment if you don’t have accommodation If you have reserved the dormitory, please bring Some partner stands will be present on the Market yet. There are many choices in the Montreux area: your own sleeping bag. Square in Montreux. www.montreuxriviera.com RIVIERA CARD However, don’t forget to bring all your equipment. The La Tour de Peilz and Villeneuve campsites are If you stay in a hotel, a holiday home, a Bed & We cannot guarantee that we will have the item you about ten minutes from Montreux, and parking areas Breakfast or a campsite during your visit to the are missing. for camper vans are available at the Plage du Pierrier region, the Montreux Riviera Card will be given to (Clarens) and Villeneuve. you on your arrival and will allow you to benefit SCHEDULES from museums, leisure parks, boats, transport, ... Friday July 24th from 4pm to 9pm For the MXTREME, we sent you a survey on July 2nd everything is FREE until 31.12.2020. Saturday 25 July from 8:30am to 10pm to find out your needs in terms of accommodation in Bex (dormitory, tent or camper van). Given the More details: ANIMATIONS current sanitary conditions, only those registered will The current situation does not allow us to organize a be able to be accommodated and will be able to take music festival as in the last editions. However, some the shuttle. If you wish to benefit from this, please bands will be spread out on the routes in order to contact us urgently ([email protected]). surprise you and give your some courage.

MXTREME - BEX BIVOUAC Building in front of Route du Stand 11, 1880 Bex (crossroads Route du Stand / Chemin de Vauvrise).

Please refer to the signposting that has been put in place. 31

SERVICES & GENERAL INFORMATIONS

RECOVERY AREA MXTREME INSURANCE MXSKY / MXFAMILY Your personal belongings can be dropped off at the Helicopter evacuation in Switzerland costs more As part of the measures to fight the pandemic, the race bibs distribution zone in Bex and picked up at than CHF 3’000. Every year, runners get trapped large number of runners on the MXSKY / MXFAMILY the recovery area (Collège Etraz, 300m away) on because they were not sufficiently prepared. unfortunately does not allow us to offer showers or presentation of your race bib. a full meal this year. We apologize for this and we Similarly, a lighter bag can be dropped off at Bex Each runner must be in possession of an individual thank you for your understanding. and picked up at the Base Vie du Sépey. accident insurance covering possible search and evacuation costs in Switzerland. MXTREME The organizer declines all responsibility in the event For MXTREME runners only, a recovery area will be of loss or other damage caused to the equipment Such insurance can be taken out with any available at the Collège de l’Etraz about 300m from and/or valuables. organisation of your choice. the finish. Showers, massages and mattresses will allow you to regain some energy. FOLLOW THE RUNNERS «LIVE» SECURITY • Online follow-up of each runner with indication You can install the «EchoSOS» application shown PERSONAL BELONGINGS of the predicted passage to the checkpoints on on page 13. MXSKY / MXFAMILY montreuxtrail.livetrail.net or the free application In the event of a problem on the course, the number Participants with vehicles nearby are encouraged to «Live Trail» of the Race HQ can be reached at any time: leave their belongings in their cars. • On the MSO terminal, near the indo desk +41 21 552 28 08 However, your personal belongings can be left at • Follow our social networks for the latest the race bibs distribution zone in Montreux and information, news and live tracking picked up at the same place on presentation of your race bib.

33 34 THANK YOU

This 4th edition, set up in particularly difficult conditions by a team of enthusiasts Finally, dear runners, these last words are for you. To all of you who attended this 100% volunteers, was only possible thanks to the trust shown by the town of 4th edition. To you who have always expressed your support during these last Montreux, joined this year by those of Bex, Corbeyrier, Ormont-Dessous and months. To you who are able to make us forget our hard weeks of work with a Villeneuve who contributed their collaboration and part of their population to the simple «thank you» and a smile. organization.

The unfailing support of the Canton of Vaud for our event as well as our ability to federate several communes of the Riviera and the Vaud Alps proves that our initial ambition was realistic: to create an unmissable trail event around the world- YOU ROCK ! THANK Y’ALL ! renowned name of «Montreux», with beneficial spin-offs far and wide.

In view of the exceptional circumstances of this year 2020, it has obviously been STAY HEALTHY, STAY IN MOVEMENT, complicated to be able to count on the private support of our usual partners, to AND SEE YOU IN 2021. whom we extend all our sympathy. We would like to thank all the more our long- standing partners Migros Vaud, Compressport and Isostar who have agreed to renew their partnership, as well as all the companies visible in this document.

We also warmly thank all of our volunteers who have decided to devote their time to all the different tasks, often invisible, that allow us to organize such an event.

35

« Alone we go faster, together we go further »

Association dénivelé positif Cédric Agassis & Diego Pazos co-directors

Route de Pierre-Ozaire 2B 1073 Savigny (Suisse) +41 (0) 79 703 34 76 design horde.ch contenu Léna Wenger Charlotte Bourquin Krummenacher Thierry