2025 TCS London Marathon: Your Essential Digital Companion for the Big Day

The TCS London Marathon App, with all its fantastic features, is your perfect companion to the 2025 TCS London Marathon on Sunday 27 April. We recommend that you download and try out the App now so you can familiarise yourself with all its special features before the big day. Use the Wayfinder on Marathon Day to quickly find out where you are and what is around you. Spectators can use the Wayfinder to see when chosen participants are expected to pass landmarks on the route. Participants can use the App to: record their marathon miles track other participants (and invite friends and family to track them too!) take a photo with an AR medal access their finisher certificate take selfies to post on social media and much more. Supporters can also use the App to: follow participants’ progress and see when they’ve passed landmarks on the route, using the Wayfinder check out results and your run summary and send ‘belief booster’ messages of support to chosen participants! Don’t miss your chance to take advantage of the TCS London Marathon App and have the best possible Marathon Day experience.