42.195 kilometers of effort, determination, and solidarity. On April 4, 2027, as the Paris Marathon reinvents itself with a new format and a redesigned experience for participants, Gustave Roussy invites runners to take their athletic challenge to the next level. Through the “charity bib” program, each runner can rally their friends and family to raise €420 in donations to support cancer research. It’s a concrete way to turn a personal achievement into a collective commitment and to contribute to the innovations developed by the teams at Gustave Roussy for the benefit of patients.

Cross the finish line, advance research.

Race bib: €85 · Minimum fundraising goal: €420