Gymbox’s latest campaign, Start Line, challenges Londoners to race each other in the street with an interactive out-of-home (OOH) activation. Created by Pablo, the campaign features a start and finish line across two billboards, encouraging passers-by to take part in a 10-metre dash. The activation promotes Gymbox's ethos that working out should be fun, and includes a velocity speed gun to compare speeds with friends and Olympic sprinters. Results will be shared on TikTok and Instagram. The campaign follows Gymbox's playful “Practice Safe Sets” condom giveaway and embraces a no-pressure, energetic fitness experience.