Best Race Series x Adidas 2026 - The Speed Test - 5K

The Speed Test is the Best Race Series x Adidas 2026 finale. This 5K is short, sharp, and decisive, where every second matters. The course is fast, flat, and purpose-built for personal bests, running on traffic-free, smooth tarmac paths with minimal elevation. It's the final challenge to claim your title after four races.