Tommy Trees is a British endurance athlete, coach, and a key pillar of the London running community. He has competed for the Japanese National Triathlon Team and boasts personal bests including a 2:29 marathon, 1:10 half-marathon, and 4:17 middle-distance triathlon. He also holds the world record for the fastest marathon run in Crocs. As a lead coach at NRG Coaching, Tommy guides a vibrant global community of runners through online and one-on-one training plans, emphasising enjoyment, consistency, and sustainable performance. Beyond coaching, he actively shares his experience and insights, inspiring athletes across London and worldwide.