Want to run faster off the bike? Stop training like a runner and start training for a single sport: triathlon. Durability is the biggest limiter to triathlon run speed. Additional run mileage is not the secret to a successful triathlon run performance. Athletes looking to run faster off the bike need to run the right type of volume to build appropriate multisport resilience and durability. Your triathlon resilience & durability is developed week after week, month after month