The Japanese Ekiden Relay: Rooted in Volume and Group Discipline
By STRIDD Team · Evidence-based training science
The Japanese Ekiden relay race is one of the most demanding and celebrated running traditions in the world, and the training philosophy it has produced is equally rigorous. Rooted in the culture of Japanese university and corporate running teams, Ekiden-style training is built on extraordinarily high weekly mileage, disciplined group training sessions called Gasshuku, and an unshakeable belief that aerobic volume is the foundation of all running performance.
At its core, the Ekiden method demands that runners accumulate 140–200km per week during base phases, with the vast majority of that volume run at genuinely easy, conversational paces. The physiological rationale is well established: high aerobic volume builds mitochondrial density, expands capillary networks in muscle tissue, improves fat oxidation, and raises the lactate threshold over time. Japanese elite distance runners — who dominate the Ekiden circuit — demonstrate some of the highest aerobic capacities and most efficient running economies in the world.
What distinguishes Ekiden training from simply running a lot is its periodization and group accountability structure. Runners train together in Gasshuku camps, where peer pressure and shared suffering become performance catalysts. Sessions are precise: easy runs are truly easy (HR Zone 1–2), and quality sessions — introduced sparingly — are executed with surgical exactness. There is no middle-pace junk mileage. Every kilometer has a physiological assignment.
For recreational runners adopting Ekiden principles, the key takeaways are: prioritize volume over intensity in the base phase, run your easy days genuinely easy, and introduce quality sessions only after a substantial aerobic foundation is established. Expect 12–20 weeks of base building before sharpening. The results compound over months, not weeks — patience is not optional, it is the methodology.