OSAKA RUNNERS TRIAL is a June running event in Nagai Park in Osaka City, Japan, offering 30 km, half marathon, 10 km, and half marathon relay distances. The 30 km race is the most structured option, intended for runners seeking a controlled long effort rather than a casual run.
The course is flat, suitable for runners assessing their current fitness or aiming for a personal best. The 30 km field includes pacers from 4:15 to 6:00 per kilometer, set at 15-second intervals, providing runners with a precise group to follow. This edition marks the 15th OSAKA RUNNERS TRIAL.