別府大分毎日マラソン
Kawauchi is a frequent competitor, entering many races each year (averaging a marathon per month) ranging in distance from the 1500 m to the 50 km ultramarathon. Among his better performances are victories at the Boston Marathon, the Hokkaido Marathon and the Beppu-Ōita Marathon and top-three finishes at the Tokyo Marathon and Fukuoka Marathon (the two most important marathons in Japan). His personal best for the distance is 2:07:27 (Lake Biwa 2021). Guinness World Records has recognized Kawauchi for becoming the first person to run more than 100 sub-2:20 marathons.