Mahiro TSUTSUI

JapanJapanActive
Born
Aug 20, 2004 (22 years old)

Mahiro TSUTSUI is a Japan middle-distance runner, born on August 20, 2004. She competes primarily in the 1500m, 3000m and Semi.

Her personal bests include 4:52.70 in the 1500m, 10:05.60 in the 3000m, 1:16:59 in the Semi and 2:48:51 in the Marathon. She is currently active on the international athletics circuit, representing Japan.

2026 season best1:16:59Oct 18, 2026 · Tokyo
Last competitionTokyo Legacy Half Marathon 2026Oct 18, 2026 · 1:16:59

As of Nov 15, 2026: 2026 season best 1:16:59 (Oct 18, 2026, Tokyo (JPN)) · Last competition: Tokyo Legacy Half Marathon 2026, Oct 18, 2026, 1:16:59 · 22 years old

DisciplineResultAll-time
1500mChiba 2021Japan 1500 m all-time list4:52.70819 pts–
3000mChiba 2021Japan 3000 m all-time list10:05.60897 pts–
SemiTokyo 2026Japan Half Marathon all-time list1:16:59991 pts–
MarathonSapporo 2026Japan Marathon all-time list2:48:51949 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026Semi 1:16:59–Oct 18, 2026Tokyo Legacy Half Marathon 2026
2026Marathon 2:48:51–Aug 30, 2026Hokkaido Marathon
20211500m 4:52.70–Sep 24, 2021Prefectural Tendai Stadium, Chiba (JPN)
20213000m 10:05.60–Sep 26, 2021Prefectural Tendai Stadium, Chiba (JPN)