Keishiro Nakanishi

JapanJapanActive
Born
Apr 24, 2005 (21 years old)
Events
Half Marathon

Keishiro Nakanishi is a Japan middle-distance runner, born on April 24, 2005. He competes primarily in the 1500m, 3000m and 5000m.

His personal bests include 3:56.63 in the 1500m, 8:45.02 in the 3000m, 14:54.96 in the 5000m, 30:03.51 in the 10000m and 1:03:04 in the Semi. He is currently active on the international athletics circuit, representing Japan.

Personal best · Half Marathon1:03:04
2026 season best1:03:04Feb 1, 2026 · Marugame
Last competitionThe 103rd Hakone Ekiden Qualifying MeetOct 17, 2026 · 1:04:44

As of Nov 13, 2026: Half Marathon 1:03:04, 2026 season best 1:03:04 (Feb 1, 2026, Marugame (JPN)) · Last competition: The 103rd Hakone Ekiden Qualifying Meet, Oct 17, 2026, 1:04:44 · 21 years old

DisciplineResultAll-time2026
1500mHikone 2023Japan 1500 m all-time list3:56.63895 pts––
3000mOtsu 2022Japan 3000 m all-time list8:45.02809 pts––
5000mKobe 2022Japan 5000 m all-time list14:54.96825 pts––
10000mAbashiri 2025Japan 10 000 m all-time list30:03.51950 pts––
SemiMarugame 2026Japan Half Marathon all-time list1:03:041,066 pts–#931
5KilometreTokyo 202514:20––

Progression

SeasonDisciplineResultWindDateCompetitions
202610000m 30:16.91–Jul 12, 2026Summer Distance Challenge
2026Semi 1:03:04–Feb 1, 202678th Kagawa Marugame International Half Marathon
20255Kilometre 14:20–Apr 13, 2025Adidas Tokyo City Run
202510000m 30:03.51–Jul 20, 20252025 Summer Distance Challenge, Athletic Track, Abashiri
2025Semi 1:04:45–Oct 18, 2025The 102nd Hakone Ekiden Qualifying Meet, Showa Kinen Park, Tachikawa
20241500m 4:00.08–May 9, 2024The 103th Kanto Inter-University Track&Field Championships, National Stadium, Tokyo
2024Semi 1:05:07–Nov 17, 2024Ageo City Half Marathon, Ageo
20231500m 3:56.63–Jul 15, 2023Shiga Athletics Championships, Athletic Stadium, Hikone
FAQ

Frequently asked questions

Keishiro Nakanishi's Half Marathon personal best is 1:03:04, set on Feb 1, 2026 in Marugame (JPN).

Keishiro Nakanishi competes in the Half Marathon.

2026 season best: 1:03:04, set on Feb 1, 2026 in Marugame (JPN). Last competition: The 103rd Hakone Ekiden Qualifying Meet on Oct 17, 2026, 1:04:44.