SM
Samwel Chebolei Masai

Samwel Chebolei Masai

KENKENMen
Birth dateMar 20, 2001
Height-
Weight-

Known for their commitment to athletics with a focus on excellence. As a registered World Athletics competitor, they have participated consistently in track and field events across national and international competitions. Their dedication to the sport reflects a genuine passion for athletic achievement and personal improvement. Through years of training and competition, they have developed the skills and mental toughness necessary to compete at elite levels. Their involvement in various meets has provided valuable experience against strong international opposition.

Their athletic journey has been marked by steady development and a commitment to pushing their personal limits. Each competition serves as an opportunity to refine technique and build strength in their chosen disciplines. Their performances demonstrate the result of dedicated training and an unwavering focus on becoming a better athlete. The competitive experiences they have gained have shaped them into a capable and determined competitor.

Looking forward, this athlete continues to work toward achieving new personal bests and representing their country with pride. Their ongoing commitment to athletics extends beyond individual success, as they contribute to their community and inspire others through their dedication. With rigorous training and a strategic approach to competition, they pursue their goals while maintaining the discipline and passion that define elite athletic performance.

Key facts
Half Marathon
58:48
10 000 m
27:07.65
2026 season best
58:48
Mar 28, 2026 · Praha (CZE)
Last competition
Antrim Coast Half Marathon
Aug 23, 2026 · 1:01:02
Age
25 years old

As of Sep 13, 2026: Half Marathon 58:48, 10 000 m 27:07.65 (#131 all-time), 2026 season best 58:48 (Mar 28, 2026, Praha (CZE)) · Last competition: Antrim Coast Half Marathon, Aug 23, 2026, 1:01:02 · 25 years old

PB

Personal bests

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2026
Semi
58:48-Mar 28, 2026-Generali Prague Half Marathon
2025
5000m
13:22.86-May 3, 2025
Yangtze River Delta Athletics Diamond Gala, China Textile City Sports Centre, Shaoxing/Keqiao - Diamond Discipline
2025
10000m
27:07.65-Jul 5, 2025
Prefontaine Classic, Hayward Field, Eugene, OR - Diamond Discipline
2024
5000m
13:00.69-Apr 20, 2024
Wanda Diamond League Xiamen, Egret Stadium, Xiamen - Diamond Discipline
2024
10000m
27:17.78-Nov 23, 2024
2024 Hachioji Long Distance
2024
CrossCount
28:18-Mar 30, 2024
45th World Athletics Cross Country Championships, Park of Friendship, Beograd
2023
10Kilometr
27:32-Feb 26, 2023
10K Facsa Castellón
2022
5000m
13:29.49-Dec 10, 2022
Edion Distance Challenge
2022
5Kilometre
13:39-Nov 12, 2022-Fukuoka (JPN)
2022
10000m
27:10.06-Nov 26, 2022
Gion Stadium, Machida (JPN)
2022
10Kilometr
27:18-Feb 27, 2022
Castellón (ESP)
2022
CrossCount
29:29-Jan 22, 2022
Kenyan Cross Country Championships, Eldoret - XC 10.0km
2021
5000m
13:11.72-Dec 10, 2021
Edion Distance Challenge in Kyoto 2021, Takebishi Stadium, Kyoto
2021
10000m
27:28.77-Nov 27, 2021
Kamiyugi Park Athletic Stadium, Hachioji (JPN)
2020
5000m
13:23.99-Oct 3, 2020
Kokushikan University Stadium, Tama (JPN)
2020
10000m
27:36.37-Nov 21, 2020
Kamiyugi Park Athletic Stadium, Hachioji (JPN)
2019
CrossCount
24:19-Mar 30, 2019
43rd IAAF World Cross Country Championships, Århus
2018
5000m
13:29.84-Sep 29, 2018
Tokyo (JPN)
2017
1500m
3:46.1h-Jun 14, 2017-Nairobi (KEN)

2026

3 performances
DisciplineResultWindDateCompetitions
Semi
1:01:02-Aug 23Antrim Coast Half Marathon
Semi
58:48-Mar 28Generali Prague Half Marathon
Semi
58:59-Feb 14Ras Al Khaimah Half Marathon

2024

12 performances
DisciplineResultWindDateCompetitions
CrossCount
30:49-Dec 7The Great Chepsaita Cross Country, Chepsaita, Eldoret - XC 10.0km
10000m
27:17.78-Nov 232024 Hachioji Long Distance
5000m
13:30.91-Nov 1012th NITTAIDAI Challenge Games, NITTAIDAI Athletic Stadium, Yokohama
5000m
13:19.23-Jul 20Hokuren Distance Challenge - Chitose, Aoba Park Athletic Field, Chitose
5000m
13:17.37-Jul 17Hokuren Distance Challenge - Fukagawa
5000m
13:39.42-Jun 15National Trials for the XXXIII Olympics Games, Nyayo National Stadium, Nairobi
10000m
DNF-May 25Prefontaine Classic
5000m
13:04.00-Apr 27Yangtze Delta Athletics Diamond Gala, Suzhou Olympic Sports Centre, Suzhou - Diamond Discipline
5000m
13:00.69-Apr 20Wanda Diamond League Xiamen, Egret Stadium, Xiamen - Diamond Discipline
CrossCount
28:18-Mar 3045th World Athletics Cross Country Championships, Park of Friendship, Beograd
CrossCount
28:39-Mar 2Kenyan Cross Country Championships, Prison Staff Training College, Ruiru - XC 2.0km
CrossCount
29:50-Feb 3Sirikwa Classic Cross Country Tour – Gold, Lobo Village, Eldoret - XC 10.0km

2023

1 performance
DisciplineResultWindDateCompetitions
10Kilometr
27:32-Feb 2610K Facsa Castellón

2022

7 performances
DisciplineResultWindDateCompetitions
5000m
13:29.49-Dec 10Edion Distance Challenge
10000m
27:10.06-Nov 26Hachioji Long Distance Meeting, Gion Stadium, Machida
5Kilometre
13:39-Nov 12The Fst in Fukuoka, Fukuoka
5000m
13:34.10-Jun 24Kenyan Trials for World Championships and Commonwealth Games 2022, Moi International Sports Centre, Kasarani, Nairobi
10Kilometr
27:18-Feb 2710K FACSA Castelló, Castellón
CrossCount
29:46-Feb 12Agnes Tirop Cross Country Classic, Eldoret - XC 10.0km
CrossCount
29:29-Jan 22Kenyan Cross Country Championships, Eldoret - XC 10.0km

2021

8 performances
DisciplineResultWindDateCompetitions
5000m
13:11.72-Dec 10Edion Distance Challenge in Kyoto 2021, Takebishi Stadium, Kyoto
10000m
27:28.77-Nov 27Long Distance Meeting, Kamiyugi Park Athletic Stadium, Hachioji
5000m
13:15.18-Nov 14292nd Nippon Sport Science University Long Distance Competition, NITTAIDAI Athletic Stadium, Yokohama
5000m
DNS-Aug 8The XXXII Olympic Games
5000m
13:17.43-Jun 19Kenya Olympic Games Trials, Moi International Sports Centre, Kasarani, Nairobi
5000m
13:36.87-Jun 17Kenya Olympic Games Trials, Moi International Sports Centre, Kasarani, Nairobi
5000m
13:12.55-Jun 8Ethiopian Trials, FBK Stadium, Hengelo
5000m
13:30.13-May 29Next Generation Athletics, Atletiekbaan Brakkenstein, Nijmegen

2020

4 performances
DisciplineResultWindDateCompetitions
5000m
13:24.55-Dec 6282nd Nittadai(NSSU) Distance Meet, NITTAIDAI Athletic Stadium, Yokohama
10000m
27:36.37-Nov 21Long Distance Meeting, Kamiyugi Park Athletic Stadium, Hachioji
5000m
13:28.87-Nov 15281st Nittadai(NSSU) Distance Meet, NITTAIDAI Athletic Stadium, Yokohama
5000m
13:23.99-Oct 31st Kokushikan University Long Distance Competition, Kokushikan University Stadium, Tama

2019

1 performance
DisciplineResultWindDateCompetitions
CrossCount
24:19-Mar 3043rd IAAF World Cross Country Championships, Århus

2018

8 performances
DisciplineResultWindDateCompetitions
5000m
13:30.22-Nov 11Yokohama 267th Nittai University Time Trials, Yokohama
5000m
13:29.84-Sep 29Tokyo
5000m
13:38.27-Jun 23Kenyan Championships, Nairobi
5000m
13:40.92-Jun 22Kenyan Championships, Nairobi
5000m
13:38.27-Jun 21Kenyan Championships, Nairobi
5000m
13:40.92-Jun 21Kenyan Championships, Nairobi
5000m
13:35.44-Jun 11Nairobi Kenya World U20 Trials, Nairobi
5000m
13:43.90-Jun 11Nairobi Kenya World U20 Trials, Nairobi

2017

1 performance
DisciplineResultWindDateCompetitions
1500m
3:46.1HT-Jun 14Nairobi World Youth Trials, Nairobi
Showing 1 - 50 of 51

Honours

5

45th World Athletics Cross Country Championships

Cross Country Senior Race

2024
8

43rd IAAF World Cross Country Championships

Cross Country U20 Race

2019
🥇

Kenyan Championships

5000 Metres

2018
FAQ

Frequently asked questions

What is Samwel Chebolei Masai's Half Marathon personal best?

Samwel Chebolei Masai's Half Marathon personal best is 58:48, set on Mar 28, 2026 in Praha (CZE).

Which events does Samwel Chebolei Masai compete in?

Samwel Chebolei Masai competes in the Half Marathon and 10 000 m.

How did Samwel Chebolei Masai perform in 2026?

2026 season best: 58:48, set on Mar 28, 2026 in Praha (CZE). Last competition: Antrim Coast Half Marathon on Aug 23, 2026, 1:01:02.