RW

Rosemary Wanjiru

Photo: Narnabi—CC BY-SA 4.0

Rosemary Wanjiru

KENWomen

Birth dateDec 9, 1994

BirthplaceKenya, Kenya

Height-

Weight-

Rosemary Monica Wanjirū (born 9 December 1994) is a Kenyan professional female long-distance runner.

She won the silver medal in the 5000 metres at the 2015 African Games, and represented her country at the 2019 World Athletics Championships, finishing fourth in the 10,000 metres.

Wanjirū won the 2023 Tokyo Marathon and placed second at the 2022 Berlin Marathon. With her Tokyo mark, she sits sixth on the marathon world all-time list. She achieved the second-fastest ever women's marathon debut at the time at the 2022 Berlin Marathon. 2025 Berlin Marathon winner

Key facts

10 Kilometres Road

29:50

Marathon

2:16:14

2026 season best

2:24:47

Mar 1, 2026 · Tokyo (JPN)

2026 season best

Last competition

Tokyo Marathon

Mar 1, 2026 · 2:24:47

Age

31 years old

As of Sep 15, 2026: 10 Kilometres Road 29:50, Marathon 2:16:14 (#11 all-time), 2026 season best 2:24:47 (Mar 1, 2026, Tokyo (JPN)) · Last competition: Tokyo Marathon, Mar 1, 2026, 2:24:47 · 31 years old

PB

Personal bests

4:18.15

8:44.24

15:03.49

30:35.75

1:05:34

2:16:14

15:43

48:34

29:50

39:06

Performance Charts

Season bests

Season	Discipline	Result	Wind	Date	Trend	Competitions
2026	Marathon	2:24:47	-	Mar 1, 2026	↓	Tokyo Marathon
2025	10Kilometr	33:14	-	May 18, 2025	↓	Great Manchester Run
2025	Marathon	2:19:57	-	Mar 2, 2025	↓	Tokyo Marathon
2024	Semi	1:10:53	-	Dec 15, 2024	↓	Bangsaen21 Half Marathon
2024	Marathon	2:16:14	-	Mar 3, 2024	↓	Tokyo Marathon
2023	15Kilometr	48:34	-	Dec 3, 2023	↑	Pfixx Solar Montferland Run
2023	Semi	1:10:35	-	Nov 12, 2023	↓	B.A.A. Half Marathon
2023	Marathon	2:16:28	-	Mar 5, 2023	↓	Tokyo Marathon
2022	10Kilometr	31:04	-	Jul 4, 2022	↓	AJC Peachtree Road Race
2022	10000m	32:10.24	-	May 14, 2022	↓	ND Soft Stadium, Tendo (JPN)
2022	15Kilometr	48:54	-	Jul 10, 2022	↑	Utica, NY (USA)
2022	Semi	1:07:36	-	Apr 30, 2022	↓	Herzogenaurach (GER)
2022	Marathon	2:18:00	-	Sep 25, 2022	↓	BMW Berlin Marathon, Berlin
2021	5Kilometre	15:43	-	Sep 12, 2021	-	Adizero Road to Records
2021	10Kilometr	31:09	-	Oct 3, 2021	↓	10K Valencia Ibercaja
2020	5000m	15:03.49	-	Jul 8, 2020	↑	Athletics Stadium, Fukagawa (JPN)
2020	10Kilometr	29:50	-	Jan 12, 2020	↓	10K Valencia Ibercaja
2020	10000m	30:38.18	-	Jul 15, 2020	↓	Athletic Track, Abashiri (JPN)
2020	Semi	1:05:34	-	Feb 21, 2020	↓	Ras Al Khaimah Half Marathon
2019	5000m	15:19.03	-	May 19, 2019	↑	Kumagaya (JPN)
2019	10000m	30:35.75	-	Sep 28, 2019	↓	IAAF World Championships in Athletics
2019	10Kilometr	30:50	-	Jan 13, 2019	↓	10K Valencia Ibercaja
2019	12Kilometr	39:06	-	May 5, 2019	-	Lilac Bloomsday Run
2019	10MilesRoa	50:42	-	Apr 7, 2019	-	Cherry Blossom 10M, Washington, DC
2018	3000m	8:44.24	-	Nov 10, 2018	↑	Yokohama (JPN)
2018	5000m	15:08.61	-	Apr 28, 2018	↑	Hiroshima (JPN)
2018	10Kilometr	31:34	-	Sep 8, 2018	↓	Prague Grand Prix
2018	10000m	31:57.66	-	May 19, 2018	↓	Kumagaya (JPN)
2017	3000m	8:51.61	-	Apr 8, 2017	↑	Setagaya, Tokyo (JPN)
2017	5000m	15:09.68	-	Sep 24, 2017	↑	Osaka (JPN)
2017	10000m	31:41.23	-	May 20, 2017	↓	Akita (JPN)
2016	3000m	9:04.24	-	Apr 2, 2016	↑	Tokyo (JPN)
2016	5000m	15:15.14	-	Apr 29, 2016	↑	Hiroshima (JPN)
2016	10Kilometr	32:04	-	Dec 23, 2016	↓	Okayama (JPN)
2015	3000m	8:57.69	-	May 17, 2015	↑	Kumagaya (JPN)
2015	5000m	15:15.42	-	Sep 27, 2015	↑	Gifu (JPN)
2015	10Kilometr	32:03	-	Dec 23, 2015	↓	Okayama (JPN)
2014	1500m	4:23.90	-	May 17, 2014	↓	Fukushima (JPN)
2014	3000m	8:48.44	-	Oct 11, 2014	↑	Yamaguchi (JPN)
2014	5000m	15:19.00	-	Jun 8, 2014	↑	Fukushima (JPN)
2013	3000m	8:49.32	-	Aug 3, 2013	↑	Oita (JPN)
2013	5000m	15:30.41	-	Nov 30, 2013	↑	Yokohama (JPN)
2012	1500m	4:18.15	-	Jul 30, 2012	↓	Niigata (JPN)
2012	3000m	8:51.97	-	Aug 2, 2012	↑	Niigata (JPN)
2012	5000m	15:40.35	-	Dec 1, 2012	↑	Yokohama (JPN)
2011	3000m	9:33.70	-	Aug 7, 2011	↑	Iwate (JPN)
2011	5000m	15:26.07	-	Dec 4, 2011	↑	-

2026

1 performance

Discipline	Result	Wind	Date	Competitions
Marathon	2:24:47	-	Mar 1	Tokyo Marathon

2025

3 performances

Discipline	Result	Wind	Date	Competitions
Marathon	2:21:05	-	Sep 21	BMW Berlin Marathon, Berlin
10Kilometr	33:14	-	May 18	Great Manchester Run
Marathon	2:19:57	-	Mar 2	Tokyo Marathon

2024

2 performances

Discipline	Result	Wind	Date	Competitions
Semi	1:10:53	-	Dec 15	Bangsaen21 Half Marathon
Marathon	2:16:14	-	Mar 3	Tokyo Marathon

2023

4 performances

Discipline	Result	Wind	Date	Competitions
15Kilometr	48:34	-	Dec 3	Pfixx Solar Montferland Run
Semi	1:10:35	-	Nov 12	B.A.A. Half Marathon
Marathon	2:26:42	-	Aug 26	World Athletics Championships, Budapest 2023, Hősök tere, Budapest
Marathon	2:16:28	-	Mar 5	Tokyo Marathon

2022

6 performances

Discipline	Result	Wind	Date	Competitions
Marathon	2:18:00	-	Sep 25	BMW Berlin Marathon, Berlin
15Kilometr	48:54	-	Jul 10	Boilermaker 15K, Utica, NY
10Kilometr	31:04	-	Jul 4	AJC Peachtree Road Race
10000m	32:10.24	-	May 14	64th East Japan Business Group Championship, ND Soft Stadium, Tendo
Semi	1:07:36	-	Apr 30	adizero Road to Records, Herzogenaurach
Semi	1:09:27	-	Mar 20	Semi Marathon de Lille, Lille

2021

2 performances

Discipline	Result	Wind	Date	Competitions
10Kilometr	31:09	-	Oct 3	10K Valencia Ibercaja
5Kilometre	15:43	-	Sep 12	Adizero Road to Records

2020

5 performances

Discipline	Result	Wind	Date	Competitions
Semi	1:07:10	-	Oct 17	World Athletics Half Marathon Championships, Gdynia
10000m	30:38.18	-	Jul 15	Hokuren Distance Challenge, Athletic Track, Abashiri
5000m	15:03.49	-	Jul 8	Hokuren Distance Challenge, Athletics Stadium, Fukagawa
Semi	1:05:34	-	Feb 21	Ras Al Khaimah Half Marathon
10Kilometr	29:50	-	Jan 12	10K Valencia Ibercaja

2019

9 performances

Discipline	Result	Wind	Date	Competitions
10000m	30:35.75	-	Sep 28	IAAF World Championships in Athletics
10000m	31:26.22	-	Aug 22	Kenyan Championships, Nyayo National Stadium, Nairobi
10000m	31:50.44	-	Jul 20	Kenyan Prisons Ch., Moi International Sports Centre, Kasarani, Nairobi
5000m	15:19.03	-	May 19	61st East Japan Corporate Teams Championships, Kumagaya
12Kilometr	39:06	-	May 5	Lilac Bloomsday Run
10000m	31:11.79	-	Apr 21	67th Hyogo Relay Carnival, Universiade Commemorative Stadium, Kobe
10MilesRoa	50:42	-	Apr 7	Cherry Blossom 10M, Washington, DC
10000m	32:48.2HT	-	Mar 16	Aloha Zane Branson Memorial 10,000m, Tambach
10Kilometr	30:50	-	Jan 13	10K Valencia Ibercaja

2018

8 performances

Discipline	Result	Wind	Date	Competitions
3000m	8:44.24	-	Nov 10	Yokohama 267th Nittai University Time Trials, Yokohama
5000m	15:15.03	-	Sep 23	Osaka All Japan Corporate Teams Championships, Osaka
10Kilometr	31:34	-	Sep 8	Prague Grand Prix
10Kilometr	34:32	-	Jul 14	Kabarak 10K, Kabarak
10000m	32:59.3HT	-	Jun 21	Kenyan Championships, Nairobi
10000m	32:59.3HT	-	Jun 21	Kenyan Championships, Nairobi
10000m	31:57.66	-	May 19	Kumagaya East Japan Corporate Teams Championships, Kumagaya
5000m	15:08.61	-	Apr 28	Hiroshima Oda Memorial, Hiroshima

2017

6 performances

Discipline	Result	Wind	Date	Competitions
5000m	15:09.68	-	Sep 24	Osaka All Japan Corporate Ch., Osaka
5000m	16:09.70	-	Jun 24	Nairobi Kenya World Championship Trials, Nairobi
10000m	31:41.23	-	May 20	Akita East JPN Corporate Team Championships, Akita
5000m	15:11.48	-	Apr 29	Hiroshima Oda Memorial, Hiroshima
3000m	8:51.61	-	Apr 8	Setagaya Distance Meet, Setagaya, Tokyo
5000m	15:13.39	-	Apr 1	Kumamoto Kanaguri Memorial, Kumamoto

2016

4 performances

Discipline	Result	Wind	Date	Competitions
10Kilometr	32:04	-	Dec 23	Okayama Sanyo 10 km, Okayama
5000m	15:22.05	-	Dec 10	Yamaguchi
5000m	15:18.80	-	Sep 25	Osaka
5000m	15:23.10	-	May 21	Kumagaya East Japan Corporate Team Championships, Kumagaya

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FAQ

Frequently asked questions

What is Rosemary Wanjiru's 10 Kilometres Road personal best?

Rosemary Wanjiru's 10 Kilometres Road personal best is 29:50, set on Jan 12, 2020 in Valencia (ESP).

Which events does Rosemary Wanjiru compete in?

Rosemary Wanjiru competes in the 10 Kilometres Road and Marathon.

How did Rosemary Wanjiru perform in 2026?

2026 season best: 2:24:47, set on Mar 1, 2026 in Tokyo (JPN). Last competition: Tokyo Marathon on Mar 1, 2026, 2:24:47.