Yamazawa, Yoko

Born 19682003 – 2026

Events

90 race dates

Best pace

13.061

km/h · 2005

Best finish

8th

of 575 · 2004

Distance raced

7,861

km · splits not double-counted

Pace over time

km/h · higher is faster

Actual pace
Age-graded pace
Split of a race already plotted

Results

Every result for this runner in date order. Splits of a race are indented under it and are not counted again in the distance total.
Date	Event	Distance	Result	Pace km/h	Placing
2003-06-29	Lake Saroma 100 Km UltramarathonJapan茨城陸協	100km	8:37:54 h	11.585	21/36
2003-11-16	IAU 100km WC TaipeiChinese Taipei	100km	9:02:34 h	11.059	49/149
2004-01-11	Miyako 100 Km UltramarathonJapan	100km	8:44:19 h	11.443	5/10
2004-05-16	Yatsugatake Nobeyama 100 kmJapan	100km	9:35:16 h	10.430	8/575
2004-06-27	Lake Saroma 100 Km UltramarathonJapan	100km	8:22:02 h	11.951	50/45
2004-09-11	IAU 100km WC WinschotenNetherlandsNationalteam Japan	100km	8:03:37 h	12.407	59/202
2004-09-11	IAU 100km WC Winschoten - 50mi splitNetherlandsSplit of the race above; not counted again in the distance total	50mi	7:13:09 h	11.146	60/202
2004-10-17	River Shimanto 100kmJapan	100km	8:31:56 h	11.720	30/1187
2005-01-16	Miyako 100 Km UltramarathonJapan	100km	8:49:10 h	11.339	6/14
2005-06-26	IAU 100km WC Yubetsu (20. Lake Saroma 100 Km Ultramarathon) - 50 km SplitJapanSplit of the race above; not counted again in the distance total	50km	3:49:42 h	13.061	57/100
2005-06-26	IAU 100km WC Yubetsu (20. Lake Saroma 100 Km Ultramarathon)JapanNationalteam Japan	100km	8:10:27 h	12.234	43/98
2005-08-07	Ultramarathon OkumusashiJapan*Kashima-gun, Ibaraki	75km	7:12:52 h	10.396	36/668
2006-01-15	Miyako 100 Km UltramarathonJapan	100km	8:37:48 h	11.587	6/18
2006-06-25	Lake Saroma 100 Km UltramarathonJapanIAU Bronze	100km	8:08:39 h	12.279	21/79
2006-08-13	Ultramarathon OkumusashiJapan*Fuchu, Tokyo Pref.	75km	6:37:19 h	11.326	22/694
2006-10-08	IAU 100km WC Misari/SeoulSouth KoreaIAU BronzeNational team Japan	100km	8:07:50 h	12.299	59/116
2006-10-08	IAU 100km WC Misari/Seoul - 50km SplitSouth KoreaSplit of the race above; not counted again in the distance totalNationalteam Japan	50km	3:51:07 h	12.980	63/116
2007-01-14	Miyako 100 Km UltramarathonJapan	100km	8:38:41 h	11.568	6/12
2007-06-24	Lake Saroma 100 Km UltramarathonJapanIAU Bronze	100km	8:01:59 h	12.449	27/50
2007-08-05	Ultramarathon OkumusashiJapanお笑い蔵本道場	75km	6:47:06 h	11.054	39/755
2007-09-08	RUN Winschoten 100 kmNetherlandsIAU BronzeNationalteam Japan	100km	8:04:35 h	12.382	79/224
2007-09-08	RUN Winschoten 100 km - 50km SplitNetherlandsIAU BronzeSplit of the race above; not counted again in the distance totalNationalteam Japan	50km	3:58:47 h	12.564	107/224
2007-09-08	IAU 100km WC (RUN Winschoten 100 km)NetherlandsIAU BronzeNationalteam Japan	100km	8:04:35 h	12.382	65/123
2008-01-13	Miyako 100 Km UltramarathonJapan	100km	8:42:32 h	11.483	5/12
2008-06-22	Lake Saroma 100 Km UltramarathonJapanIAU Bronze	100km	7:58:08 h	12.549	17/49
2008-08-31	Tsurunuma 52 kmJapanオランダファミリー	52km	4:13:13 h	12.321	6/111
2008-11-08	IAU 100 km WC Tuscania (100 km degli Etruschi)ItalyIAU GoldNationalteam Japan	100km	8:02:46 h	12.428	58/159
2009-01-11	Miyako 100 Km UltramarathonJapan	100km	8:27:07 h	11.832	6/18
2009-04-11	Toda Saiko 70 kmJapan*Ibaraki Pref.	70km	6:03:04 h	11.568	11/174
2009-04-26	Fuji 5 Lakes 72 km ChallengeJapan	72km	5:54:02 h	12.202	13/455
2009-06-06	Aso Caldera Super Marathon 50 kmJapan	50km	3:58:06 h	12.600	25/39
2009-06-19	IAU 100km WC Torhout (30. Nacht van West-Vlaanderen)BelgiumNationalteam Japan	100km	8:10:05 h	12.243	57/126
2009-06-19	IAU 100km WC Torhout (30. Nacht van West-Vlaanderen) - 50mi splitBelgiumSplit of the race above; not counted again in the distance total	50mi	6:33:18 h	12.276	64/219
2009-06-28	Lake Saroma 100 Km UltramarathonJapan*Ibaraki Pref.	100km	8:19:30 h	12.012	37/2284
2009-08-02	Ultramarathon OkumusashiJapan*Tokyo	75km	7:07:41 h	10.522	86/940
2010-01-17	Miyako 100 Km UltramarathonJapan	100km	8:38:18 h	11.576	6/19
2010-03-27	IAU 100km Asian ChampionshipSouth Korea	100km	8:53:11 h	11.253	8/19
2010-04-10	Toda Saiko 70 kmJapan*Ibaraki Pref.	70km	6:10:35 h	11.333	21/217
2010-04-25	Fuji 5 Lakes 72 km ChallengeJapan*Ibaraki Pref.	72km	6:58:12 h	10.330	25/532
2010-06-27	Lake Saroma 100 Km UltramarathonJapanIAU Bronze*Ibaraki Pref.	100km	8:51:02 h	11.299	72/1606
2010-08-29	Tsurunuma 52 kmJapan*Ibaraki	52km	4:54:00 h	10.612	13/108
2010-10-09	Echigo Kubikino 50km UltramarathonJapan*Ibaraki Pref.	50km	3:52:55 h	12.880	7/345
2011-01-16	Miyako 100 Km UltramarathonJapan	100km	8:42:06 h	11.492	5/16
2011-04-24	Okukumano 60 Km UltramarathonJapan	60km	5:00:17 h	11.989	4/75
2011-06-05	Rishiri Island Ultra MarathonJapan	55km	4:18:43 h	12.755	4/6
2011-06-26	Lake Saroma 100 Km UltramarathonJapanIAU Bronze*Ibaraki Pref.	100km	8:22:25 h	11.942	52/2170
2011-08-21	North Okhotsk 55 Km MarathonJapan	55km	4:32:54 h	12.092	3/81
2011-09-25	Akita Nairiku 50km MarathonJapan*Ibaraki	50km	3:52:05 h	12.926	8/227
2012-01-14	Miyako 100 Km UltramarathonJapan	100km	8:52:14 h	11.273	6/17
2012-04-22	Okukumano 100 Km UltramarathonJapan*Ibaraki Pref.	100km	9:10:08 h	10.906	8/149
2012-06-03	Rishiri Island Ultra MarathonJapan	55km	4:19:00 h	12.741	4/6
2012-06-24	Lake Saroma 100 Km UltramarathonJapan*Ibaraki Pref.	100km	8:28:19 h	11.804	66/2394
2012-08-19	North Okhotsk 50 Km MarathonJapan*Ibaraki Pref.	50km	4:00:11 h	12.490	7/138
2012-09-23	Akita Nairiku 50km MarathonJapan*Ibaraki	50km	3:54:20 h	12.802	10/278
2012-10-06	Echigo Kubikino 50km UltramarathonJapan*Ibaraki Pref.	50km	4:03:00 h	12.346	17/392
2012-10-21	Noto Peninsula 100 km Ultra MarathonJapan*Ibaraki Pref.	100km	9:11:31 h	10.879	9/256
2013-01-13	Miyako 100 Km UltramarathonJapan*Ibaraki Pref.	100km	8:44:24 h	11.442	6/370
2013-03-03	Saipan MarathonUnited States	50km	4:28:24 h	11.177	5/39
2013-04-28	Okukumano 100 Km UltramarathonJapan*Ibaraki Pref.	100km	9:08:39 h	10.936	7/225
2013-05-03	Yamaguchi 100 Hagi-O-Kan Maranic 140 kmJapan*Tokyo	140km	17:42:12 h	7.908	10/269
2013-06-30	Lake Saroma 100 Km UltramarathonJapan茨城陸協	100km	8:51:40 h	11.285	97/2123
2013-08-11	North Okhotsk 50 Km MarathonJapan*Tokyo	50km	4:09:18 h	12.034	10/188
2013-09-22	Akita Nairiku 50km MarathonJapan*Ibaraki	50km	4:01:15 h	12.435	13/272
2013-10-20	Noto Peninsula 100 km Ultra MarathonJapan*Kamisu, Ibaraki Pref.	100km	9:02:44 h	11.055	11/348
2014-01-12	Miyako 100 Km UltramarathonJapan*Ibaraki Pref.	100km	8:42:34 h	11.482	8/432
2014-04-27	Okukumano 100 Km UltramarathonJapan*Ibaraki Pref.	100km	9:09:26 h	10.920	13/253
2014-06-29	Lake Saroma 100 Km UltramarathonJapan茨城陸上競技協会	100km	9:01:45 h	11.075	86/1829
2014-10-12	Echigo Kubikino 60km UltramarathonJapan*Ibaraki Pref.	60km	4:59:22 h	12.025	11/462
2015-01-11	Miyako 100 Km UltramarathonJapan*Ibaraki Pref.	100km	8:29:08 h	11.785	9/510
2015-05-17	Ishigaki Island Ultra MarathonJapan	60km	6:02:30 h	9.931	11/204
2015-06-06	Aso Caldera Super Marathon 50 kmJapan	50km	4:13:29 h	11.835	16/392
2015-06-14	Iwate Ginga 50km Marathon ChallengeJapan*Ibaraki Pref.	50km	4:22:40 h	11.421	30/349
2015-06-28	Lake Saroma 100 Km UltramarathonJapanIAU Bronzeアキ動物病院	100km	8:56:41 h	11.180	173/2721
2015-09-27	Akita Nairiku 100km MarathonJapan*Tokyo	100km	9:32:35 h	10.479	54/741
2016-01-17	Miyako 100 Km UltramarathonJapan*Ibaraki Pref.	100km	9:16:17 h	10.786	11/427
2016-03-06	Nagoura Marathon 100 KmJapan*Tokyo	100km	10:57:13 h	9.129	22/290
2016-06-26	Lake Saroma 100 Km UltramarathonJapanアキ動物病院	100km	9:28:26 h	10.555	280/2682
2016-10-09	Echigo Kubikino 60km UltramarathonJapan*Ibaraki Pref.	60km	5:23:10 h	11.140	20/472
2017-01-15	Miyako 100 Km UltramarathonJapan*Ibaraki Pref.	100km	9:44:50 h	10.259	35/393
2017-06-25	Lake Saroma 100 Km UltramarathonJapanアキ動物病院	100km	10:27:59 h	9.554	490/2311
2018-01-21	Miyako 100 Km UltramarathonJapan*Tokyo	100km	10:04:38 h	9.923	34/329
2018-03-17	Iikoto Challenge - 6hJapan	6h	67.820 km	11.303	5/36
2018-06-24	Lake Saroma 100 Km UltramarathonJapan	100km	9:41:52 h	10.312	340/2402
2018-10-20	Iki 100 Km Ultra MarathonJapanアキ動物病院	100km	10:07:48 h	9.872	35/326
2019-01-20	Miyako 100 Km UltramarathonJapan*Tokyo	100km	10:45:01 h	9.302	43/339
2019-06-30	Lake Saroma 100 Km UltramarathonJapan	100km	10:14:46 h	9.760	468/2405
2020-01-19	Miyako 100 Km UltramarathonJapan	100km	10:38:58 h	9.390	64/402
2022-10-09	Echigo Kubikino 60km UltramarathonJapan*Tokyo	60km	6:06:36 h	9.820	47/372
2023-01-22	Miyako 100 Km UltramarathonJapan	100km	11:42:16 h	8.544	51/195
2023-06-25	Lake Saroma 100 Km UltramarathonJapan	100km	11:24:20 h	8.768	716/1930
2024-01-21	Miyako 100 Km UltramarathonJapan	100km	11:26:56 h	8.734	68/201
2024-06-30	Lake Saroma 100 Km UltramarathonJapan	100km	11:04:19 h	9.032	583/1764
2024-10-13	Echigo Kubikino 50km UltramarathonJapan*Tokyo	50km	5:06:54 h	9.775	42/385
2025-01-26	Miyako 100 Km UltramarathonJapan*Tokyo	100km	11:25:59 h	8.747	40/126
2025-06-29	Lake Saroma 100 Km UltramarathonJapanIAU Bronze	100km	11:54:19 h	8.400	967/1936
2026-06-28	Lake Saroma 100 km UltramarathonJapanIAU Bronze	100km	12:09:01 h	8.230	1583/2632