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| Name: | Serizawa, Kanji | 芹沢完二 |
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| Club: | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | ||
| Residence: | Toda City, Saitama Pref. | ||
| Year of birth: | 1954 | (Cat. german: M70) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M70) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 178419 | ||
72 search results (72 Events, 11179.119 km). (More)
| 2025 | 5 Events, 1007.171 km (More) | ||||
|---|---|---|---|---|---|
| 15.-16.11.2025 | Autumn leaves in Okumusashi / Chichibu Journey run (JPN) | 142km | |||
| 27:02:23 h | Serizawa, Kanji | *Saitama Pref. | Overall: 158 | M: 128 | Cat M70: 3 |
| 19.10.2025 | Ultramarathon Okumusashi (JPN) | 70km | |||
| 10:39:04 h | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 482 | M: 390 | Cat M70: 3 |
| 23.-25.05.2025 | Hirosaki 48h Ultra Run (JPN) | 48h | |||
| 208.171 km | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 19 | M: 15 | Cat M70: 1 |
| 30.04.-05.05.2025 | River Road Foot Race 514 Km (JPN) | 516km | |||
| 5d 11:46:52 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 86 | M: 69 | Cat M70: 1 |
| 30.03.2025 | Modern Japanese Silk Road Journey Run - Stage 2 (JPN) | 71km | |||
| 14:06:43 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 96 | M: 71 | Cat M70: 1 |
| 2024 | 6 Events, 1129.52 km (More) | ||||
| 16.-17.11.2024 | Mito Kaido Journey run (JPN) | 130km | |||
| 25:29:10 h | Serizawa, Kanji | *Saitama Pref. | Overall: 133 | M: 108 | Cat M65: 8 |
| 20.10.2024 | Ultramarathon Okumusashi (JPN) | 70km | |||
| 10:37:24 h | Serizawa, Kanji | *Saitama Pref. | Overall: 630 | M: 497 | Cat M65: 23 |
| 20.-22.05.2024 | Hirosaki 48h Ultra Run (JPN) | 48h | |||
| 201.520 km | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 13 | M: 10 | Cat M65: 1 |
| 30.04.-05.05.2024 | River Road Foot Race 514 Km (JPN) | 514km | |||
| 5d 11:58:09 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 90 | M: 68 | Cat M65: 3 |
| 06.-07.04.2024 | Yagurazawa Round Trip Pre-Tournament (JPN) | 160km | |||
| 33:24:26 h | Serizawa, Kanji | 武藏ウルトラマラソンクラブ | Overall: 100 | M: 84 | Cat M65: 2 |
| 17.03.2024 | Arakawa Riverside Journey Stage Race - Stage 2 (JPN) | 54.2km | |||
| 9:01:09 h | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 127 | M: 88 | Cat M65: 6 |
| 2023 | 3 Events, 709 km (More) | ||||
| 15.-16.07.2023 | Michinoku Tsugaru Journey Run 150K (JPN) | 142km | |||
| 28:50:00 h | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 56 | M: 45 | Cat M65: 10 |
| 30.04.-05.05.2023 | River Road Foot Race 513 Km (JPN) | 513km | |||
| 5d 11:51:13 h | Serizawa, Kanji | Overall: 82 | M: 69 | Cat M65: 2 | |
| 19.03.2023 | Arakawa Riverside Journey Stage Race - Stage 2 (JPN) | 54.2km | |||
| 8:32:35 h | Serizawa, Kanji | *Saitama Pref. | Overall: 109 | M: 83 | Cat M65: 6 |
| 2022 | 6 Events, 1032.4 km (More) | ||||
| 15.-16.10.2022 | Yagurazawa Round Trip Pre-Tournament (JPN) | 150km | |||
| 31:38:38 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 75 | M: 60 | Cat M65: 2 |
| 03.-04.09.2022 | Tone River Run Up Journey Run Upstream (JPN) | 121km | |||
| 26:34:14 h | Serizawa, Kanji | Overall: 62 | M: 51 | Cat M65: 4 | |
| 05.06.2022 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 11:19:11 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 765 | M: 608 | Cat M65: 17 |
| 30.04.-05.05.2022 | River Road Foot Race 513 Km (JPN) | 513km | |||
| 5d 11:42:31 h | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 79 | M: 61 | Cat M65: 2 |
| 22.03.2022 | Arakawa Riverside Journey - 55.4 km (JPN) | 55.4km | |||
| 8:37:00 h | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 38 | M: 31 | Cat M65: 2 |
| 12.-13.03.2022 | Oedo Night run 115k (JPN) | 115km | |||
| 18:52:14 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 82 | M: 64 | Cat M65: 1 |
| 2021 | 5 Events, 911 km (More) | ||||
| 16.-17.10.2021 | Tone River Run Up Journey Run Upstream (JPN) | 120km | |||
| 25:08:00 h | Serizawa, Kanji | *Saitama Pref. | Overall: 81 | M: 65 | Cat M65: 6 |
| 17.-18.07.2021 | Nakasendo Ultra (JPN) | 117km | |||
| 29:05:00 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 51 | M: 42 | Cat M65: 3 |
| 30.04.-05.05.2021 | River Road Foot Race 503 Km (JPN) | 503km | |||
| 5d 11:23:25 h | Serizawa, Kanji | Overall: 66 | M: 57 | Cat M65: 4 | |
| 04.04.2021 | Arakawa Riverside Journey - 56 km (JPN) | 56km | |||
| 8:35:00 h | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 42 | M: 34 | Cat M65: 1 |
| 27.-28.03.2021 | Oedo Night run 115k (JPN) | 115km | |||
| 18:54:10 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 67 | M: 51 | Cat M65: 1 |
| 2020 | 2 Events, 261 km (More) | ||||
| 24.-25.10.2020 | Autumn leaves in Okumusashi / Chichibu Journey run (JPN) | 146km | |||
| 25:59:09 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 200 | M: 173 | Cat M65: 3 |
| 22.-23.02.2020 | Oedo Night run 115k (JPN) | 115km | |||
| 18:53:30 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 135 | M: 91 | Cat M65: 2 |
| 2019 | 4 Events, 424 km (More) | ||||
| 13.-15.07.2019 | Michinoku Tsugaru Journey Run 177K (JPN) | 177km | |||
| 36:48:42 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 123 | M: 101 | Cat M60: 9 |
| 02.06.2019 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 11:54:34 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 1501 | M: 1204 | Cat M60: 77 |
| 17.03.2019 | Arakawa Riverside Journey Stage Race - Stage 2 (JPN) | 56km | |||
| 8:11:10 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 97 | M: 77 | Cat M60: 9 |
| 23.-24.02.2019 | Oedo Night run 113k (JPN) | 113km | |||
| 18:55:26 h | Serizawa, Kanji | Mumc | Overall: 132 | M: 88 | Cat M60: 7 |
| 2018 | 1 Event, 78 km (More) | ||||
| 03.06.2018 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 11:45:32 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 1323 | M: 1041 | Cat M60: 59 |
| 2017 | 3 Events, 646.69 km (More) | ||||
| 01.07.2017 | 8-Hour Endurance Race Tokorozawa (JPN) | 8h | |||
| 48.690 km | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 299 | M: 239 | Cat M60: 6 |
| 04.06.2017 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 11:23:48 h | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 1324 | M: 1049 | Cat M60: 58 |
| 30.04.-05.05.2017 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 5d 14:04:00 h | Serizawa, Kanji | Overall: 94 | M: 84 | Cat M60: 7 | |
| 2016 | 5 Events, 801.936 km (More) | ||||
| 19.11.2016 | FunTrails50K Two Lakes&Green line (JPN) | 52km | |||
| 11:29:10 h | Serizawa, Kanji | 武蔵umc | Overall: 375 | M: 317 | Cat M60: 8 |
| 16.07.2016 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 19:42:56 h | Serizawa, Kanji | *Saitama Pref. | Overall: 855 | M: 741 | Cat M60: 11 |
| 02.07.2016 | 8-Hour Endurance Race Tokorozawa (JPN) | 8h | |||
| 51.936 km | Serizawa, Kanji | 武蔵ウルトラマラソンクブ | Overall: 192 | M: 161 | Cat M60: 5 |
| 05.06.2016 | Ultramarathon Okumusashi (JPN) | 78km | |||
| 11:15:15 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 1262 | M: 1012 | Cat M60: 55 |
| 30.04.-05.05.2016 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 5d 11:50:47 h | Serizawa, Kanji | Overall: 89 | M: 78 | Cat M60: 5 | |
| 2015 | 4 Events, 699.102 km (More) | ||||
| 21.10.2015 | FunTrails50K Two Lakes&Green line (JPN) | 56km | |||
| 12:49:29 h | Serizawa, Kanji | Overall: 354 | M: 296 | Cat M60: 5 | |
| 12.07.2015 | 8-Hour Endurance Race Tokorozawa (JPN) | 8h | |||
| 46.102 km | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 263 | M: 195 | Cat M60: 7 |
| 22.06.2015 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 11:14:58 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 1263 | M: 1034 | Cat M60: 57 |
| 30.04.-05.05.2015 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 5d 11:58:08 h | Serizawa, Kanji | Overall: 63 | M: 58 | Cat M60: 7 | |
| 2014 | 4 Events, 787.182 km (More) | ||||
| 14.-15.09.2014 | Karisakatoge beyond Chichibu Run (JPN) | 142km | |||
| 25:45:41 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 194 | M: 173 | Cat M55: 17 |
| 06.07.2014 | 8-Hour Endurance Race Tokorozawa (JPN) | 8h | |||
| 55.182 km | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 242 | M: 183 | Cat M55: 15 |
| 30.04.-05.05.2014 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 5d 11:53:39 h | Serizawa, Kanji | Overall: 46 | M: 40 | Cat M55: 6 | |
| 12.04.2014 | Toda Saiko 70 km (JPN) | 70km | |||
| 8:37:32 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 361 | M: 309 | Cat M55: 29 |
| 2013 | 6 Events, 990.19 km (More) | ||||
| 13.-14.10.2013 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 21:49:34 h | Serizawa, Kanji | Overall: 1961 | M: 1738 | Cat M55: 62 | |
| 28.07.2013 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 11:19:03 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 1174 | M: 910 | Cat M55: 103 |
| 07.07.2013 | 8-Hour Endurance Race Tokorozawa (JPN) | 8h | |||
| 48.690 km | Serizawa, Kanji | 武蔵ｳﾙﾄﾗﾏﾗｿﾝｸﾗﾌﾞ | Overall: 201 | M: 147 | Cat M55: 9 |
| 30.04.-05.05.2013 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 5d 11:52:53 h | Serizawa, Kanji | Overall: 45 | M: 43 | Cat M55: 7 | |
| 13.04.2013 | Toda Saiko 70 km (JPN) | 70km | |||
| 8:31:43 h | Serizawa, Kanji | 武蔵ウルトラマラソンクラブ | Overall: 266 | M: 240 | Cat M55: 21 |
| 02.-03.03.2013 | Little Edo Oedo 200k (JPN) | 203km | |||
| 35:03:00 h | Serizawa, Kanji | *Saitama Pref. | Overall: 113 | M: 100 | Cat M55: 8 |
| 2012 | 5 Events, 570.428 km (More) | ||||
| 05.08.2012 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 11:03:01 h | Serizawa, Kanji | *Saitama Pref. | Overall: 860 | M: 692 | Cat M55: 70 |
| 15.07.2012 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 17:49:06 h | Serizawa, Kanji | *Saitama Pref. | Overall: 647 | M: 592 | Cat M55: 27 |
| 08.07.2012 | 8-Hour Endurance Race Tokorozawa (JPN) | 8h | |||
| 58.428 km | Serizawa, Kanji | *Saitama Pref. | Overall: 204 | M: 143 | Cat M55: 14 |
| 30.04.-02.05.2012 | River Road Foot Race 265 Km (JPN) | 265km | |||
| 2d 10:36:00 h | Serizawa, Kanji | Overall: 16 | M: 16 | Cat M55: 1 | |
| 07.04.2012 | Toda Saiko 70 km (JPN) | 70km | |||
| 8:19:00 h | Serizawa, Kanji | *Saitama Pref. | Overall: 157 | M: 145 | Cat M55: 9 |
| 2011 | 3 Events, 248.5 km (More) | ||||
| 09.-10.10.2011 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 21:24:05 h | Serizawa, Kanji | チームヒロ | Overall: 1484 | M: 1330 | Cat M55: 51 |
| 07.08.2011 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 11:13:44 h | Serizawa, Kanji | *Saitama Pref. | Overall: 961 | M: 743 | Cat M55: 84 |
| 17.07.2011 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 19:04:27 h | Serizawa, Kanji | *Saitama Pref. | Overall: 412 | M: 377 | Cat M55: 12 |
| 2009 | 6 Events, 588 km (More) | ||||
| 19.-20.09.2009 | Karisakatoge beyond Chichibu Run (JPN) | 143km | |||
| 27:01:00 h | Serizawa, Kanji | チームヒロ | Overall: 125 | M: 114 | Cat M50: 17 |
| 02.08.2009 | Ultramarathon Okumusashi (JPN) | 75km | |||
| 10:33:59 h | Serizawa, Kanji | *Saitama Pref. | Overall: 788 | M: 640 | Cat M50: 95 |
| 19.07.2009 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 19:31:58 h | Serizawa, Kanji | *Saitama Pref. | Overall: 370 | M: 341 | Cat M50: 32 |
| 14.06.2009 | Iwate Ginga 100km Marathon Challenge (JPN) | 100km | |||
| 13:45:01 h | Serizawa, Kanji | *Saitama | Overall: 382 | M: 348 | Cat M50: 55 |
| 26.04.2009 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:49:40 h | Serizawa, Kanji | チームヒロ | Overall: 559 | M: 477 | Cat M50: 43 |
| 11.04.2009 | Toda Saiko 70 km (JPN) | 70km | |||
| 8:28:10 h | Serizawa, Kanji | *Saitama Pref. | Overall: 127 | M: 111 | Cat M50: 8 |
| 2008 | 2 Events, 145 km (More) | ||||
| 03.08.2008 | Ultramarathon Okumusashi (JPN) | 75km | |||
| 10:57:32 h | Serizawa, Kanji | チームヒロ | Overall: 674 | M: 557 | Cat M50: 104 |
| 12.04.2008 | Toda Saiko 70 km (JPN) | 70km | |||
| 8:42:56 h | Serizawa, Kanji | *Saitama Pref. | Overall: 132 | M: 117 | Cat M50: 20 |
| 2007 | 1 Event, 75 km (More) | ||||
| 05.08.2007 | Ultramarathon Okumusashi (JPN) | 75km | |||
| 11:22:22 h | Serizawa, Kanji | チーム ヒロ | Overall: 673 | M: 546 | Cat M50: 104 |
| 2006 | 1 Event, 75 km (More) | ||||
| 13.08.2006 | Ultramarathon Okumusashi (JPN) | 75km | |||
| 11:11:53 h | Serizawa, Kanji | Overall: 622 | M: 512 | Cat M50: 95 | |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2009 | 2008 | 2007 | 2006 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 48h | 208.171 |
208.171
(343/26) |
201.520
(237/20) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2009 | 2008 | 2007 | 2006 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ultramarathon Okumusashi | 15 | 10:39:04 | 10:37:24 | 11:19:11 | 11:54:34 | 11:45:32 | 11:23:48 | 11:15:15 | 11:14:58 | 11:19:03 | 11:03:01 | 11:13:44 | 10:33:59 | 10:57:32 | 11:22:22 | 11:11:53 | ||||
| River Road Foot Race 520 Km | 10 | 131:46:52 | 131:58:09 | 131:51:13 | 131:42:31 | 131:23:25 | 134:04:00 | 131:50:47 | 131:58:08 | 131:53:39 | 131:52:53 | |||||||||
| 8-Hour Endurance Race Tokorozawa | 6 | 48.690 | 51.936 | 46.102 | 55.182 | 48.690 | 58.428 | |||||||||||||
| Toda Saiko 70 km | 5 | 8:37:32 | 8:31:43 | 8:19:00 | 8:28:10 | 8:42:56 | ||||||||||||||
| Oedo Night run 113k | 4 | 18:52:14 | 18:54:10 | 18:53:30 | 18:55:26 | |||||||||||||||
| OSJ Ontake 100km Ultra Trail | 4 | 19:42:56 | 17:49:06 | 19:04:27 | 19:31:58 | |||||||||||||||
| Yagurazawa Round Trip Pre-Tournament | 2 | 33:24:26 | 31:38:38 | |||||||||||||||||
| Hirosaki 48h Ultra Run | 2 | 208.171 | 201.520 | |||||||||||||||||
| Tone River Run Up Journey Run Upstream | 2 | 26:34:14 | 25:08:00 | |||||||||||||||||
| Autumn leaves in Okumusashi / Chichibu Journey run | 2 | 27:02:23 | 25:59:09 | |||||||||||||||||
| Arakawa Riverside Journey - 56 km | 2 | 8:37:00 | 8:35:00 | |||||||||||||||||
| FunTrails50K Two Lakes&Green line | 2 | 11:29:10 | 12:49:29 | |||||||||||||||||
| Karisakatoge beyond Chichibu Run | 2 | 25:45:41 | 27:01:00 | |||||||||||||||||
| Michinoku Tsugaru Journey Run 177K | 2 | 28:50:00 | 36:48:42 | |||||||||||||||||
| Hasetsune Cup - Japan Mountain Endurance Race | 2 | 21:49:34 | 21:24:05 |