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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Watai, Seiichi 渡井誠一   Submit Personal Website Send Link 
Club: 八街砂嵐魂走会 
Residence: Chiba Pref.
Year of birth: 1976 (Cat. german: M50)
Date of birth: 00.00.0000 (Cat. internat.: M45)
Nationality: JPN JPN Japan
RunnerID: 1301777
 

20 search results (20 Events, 1930.5 km).  (More)

2025 5 Events, 598.5 km  (More)
12.-13.10.2025 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
14:46:13 h Watai, Seiichi 八街砂嵐魂走会  Overall: 301 M: 277 Cat M45: 67
05.-06.07.2025 Shiga Kogen 100 (JPN) 100km
19:29:24 h Watai, Seiichi 八街砂嵐魂走会  Overall: 72 M: 62 Cat M45: 14
30.05.-01.06.2025 Tokyo Grand Trail - 100mi (JPN) 160km
47:22:11 h Watai, Seiichi   Overall: 68 M: 57 Cat M45: 19
25.-26.04.2025 Ultra-Trail Mt. Fuji (UTMF) (JPN) 167km
33:30:52 h Watai, Seiichi 八街砂嵐魂走会  Overall: 280 M: 257 Cat M45: 63
09.03.2025 Ibaraki 100k Ultra Marathon (JPN) 100km
10:53:51 h Watai, Seiichi   Overall: 122 M: 111 Cat M45: 20
2024 5 Events, 550 km  (More)
22.12.2024 Coast to Coast Boso hanto (JPN) 70km
9:49:21 h Watai, Seiichi   Overall: 95 M: 82 Cat M45: 18
22.-23.09.2024 SkyViewTrail Memorial Cup (JPN) 138km
31:31:20 h Watai, Seiichi   Overall: 73 M: 66 Cat M45: 15
25.08.2024 Tsukuba Renjyo 70 Km Road & Trail Run (JPN) 75km
12:03:34 h Watai, Seiichi 八街砂嵐魂走会  Overall: 75 M: 67 Cat M45: 17
19.05.2024 Yatsugatake Nobeyama 100 km (JPN) 100km
11:53:32 h Watai, Seiichi   Overall: 246 M: 227 Cat M45: 40
26.-27.04.2024 Ultra-Trail Mt. Fuji (UTMF) (JPN) 167km
34:31:11 h Watai, Seiichi 八街砂嵐魂走会  Overall: 285 M: 260 Cat M45: 62
2023 4 Events, 310.5 km  (More)
10.12.2023 Izu Trail Journey (JPN) 70km
9:35:51 h Watai, Seiichi 八街砂嵐魂走会  Overall: 209 M: 192 Cat M45: 44
08.-09.10.2023 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
12:00:06 h Watai, Seiichi 八街砂嵐魂走会  Overall: 214 M: 200 Cat M45: 36
10.-11.06.2023 Okushinano 100 (JPN) 100km
15:32:47 h Watai, Seiichi 八街砂嵐魂走会  Overall: 118 M: 106 Cat M45: 20
22.-23.04.2023 KAI 69k (JPN) 69km
10:42:54 h Watai, Seiichi 八街砂嵐魂走会  Overall: 78 M: 65 Cat M45: 10
2022 3 Events, 221.5 km  (More)
09.-10.10.2022 Hasetsune Cup - Japan Mountain Endurance Race (JPN) 71.5km
14:28:16 h Watai, Seiichi 八街砂嵐魂走会  Overall: 344 M: 312 Cat M45: 68
22.05.2022 Tokyo Shibamata 100 km (JPN) 100km
11:00:33 h Watai, Seiichi   Overall: 184 M: 169 Cat M45: 40
29.04.2022 Ishioka Trail Run (JPN) 50km
5:44:37 h Watai, Seiichi   Overall: 28 M: 27 Cat M45: 3
2021 2 Events, 150 km  (More)
09.10.2021 Tokyo Shibamata 100 km (JPN) 100km
13:07:03 h Watai, Seiichi   Overall: 187 M: 166 Cat M40: 25
25.04.2021 Ishioka Trail Run (JPN) 50km
5:05:32 h Watai, Seiichi   Overall: 23 M: 23 Cat M40: 5
2019 1 Event, 100 km  (More)
19.05.2019 Tokyo Shibamata 100 km (JPN) 100km
12:45:21 h Watai, Seiichi   Overall: 830 M: 767 Cat M40: 117

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 2019
100km 11:00:33  
 
 
11:00:33
(1899/330) 		13:07:03
(1771/166) 		12:45:21
(6849/3453)

Comparison table

Comparison of performances in races with multiple participations

   2025 2024 2023 2022 2021 2019
Tokyo Shibamata 100 km 3       11:00:33 13:07:03 12:45:21
Hasetsune Cup - Japan Mountain Endurance Race 3 14:46:13   12:00:06 14:28:16    
Ishioka Trail Run 2       5:44:37 5:05:32  
Ultra-Trail Mt. Fuji (UTMF) 2 33:30:52 34:31:11