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| Name: | Itou, Ritsuko | 伊藤律子 |
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| Club: | 札幌陸協 | ||
| Residence: | Hokkaido Pref. | ||
| Year of birth: | 1963 | (Cat. german: W60) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: W60) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 72044 | ||
27 search results (27 Events, 2682 km). (More)
| 2025 | 2 Events, 200 km (More) | ||||
|---|---|---|---|---|---|
| 20.07.2025 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 15:29:41 h | Itou, Ritsuko | *Hokkaido | Overall: 474 | F: 62 | Cat W60: 2 |
| 29.06.2025 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 12:06:55 h | Itou, Ritsuko | Overall: 1046 | F: 130 | Cat W60: 5 | |
| 2024 | 3 Events, 210 km (More) | ||||
| 29.09.2024 | Hokkaido Outdoor Festival In Rusutsu Mountain Marathon (JPN) | 60km | |||
| 13:22:47 h | Itou, Ritsuko | Overall: 18 | F: 4 | Cat W60: 1 | |
| 14.07.2024 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 19:23:14 h | Itou, Ritsuko | *Hokkaido | Overall: 875 | F: 145 | Cat W60: 3 |
| 14.04.2024 | AYABE Trailrun (JPN) | 50km | |||
| 9:47:20 h | Itou, Ritsuko | Overall: 262 | F: 38 | Cat W60: 2 | |
| 2023 | 4 Events, 418 km (More) | ||||
| 24.09.2023 | Muraoka 100 km Ultra Marathon (JPN) | 100km | |||
| 12:48:02 h | Itou, Ritsuko | *Hokkaido | Overall: 183 | F: 24 | Cat W55: 4 |
| 25.06.2023 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 11:29:37 h | Itou, Ritsuko | Overall: 753 | F: 85 | Cat W55: 11 | |
| 21.05.2023 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 12:57:25 h | Itou, Ritsuko | Overall: 329 | F: 29 | Cat W55: 3 | |
| 16.04.2023 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 14:09:56 h | Itou, Ritsuko | *Hokkaido | Overall: 216 | F: 30 | Cat W55: 2 |
| 2022 | 2 Events, 200 km (More) | ||||
| 12.06.2022 | Iwate Ginga 100km Marathon Challenge (JPN) | 100km | |||
| 12:15:20 h | Itou, Ritsuko | *Hokkaido | Overall: 342 | F: 33 | Cat W55: 8 |
| 22.05.2022 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 13:21:44 h | Itou, Ritsuko | Overall: 599 | F: 62 | Cat W55: 12 | |
| 2019 | 4 Events, 418 km (More) | ||||
| 20.10.2019 | River Shimanto 100km (JPN) | 100km | |||
| 12:05:05 h | Itou, Ritsuko | Overall: 472 | F: 65 | Cat W55: 6 | |
| 30.06.2019 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 11:48:30 h | Itou, Ritsuko | Overall: 1206 | F: 142 | Cat W55: 18 | |
| 21.04.2019 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 14:52:49 h | Itou, Ritsuko | Overall: 495 | F: 51 | Cat W55: 7 | |
| 20.01.2019 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 12:15:49 h | Itou, Ritsuko | *Hokkaido Pref. | Overall: 126 | F: 20 | Cat W55: 3 |
| 2018 | 2 Events, 218 km (More) | ||||
| 24.06.2018 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:51:17 h | Itou, Ritsuko | Overall: 745 | F: 85 | Cat W50: 14 | |
| 22.04.2018 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 14:23:27 h | Itou, Ritsuko | 北海道 | Overall: 287 | F: 26 | Cat W50: 3 |
| 2017 | 2 Events, 200 km (More) | ||||
| 17.12.2017 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 11:56:06 h | Itou, Ritsuko | *Hokkaido Pref. | Overall: 135 | F: 15 | Cat W50: 1 |
| 25.06.2017 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 11:04:52 h | Itou, Ritsuko | 札幌陸協 | Overall: 724 | F: 67 | Cat W50: 12 |
| 2016 | 2 Events, 218 km (More) | ||||
| 26.06.2016 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:15:08 h | Itou, Ritsuko | 札幌陸協 | Overall: 595 | F: 63 | Cat W50: 14 |
| 24.04.2016 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 12:47:19 h | Itou, Ritsuko | 札幌陸協 | Overall: 146 | F: 15 | Cat W50: 3 |
| 2015 | 1 Event, 100 km (More) | ||||
| 28.06.2015 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:44:40 h | Itou, Ritsuko | 札幌陸上競技協会 | Overall: 392 | F: 39 | Cat W50: 6 |
| 2014 | 1 Event, 100 km (More) | ||||
| 29.06.2014 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 12:13:20 h | Itou, Ritsuko | 札幌陸上競技会 | Overall: 944 | F: 132 | Cat W50: 19 |
| 2013 | 1 Event, 100 km (More) | ||||
| 30.06.2013 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:05:27 h | Itou, Ritsuko | *Hokkaido | Overall: 351 | F: 26 | Cat W45: 9 |
| 2012 | 1 Event, 100 km (More) | ||||
| 24.06.2012 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:06:33 h | Itou, Ritsuko | *Hokkaido | Overall: 387 | F: 37 | Cat W45: 4 |
| 2011 | 1 Event, 100 km (More) | ||||
| 26.06.2011 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:21:31 h | Itou, Ritsuko | *Hokkaido | Overall: 413 | F: 42 | Cat W45: 7 |
| 2009 | 1 Event, 100 km (More) | ||||
| 28.06.2009 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 9:36:44 h | Itou, Ritsuko | *Hokkaido | Overall: 250 | F: 23 | Cat W45: 4 |
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 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2009 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 9:36:44 |
12:06:55
(773/258) |
|
11:29:37
(546/159) |
|
11:48:30
(804/250) |
10:51:17
(499/139) |
11:04:52
(404/101) |
10:15:08
(265/88) |
9:44:40
(188/52) |
12:13:20
(734/243) |
10:05:27
(202/43) |
10:06:33
(214/46) |
10:21:31
(243/57) |
9:36:44
(122/37) |
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2009 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lake Saroma 100 Km Ultramarathon | 12 | 12:06:55 | 11:29:37 | 11:48:30 | 10:51:17 | 11:04:52 | 10:15:08 | 9:44:40 | 12:13:20 | 10:05:27 | 10:06:33 | 10:21:31 | 9:36:44 | ||
| Fuji 5 Lakes 118 km Challenge | 4 | 14:09:56 | 14:52:49 | 14:23:27 | 12:47:19 | ||||||||||
| OSJ Ontake 100km Ultra Trail | 2 | 15:29:41 | 19:23:14 | ||||||||||||
| Yatsugatake Nobeyama 100 km | 2 | 12:57:25 | 13:21:44 |