Ayako (村井絢子) Murai
Born : 1982 Cat. W40 Ultrarunner since 2010 JPN
71
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
85
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
6
Countries visited ?FRAFranceHKGHong KongITAItalyJPNJapanKORSouth KoreaUSAUnited States
23,4%
Rank quotient ?This runner's calculation uses 119 eligible race(s): Σ(rank − 1) = 13 187; Σ finishers = 56 385. 13 187 / 56 385 × 100 = 23.39%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed119
Km — ultra races13 886 km
> 100 km42
> 160 km33
> 200 km10
> 24h5
Longest race496,6 km

Km per year (ultra races)

1 886
12 races
2022
2 111
14 races
2023
1 390
11 races
2024
1 525
12 races
2025
1 415
8 races
2026

Race types (share of distance)

Road7,8%
Trail92,2%

Wins & podiums (ultra)

🏆 Win6
🏆 Win F21
🏅 Top 311
🏅 Top 3 F40
Longest winning streak2
Current streak0

HISTORY

119 race(s)
DateRacePerf.Rk
2026
07.08 206mi USA12th Bigfoot 200 Endurance Run 3d 08:06:26 h41
26.06 165km JPN5th Deep Japan Ultra 100 - 165 km 40:41:13 h23
20.06 105km JPN2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance100 17:04:05 h56
14.06 50km JPN9th Sapporo Teine Trail 7:28:47 h30
24.04 167km JPN11th Ultra-Trail Mt. Fuji 31:08:26 h180
28.03 308.6mi USA2nd Arizona Monster 300 5d 09:41:45 h25
21.03 50km USA15th Redwood (Spring) 50 km Trail Run 5:30:04 h8
03.01 50km USA5th Hacienda Hills Run - Winter 7:41:18 h2 🥈
2025
31.12 24h USA15th New Years One Day 24 Hour Run 180.970 km1 🏆
14.12 70km JPN12th Izu Trail Journey 10:44:40 h274
12.10 100mi JPN11th OSJ Koumi 100 30:16:03 h27
28.09 80km JPN18th Hokkaido Outdoor Festival In Rusutsu Mountain Marathon 12:06:12 h3 🥉
08.08 206mi USA11th Bigfoot 200 Endurance Run 3d 07:50:15 h53
02.08 50km USA14th Rodeo Valley 50 km Trail Run 5:36:51 h29
20.07 65km JPN16th Nozawa Onsen 4100D Mountain Trail 9:41:53 h13
27.06 165km JPN4th Deep Japan Ultra 100 - 165 km 38:22:46 h18
25.06 50km JPN8th Sapporo Teine Trail 7:21:57 h31
21.06 105km JPN1st Kaga Spa by UTMB - Kaga Spa Trail Endurance100 19:55:21 h73
17.05 100km KOR7th TNF 100 Korea 16:11:36 h25
25.04 167km JPN10th Ultra-Trail Mt. Fuji 32:15:35 h223
2024
29.09 80km JPN17th Hokkaido Outdoor Festival In Rusutsu Mountain Marathon 12:24:13 h7
24.08 100mi USA4th Oregon Cascades 100 Mile Race 26:57:30 h84
09.08 206mi USA10th Bigfoot 200 Endurance Run 2d 20:12:54 h29
14.07 65km JPN15th Nozawa Onsen 4100D Mountain Trail 9:41:46 h38
21.06 165km JPN3rd Deep Japan Ultra 100 - 165 km 38:28:40 h17
16.06 50km JPN7th Sapporo Teine Trail 7:00:43 h23
24.05 160km JPN3rd Tokyo Grand Trail - 100mi 38:57:20 h19
26.04 167km JPN9th Ultra-Trail Mt. Fuji 32:40:13 h191
30.03 80km JPN4th Tama River Clear Stream Marathon 80km 7:03:32 h1 🏆
09.03 50mi USA12th Marin Ultra Challenge 50 Mile Race 9:51:01 h20
06.01 50km USA3rd Hacienda Hills Run - Winter 6:06:34 h1 🏆
2023
31.12 24h USA13th New Years One Day 24 Hour Run 190.941 km1 🏆
10.12 70km JPN10th Izu Trail Journey 9:38:50 h218
18.11 106km JPN9th FunTrails100K Round 19:57:51 h52
04.11 112km JPN3rd OSJ Kami 100 17:53:20 h21
07.10 100mi JPN9th OSJ Koumi 100 34:16:44 h48
24.09 80km JPN16th Hokkaido Outdoor Festival In Rusutsu Mountain Marathon 13:34:58 h6
10.09 50km JPN12th Hakuba Int. Trail Run 6:45:36 h25
11.08 206mi USA9th Bigfoot 200 Endurance Run 3d 17:23:41 h57
16.07 65km JPN14th Nozawa Onsen 4100D Mountain Trail 9:30:15 h22
23.06 165km JPN2nd Deep Japan Ultra 100 - 165 km 42:25:53 h28
11.06 50km JPN6th Sapporo Teine Trail 7:04:21 h15
26.05 160km JPN2nd Tokyo Grand Trail - 100mi 47:21:52 h26
01.05 250mi USA3rd Cocodona 250 Mile Race 4d 17:29:23 h99
21.04 167km JPN8th Ultra-Trail Mt. Fuji 31:38:06 h254
2022
31.12 24h USA12th New Years One Day 24 Hour Run 185.203 km1 🏆
11.12 70km JPN9th Izu Trail Journey 9:22:10 h167
20.11 106km JPN8th FunTrails100K Round 21:40:20 h88
05.11 100km JPN2nd OSJ Kami 100 20:12:05 h44
07.10 238mi USA6th Moab 240 Endurance Run 3d 23:31:53 h53
04.09 50km JPN11th Hakuba Int. Trail Run 7:00:26 h61
12.08 206mi USA8th Bigfoot 200 Endurance Run 3d 18:22:44 h54
17.07 65km JPN13th Nozawa Onsen 4100D Mountain Trail 9:52:16 h37
17.06 202mi USA7th Tahoe 200 Mile Endurance Run 3d 20:44:37 h89
04.06 100km JPN2nd Minakami Trail Race - 100km 20:24:02 h11
10.04 70km JPN7th Okumikawa Power Trail 10:48:42 h67
29.01 100km JPN1st Nara Ishibutai 100 22:03:01 h27
2021
12.12 69.1km JPN8th Izu Trail Journey 9:03:49 h164
20.11 106km JPN7th FunTrails100K Round 19:54:35 h69
13.11 100km JPN5th Sengenyama 100 30:09:00 h12
06.11 100km JPN1st OSJ Kami 100 17:07:48 h37
02.10 100km JPN1st Minakami Trail Race - 100km 21:36:28 h8
28.08 75km JPN1st Okushinano 100 - 75 km 11:34:57 h64
23.07 65km JPN12th Nozawa Onsen 4100D Mountain Trail 9:01:59 h53
2020
13.12 66km JPN7th Izu Trail Journey 8:46:27 h168
2019
31.12 24h USA10th New Years One Day 24 Hour Run 177.349 km2 🥈
08.12 71.7km JPN6th Izu Trail Journey 8:30:43 h114
14.09 100mi JPN11th Shinetsu Five Mountains Trail 100 mile 27:52:45 h88
30.08 171km FRA17ème Ultra Trail Tour du Mont Blanc 41:51:10 h842
28.07 70km JPN7th Mt. Taisetsu Trail Journey 10:48:45 h42
13.07 65km JPN10th Nozawa Onsen 4100D Mountain Trail 9:20:12 h27
23.06 72.6km JPN6. Spatrail - Shima to Kusatsu 72K 9:51:06 h80
05.05 50km USA9th Horseshoe Lake 50 km Trail Run 5:44:11 h5
09.03 50mi USA8th Marin Ultra Challenge 50 Mile Race 9:24:25 h37
2018
15.12 100km HKG6th The North Face 100 Hong Kong 18:09:28 h61
03.11 65km JPN1st Top of Trail Runner in Japan - 65km 7:12:28 h5
07.10 71.5km JPN26th Hasetsune Cup - Japan Mountain Endurance Race 12:17:48 h117
15.09 100mi JPN10th Shinetsu Five Mountains Trail 100 mile 29:20:54 h124
10.08 206mi USA4th Bigfoot 200 Endurance Run 3d 21:20:09 h67
24.06 72.7km JPN5. Spatrail - Shima to Kusatsu 10:00:38 h63
27.04 170km JPN5th Ultra-Trail Mt. Fuji 35:05:10 h206
2017
18.11 50mi USA11th Endurance Challenge - California Trail 50 Mile 10:26:14 h219
12.11 50km JPN9th Kanna Mountain Run 7:25:18 h26
08.10 71.5km JPN25th Hasetsune Cup - Japan Mountain Endurance Race 11:41:09 h139
16.09 102km JPN9th Shinetsu Five Mountains Trail 100 mile 15:09:45 h52
15.07 100km JPN10th OSJ Ontake 100km Ultra Trail 12:05:36 h57
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 12:18:49 h327
06.05 50km USA7th Horseshoe Lake 50 km Trail Run 5:22:47 h2 🥈
05.03 50km JPN8th OSJ Jungle Trail 50K Amami 5:29:31 h24
2016
29.12 24h USA7th New Years One Day 24 Hour Run 171.395 km1 🏆
10.12 100km HKG4th The North Face 100 Hong Kong 19:51:08 h52
09.10 71.5km JPN24th Hasetsune Cup - Japan Mountain Endurance Race 11:54:05 h182
13.08 50km USA7th Redwood Summer Trail Run 6:33:28 h10
07.05 50km USA6th Horseshoe Lake 50 km Trail Run 5:44:32 h2 🥈
20.02 50km USA6th Chabot Trail Run 5:21:05 h10
06.02 50km USA6th Golden Gate 50 km Winter Trail Run 6:01:18 h14
30.01 50km USA10th Fremont Fat Ass 50k 4:48:00 h7
2015
05.12 50mi USA9th Endurance Challenge - California Trail 50 Mile 10:56:12 h275
20.09 50km USA5th Coastal 50 km Trail Run 6:31:33 h14
30.08 50km USA6th Diablo 50 km Trail Run 6:04:47 h7
20.06 50km USA5th Canyon Meadow (Spring) 50 km Trail Run 5:13:44 h7
30.05 50mi USA3rd San Francisco 50 Mile Endurance Run 9:44:16 h14
15.03 72km JPN2nd Izu Trail Journey 10:43:02 h254
2014
09.11 50km JPN6th Kanna Mountain Run 8:14:52 h36
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 12:28:14 h395
29.08 168km FRA12ème Ultra Trail Tour du Mont Blanc 41:59:28 h895
25.04 100mi JPN3rd Ultra-Trail Mt. Fuji 38:52:49 h313
2013
14.12 100km HKG1st The North Face 100 Hong Kong 21:25:13 h98
10.11 50km JPN5th Kanna Mountain Run II 8:30:03 h71
13.10 71.5km JPN21st Hasetsune Cup - Japan Mountain Endurance Race 13:10:43 h436
31.08 70km JPN3rd Utsukushigahara 70 km Trail Run 13:31:34 h176
26.04 100mi JPN2nd Ultra-Trail Mount Fuji 36:50:38 h265
10.03 72km JPN1st Izu Trail Journey 11:13:42 h452
2012
07.10 71.5km JPN20th Hasetsune Cup - Japan Mountain Endurance Race 14:24:43 h642
31.08 86km ITA7ème Courmayeur-Champex-Chamonix 19:17:06 h796
19.05 82km JPN1st Shizuoka to Yamanashi 16:14:36 h164
2011
09.10 71.5km JPN19th Hasetsune Cup - Japan Mountain Endurance Race 14:45:20 h552
24.09 50km JPN3rd Hokkaido Outdoor Festival 50 km Run 9:46:18 h52
2010
10.10 71.5km JPN18th Hasetsune Cup - Japan Mountain Endurance Race 16:43:02 h677