Michiaki (宗倫旭) So
Born : 1965 Cat. M60 Ultrarunner since 2013 JPN
27
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
47
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
1
Countries visited ?JPNJapan
55,4%
Rank quotient ?This runner's calculation uses 27 eligible race(s): Σ(rank − 1) = 10 739; Σ finishers = 19 388. 10 739 / 19 388 × 100 = 55.39%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed27
Km — ultra races2 708 km
> 100 km10
> 160 km6
Longest race200,0 km

Km per year (ultra races)

393
4 races
2022
630
4 races
2023
338
3 races
2024
336
3 races
2025
2026

Race types (share of distance)

Road22,2%
Trail77,8%

HISTORY

27 race(s)
DateRacePerf.Rk
2025
07.12 52km JPN11th Kumano Old Trails 7:54:42 h53
10.10 169km JPN5th Lake Biwa 100 2d 02:42:32 h232
10.05 115.1km JPN3rd Aso Volcano Trail 24:39:34 h347
2024
08.12 70km JPN11th Izu Trail Journey 13:26:34 h1182
08.06 100.8km JPN4th Okushinano 100 18:26:20 h309
26.04 167km JPN9th Ultra-Trail Mt. Fuji 37:14:16 h479
2023
16.09 162.6km JPN15th Shinetsu Five Mountains Trail 100 mile 32:48:51 h247
08.07 100km JPN1st Shiga Kogen 100 22:33:11 h193
21.04 167km JPN8th Ultra-Trail Mt. Fuji 42:24:16 h1379
11.03 200km JPN13th Little Edo Oedo 200k 32:29:59 h93
2022
11.12 70km JPN9th Izu Trail Journey 9:33:53 h208
20.11 106km JPN8th FunTrails100K Round 27:36:45 h342
11.06 50km JPN2nd Okushinano 100 - 50 km 9:14:22 h139
22.04 167km JPN7th Ultra-Trail Mt. Fuji 34:41:23 h557
2020
13.12 66km JPN7th Izu Trail Journey 10:13:37 h439
2019
07.10 100km JPN1st Fuji 4 Lakes 100 km Autumn Challenge 11:52:11 h159
15.09 110km JPN11th Shinetsu Five Mountains Trail 110km 21:08:56 h233
13.07 65km JPN10th Nozawa Onsen 4100D Mountain Trail 11:38:48 h136
2018
16.12 68km JPNCoast to Coast 70k Trail Run 11:20:58 h421
07.10 71.5km JPN26th Hasetsune Cup - Japan Mountain Endurance Race 17:50:44 h704
22.09 75km JPN5th SkyView Ultra-Trail 60 - Yamada Noboru Memorial Cup 15:25:42 h74
03.06 100km JPN6th Tokyo Shibamata 100 km 13:46:39 h937
2017
17.12 68km JPNCoast to Coast 70k Trail Run 10:28:06 h222
01.07 45km JPN7th Utsukushigahara 45 km Trail Run 8:20:52 h283
2015
26.09 76.7km JPN4th Shizuoka to Yamanashi 16:24:31 h327
19.07 66km JPN2nd SkyView Ultra-Trail 60 - Yamada Noboru Memorial Cup 14:44:25 h65
2013
01.06 100km JPN1st Tokyo Shibamata 100 km 13:30:53 h1006