Emi (中塚絵美) Nakatsuka
ID 604238
Born : 1968 Cat. W55 Ultrarunner since 2014 JPN
32
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
43
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
2
Countries visited ?JPNJapanKORSouth Korea
35,1%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 4 752; Σ finishers = 13 543. 4 752 / 13 543 × 100 = 35.09%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 360 km
> 100 km5
> 160 km1
Longest race170,0 km
5th Ultra-Trail Mt. Fuji (UTMF) — 27/4/2018

Km per year (ultra races)

2022
56
1 race
2023
112
2 races
2024
2025
2026

Race types (share of distance)

Road28,1%
Trail71,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0

Records

50 km5h47'18100 km10h45'44

HISTORY

32 race(s)
DateRacePerf.Rk
2024
20.10 56km JPN31th Mt. Rocco Cannonball Run - 56 km Speed 7:52:00 h35
31.03 56km JPN30th Mt. Rocco Cannonball Run - 56 km Speed 9:38:00 h134
2023
22.10 56km JPN29th Mt. Rocco Cannonball Run - 56 km Speed 11:20:00 h299
2020
08.02 50km JPN11th OSJ Jungle Trail 50K Amami 6:40:41 h52
2019
19.10 56km JPN21th Mt. Rocco Cannonball Run - 56 km Night Speed 10:03:00 h31
2018
17.06 100km JPN13. Okinoshima 100km Ultra Marathon 11:58:38 h106
12.05 108.7km JPN2nd Aso Round Trail 20:32:30 h52
27.04 170km JPN5th Ultra-Trail Mt. Fuji 37:01:46 h281
21.04 58km KOR4th Korea 50K 9:54:15 h57
24.03 56km JPN18th Mt. Rocco Cannonball Run - 56 km Night Speed 9:35:00 h47
2017
03.12 50km JPN5th Kumano Old Trails 8:34:50 h60
16.09 102km JPN9th Shinetsu Five Mountains Trail 100 mile 18:50:26 h227
18.06 100km JPN12. Okinoshima 100km Ultra Marathon 10:50:06 h63
13.05 108.7km JPN1st Aso Round Trail 23:02:23 h61
2016
04.12 50km JPN4th Kumano Old Trails 8:07:17 h79
23.10 56km JPN15th Mt. Rocco Cannonball Run - 56 km Speed 9:30:00 h212
02.10 100km JPN1st Iki 100 km Ultra Marathon 11:56:08 h58
19.06 100km JPN11. Okinoshima 100km Ultra Marathon 10:45:44 h55
28.05 50km JPN2nd Mt. Hiei Int. 50 km Trail Run 8:23:57 h257
24.04 70km JPN2nd Okumikawa Power Trail 11:18:09 h214
2015
29.11 50km JPNKumano Old Trails 8:08:38 h58
31.10 71.5km JPN23rd Hasetsune Cup - Japan Mountain Endurance Race 14:21:08 h775
22.09 110km JPN7th Shinetsu Five Mountains Trail 110km 17:13:46 h169
13.09 53km JPN5th Hakuba Int. Trail Run 7:15:17 h148
19.07 65km JPN6th Nozawa Onsen 4100D Mountain Trail 10:53:14 h67
21.06 100km JPN10. Okinoshima 100km Ultra Marathon 10:55:20 h79
30.05 50km JPN1st Mt. Hiei Int. 50 km Trail Run 8:40:40 h113
12.04 63km JPN1st Okumikawa Power Trail 11:05:23 h127
2014
19.10 73km JPN5th OSJ Hyonosen Mountains Trail Race 14:06:55 h334
20.07 65km JPN5th Nozawa Onsen 4100D Mountain Trail 12:18:18 h200
15.06 50km JPN9. Okinoshima 50km Ultra Marathon 5:47:18 h82
30.03 56km JPN10th Mt. Rocco Cannonball Run - 56 km Speed 12:36:25 h252