Yoshiko (小林佳子) Kobayashi
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Born : 1982
Cat. W40 Ultrarunner since 2016
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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 ?Japan
Japan59,4%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 2 709; Σ finishers = 4 558. 2 709 / 4 558 × 100 = 59.43%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races899 km
> 100 km3
> 160 km1
> 200 km1
Longest race204,0 km
8th Little Edo Oedo 200k — 3/3/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road75,1%
Trail24,9%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F2
Longest winning streak0
Current streak0
Records
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 21.04 | 70km | 15th 70 km Ultra Maranic Osaka |
11:12:45 h | 249 |
| 2023 | ||||
| 01.07 | 8h | 29th 8-Hour Endurance Race Tokorozawa |
53.900 km | 109 |
| 2022 | ||||
| 03.07 | 8h | 28th 8-Hour Endurance Race Tokorozawa |
53.900 km | 134 |
| 2021 | ||||
| 04.07 | 8h | 27th 8-Hour Endurance Race Tokorozawa |
63.700 km | 203 |
| 27.03 | 115km | 11th Oedo Night run 115k |
14:28:50 h | 6 |
| 2020 | ||||
| 22.02 | 115km | 10th Oedo Night run 115k |
15:13:22 h | 21 |
| 2018 | ||||
| 03.03 | 204km | 8th Little Edo Oedo 200k |
34:57:47 h | 184 |
| 2017 | ||||
| 08.10 | 71.5km | 25th Hasetsune Cup - Japan Mountain Endurance Race |
17:42:27 h | 971 |
| 15.07 | 100km | 10th OSJ Ontake 100km Ultra Trail |
16:33:31 h | 581 |
| 2016 | ||||
| 19.11 | 52km | 2nd FunTrails50K Two Lakes&Green line |
9:54:26 h | 261 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/3/2018 | 8th Little Edo Oedo 200k | 204,00 | ×7 |
| ✓ 2 | 27/3/2021 | 11th Oedo Night run 115k | 115,00 | ×4 |
| ✓ 3 | 22/2/2020 | 10th Oedo Night run 115k | 115,00 | ×4 |
| ✓ 4 | 15/7/2017 | 10th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 5 | 8/10/2017 | 25th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 6 | 21/4/2024 | 15th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 7 | 4/7/2021 | 27th 8-Hour Endurance Race Tokorozawa | 63,70 | ×2 |
| ✓ 8 | 1/7/2023 | 29th 8-Hour Endurance Race Tokorozawa | 53,90 | ×1 |
| ✓ 9 | 3/7/2022 | 28th 8-Hour Endurance Race Tokorozawa | 53,90 | ×1 |
| ✓ 10 | 19/11/2016 | 2nd FunTrails50K Two Lakes&Green line | 52,00 | ×1 |