Mattias Gustafsson Grå
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Born : 1975
Cat. M50 Ultrarunner since 2019
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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 ?Sweden
Sweden72,3%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 2 023; Σ finishers = 2 798. 2 023 / 2 798 × 100 = 72.30%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races565 km
> 24h4
Longest race87,2 km
6 Älvdalen Backyard Ultra — 17/6/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail51,3%
Elim.48,7%
Records
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 23.08 | 45km | Idre Fjällmaraton |
7:28:03 h | 653 |
| 2024 | ||||
| 15.06 | Backyard Ultra | 6 Älvdalen Backyard Ultra |
53.648 km (8h) | 65 |
| 2023 | ||||
| 07.10 | 55km | 22th Sörmland Ultra Marathon |
6:18:48 h | 75 |
| 17.06 | Backyard Ultra | 6 Älvdalen Backyard Ultra |
87.178 km (13h) | 15 |
| 06.05 | Backyard Ultra | 2. Winter Bay Backyard Ultra |
53.648 km (8h) | 68 |
| 2022 | ||||
| 20.08 | 45km | Idre Fjällmaraton 45km |
6:56:38 h | 311 |
| 18.06 | Backyard Ultra | 6 Älvdalen Backyard Ultra |
80.472 km (12h) | 34 |
| 2021 | ||||
| 16.10 | 50km | 20th Sörmland Ultra Marathon |
6:08:02 h | 92 |
| 28.08 | 45km | Idre Fjällmaraton 45km |
7:50:35 h | 525 |
| 2019 | ||||
| 12.10 | 50km | 19th Sörmland Ultra Marathon |
6:59:14 h | 195 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/6/2023 | 6 Älvdalen Backyard Ultra | 87,18 | ×3 |
| ✓ 2 | 18/6/2022 | 6 Älvdalen Backyard Ultra | 80,47 | ×3 |
| ✓ 3 | 7/10/2023 | 22th Sörmland Ultra Marathon | 55,00 | ×2 |
| ✓ 4 | 15/6/2024 | 6 Älvdalen Backyard Ultra | 53,65 | ×2 |
| ✓ 5 | 6/5/2023 | 2. Winter Bay Backyard Ultra | 53,65 | ×2 |
| ✓ 6 | 16/10/2021 | 20th Sörmland Ultra Marathon | 50,00 | ×2 |
| ✓ 7 | 12/10/2019 | 19th Sörmland Ultra Marathon | 50,00 | ×2 |
| ✓ 8 | 23/8/2025 | Idre Fjällmaraton | 45,00 | ×2 |
| ✓ 9 | 20/8/2022 | Idre Fjällmaraton 45km | 45,00 | ×2 |
| ✓ 10 | 28/8/2021 | Idre Fjällmaraton 45km | 45,00 | ×2 |