IAU 24-Hour world silver medalist
Placed second in the men’s championship with 285.513 kilometers.
Source-checked athlete record · Updated Aug 18, 2026
Jo Inge Norum
2025 IAU 24-Hour world silver medalist and Norwegian record holder
Jo Inge Norum is Norway’s 24-hour record holder and the 2025 IAU world silver medalist, with a championship best of 285.513 km.
NorwayStjørdal, NorwayHell UltraløperklubbM45–49
The record so far
Jo Inge Norum is a Norwegian fixed-time ultrarunner from Stjørdal who represents Hell Ultraløperklubb. His published results show a steady progression in 24-hour racing, from 200.928 kilometers at Bislett in 2017 to a world championship podium in 2025.
At the 2025 IAU 24-Hour World Championships in Albi, Norum covered 285.513 kilometers to win the men’s silver medal and establish a Norwegian national record. The result improved substantially on his previous best of 263.347 kilometers from the 2021 Bislett 24-Hour Indoor Challenge.
Norum’s record also includes a 6:53:46 finish at the 2022 Norwegian 100 km Championship and victory at the 2020 Østmarka Backyard Ultra after 42 yards.
Defining performances
Performance history
| Date | Event | Performance | Result | Source |
|---|---|---|---|---|
| IAU 24-Hour World Championships24-hour road | 285.513 km | 2nd man · World silver · Norwegian record | View ↗ | |
| IAU 24-Hour World Championships24-hour road | 252.250 km | 23rd man | View ↗ | |
| Bergen Ultra — Norwegian Championship100 km road | 6:53:46 | 2nd overall | View ↗ | |
| Bislett 24-Hour Indoor Challenge24-hour indoor track | 263.347 km | 2nd overall | View ↗ | |
| Østmarka Backyard UltraBackyard ultra | 42 yards · 281.652 km | 1st overall | View ↗ | |
| IAU 24-Hour World Championships24-hour road | 242.940 km | 26th man | View ↗ |
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