24-hour world record
Covered 319.614 km in Verona, averaging approximately 4:30 per kilometre for a full day.
Athlete profile · Sources reviewed Oct 20, 2026
Aleksandr Sorokin
24-hour and 100 km world-record holder
Aleksandr Sorokin is a Lithuanian ultrarunner listed by the IAU as the men’s record holder at 6 hours, 12 hours, 24 hours, 100 km and 100 miles.
LithuaniaVilniusCosmaM45
The record so far
Aleksandr Sorokin holds multiple world records in modern fixed-time ultrarunning. His 319.614 km performance at the 2022 IAU European 24-hour Championship remains the ratified men’s world record, while his 177.410 km 12-hour mark and 10:51:39 100-mile split came from the January 2022 Spartanion 12-hour race in Tel Aviv, Israel.
Sorokin also brought elite marathon-style speed to the 100 km. He lowered the road world record to 6:05:35 in Vilnius in 2023, then won the IAU 24-hour World Championship later that year with 301.790 km—his second world title at the format. In September 2026 he took silver at the IAU 100 km World Championship in Ames, Spain, running 6:12:41 behind Charlie Lawrence.
Defining performances
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100 km world record
Ran 6:05:35 in Vilnius, improving on the 6:05:41 world record he had set on the track in Bedford in 2022.
Second IAU 24-hour world title
Won the Taipei championship with 301.790 km and led Lithuania to team gold.
IAU 100 km world silver
Ran 6:12:41 in Ames, Spain, to finish second behind Charlie Lawrence at the IAU 100 km World Championship.
Performance history
Selected results, not a complete race history. Rankings and record descriptions reflect the cited sources at their review dates. Distances may use different rounding conventions.
| Date | Event | Performance | Result | Source |
|---|---|---|---|---|
| IAU 100 km World Championship100 km roadFinished 3:16 behind winner Charlie Lawrence in Ames, Spain. | 6:12:41 | Silver medal | View ↗ | |
| Comrades Marathon — Up Run85.777 km road | 5:42:34 | 29th overall | View ↗ | |
| IAU 24-hour World Championship24-hour raceFotis Zisimopoulos took silver with 292.254 km. | 301.790 km | World champion | View ↗ | |
| World’s Fastest Run100 km road | 6:05:35 | World record | View ↗ | |
| IAU 24-hour European Championship24-hour race | 319.614 km | World record · European champion | View ↗ | |
| Centurion Track 100 (6-hour split)6-hour trackThe IAU lists it as the men’s 6-hour world record, set in Bedford. DUV records it as an intermediate split of the Centurion Track 100, where he also passed 100 km in 6:05:41. | 98.496 km | World record | View ↗ | |
| Spartanion 12 Hour12-hour raceIncluded a 10:51:39 world-record 100-mile split. | 177.410 km | World record | View ↗ | |
| IAU 24-hour World Championship24-hour raceHis first world title, won in Albi ahead of Tamás Bódis with a Lithuanian record at the time. | 278.972 km | World champion | View ↗ | |
| Spartathlon246 km road | 22:04:04 | Winner | View ↗ |
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