Last Annual Vol-State 500K champion
Won in 3 days, 4 hours, 9 minutes, and 10 seconds, setting the course and uncrewed division record.
Source-checked athlete record · Updated Aug 18, 2026
Bob Hearn
Vol-State record setter and 530-mile six-day runner
Bob Hearn set a Vol-State course record, ran 530.159 miles in six days, and built a career around precise fixed-time and multiday racing.
United StatesRedwood City, CaliforniaM60–64
The record so far
Bob Hearn is an American ultrarunner whose results span six-day races, 24- and 48-hour events, Spartathlon, backyard ultras, and the 500-kilometer Last Annual Vol-State Road Race.
Hearn won the 2021 Vol-State in 76:09:10, setting a course and uncrewed division record. Two years earlier, he covered 530.159 miles at Six Days in the Dome, finishing second to Joe Fejes and placing the result among the leading American six-day performances at the time.
His fixed-time progression included American over-50 age-group records at 24 and 48 hours. Hearn has also finished Spartathlon six times, with a best of 27:01:08, and continued racing into the M60 category in 2026.
Defining performances
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530 miles at Six Days in the Dome
Covered 530.159 miles for second place in a three-runner battle that lasted the full six days.
American over-50 24-hour record
Ran 154.051 miles at Desert Solstice to extend his own age-group benchmark.
American M50–54 48-hour record
Reached 231.991 miles during his multiday debut at the Snowdrop Ultra.
Performance history
| Date | Event | Performance | Result | Source |
|---|---|---|---|---|
| Cinderella 50K Spring Trail Run50 km trail | 7:21:24 | 1st M60 · 13th overall | View ↗ | |
| Capital Backyard UltraBackyard ultra | 28 yards · 187.768 km | 2nd M60 · 12th overall | View ↗ | |
| Desert Solstice24-hour track | 210.123 km | 3rd overall | View ↗ | |
| Spartathlon246 km road | 33:14:37 | 94th man · 109th overall | View ↗ | |
| Last Annual Vol-State 500K500 km road | 94:53:51 | 2nd overall | View ↗ | |
| Last Annual Vol-State 500K500 km road | 76:09:10 | 1st overall · course record setter | View ↗ | |
| 3 Days at the Fair48-hour road | 240 miles | 1st man · 2nd overall | View ↗ | |
| Six Days in the DomeSix-day track | 530.159 miles · 853.206 km | 2nd overall | View ↗ | |
| Desert Solstice24-hour track | 154.051 miles · 247.921 km | 4th man · 5th overall | View ↗ | |
| Spartathlon246 km road | 27:01:08 | 16th overall | View ↗ |
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