110-yard world-record share
Completed 110 yards at Belgium’s satellite championship, matching the then-world-best distance.
Source-checked athlete record · Updated Aug 17, 2026
Merijn Geerts
Five-time 100-yard runner and former backyard world-record co-holder
Merijn Geerts is a Belgian backyard specialist with five performances of at least 100 yards and a personal best of 110.
🇧🇪 BelgiumWilseleM50–54
The record so far
Merijn Geerts is a Belgian ultrarunner from Wilsele whose backyard career combines exceptional depth with repeated appearances at global championships. His current best is 110 yards, achieved at both the 2024 Belgian satellite championship and the 2026 Legends Backyard Ultra.
Geerts has reached at least 100 yards five times: 101 in 2022, 100 in 2023, 110 in 2024, 102 in 2025, and 110 in 2026. His 2022 and 2024 performances formed part of shared world-record progressions before later results moved the overall mark higher.
Defining performances
Performance history
| Date | Event | Performance | Result | Source |
|---|---|---|---|---|
| Legends Backyard UltraBackyard ultra | 110 yards · 737.660 km | 3rd overall | View ↗ | |
| Big Dog’s Backyard UltraBackyard ultra | 88 yards · 590.128 km | 13th overall | View ↗ | |
| Dead Cow Gully Backyard UltraBackyard ultra | 102 yards · 684.012 km | 3rd overall | View ↗ | |
| Backyard Ultra Team World Championship — BelgiumBackyard ultra | 110 yards · 737.660 km | Assist · then-world-record share | View ↗ | |
| Big Dog’s Backyard UltraBackyard ultra | 100 yards · 670.600 km | 6th overall | View ↗ | |
| Backyard Ultra Team World Championship — BelgiumBackyard ultra | 101 yards · 677.306 km | Assist · then-world-record share | View ↗ |
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