core4 gravel
- Running
- 5k
- 5k
- 10k
- 10k
- 10k
- 10k
- 10k
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- 10k
- 10k
- 10k
- Cycling
- 32 km
- 32 km
- 32 km
- 64 km
- 64 km
- 64 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 97 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 161 km
- 97 km
- 97 km
- 97 km
- 97 km
Iowa City, Iowa, United States