375 athletes signed up on the first day of registration for the March 3, 2024 Arnold 5K Pump & Run. Event is limited to 1,000 athletes.
https://www.runohio.com/index.php/news-features/news/464-arnold-5k-pump-run-and-arnold-5k-3
https://www.runohio.com/index.php/news-features/news/464-arnold-5k-pump-run-and-arnold-5k-3