Despite how bad things looked, officials say all the riders and horses involved in the accident are expected to be OK.
"He run over top of me, and that forced my horse to go down. Then he ran over me. Then everybody else come along," said Mike Oosting, harness driver.
"The horses only race once a night, but they are extremely tough. I'm sure every horse that was in the accident tonight will be fine and race again next week or the following week," said Tyler Buter, harness driver.
The drivers believe the wet track also played a role in the accident.