A Brazilian who's just finished 111,000 sit-ups in 24 hours says he won't do another for months.
Edmar Freitas, a fitness instructor from Parana, is claiming the world record. The previous best was 103,000.
He's sending a video and documentation to the Guinness Book to confirm the record.
He told Globo television: "It will take me a couple of months to think about doing abs again."
American Bill Evans is the current record holder.
Mr Freitas completed the sit-up marathon on a stage in a busy street in Curitiba, the capital of Parana state.
He ate a cereal bar and drank coconut milk every hour. He was allowed a five-minute toilet break every four hours. He'd trained for over a year.
Eleven students counted each sit-up. He averaged around 77 per minute.