BYRON -- An experienced, competitive sky diver suffered moderate injuries after he crash landed during a jump at Byron Airport on Saturday, said the owner of the sky diving business.

The sky diver, who has done thousands of jumps and had been sky diving for more than 10 years, miscalculated his landing around 1:23 p.m., said Clay Bonavito with Bay Area Skydiving. Bonavito said the sky diver, who has not been identified, skidded and tumbled before coming to a stop. He was solo jumping at the time of the incident.

"You are off (in your landing) by just a fraction and these guys can get roughed up," Bonavito said.

Chief Hugh Henderson with the East Contra Costa Fire Protection District said the sky diver suffered "moderate" injuries when he was flown to John Muir Medical Center in Walnut Creek.

Bonavito said the sky diver was awake and talking when he left, and that the transport to the hospital was a precaution.

"He seemed OK when he left," Bonavito said.

The sky diving outfit was temporarily shut down while fire and paramedic crews were at the airport, Henderson said, but has since resumed.

Follow Katie Nelson at Twitter.com/katienelson210.