Nascar Driver and Go Daddy spokesperson Danica Patrick has filed for divorce from her husband Paul Hospenthal. Divorce documents filed in Arizona on January 3 cites the marriage has been "irretrievably broken." The Sprint Cup Series driver first announced her divorce in November 2012 with a message posted on her Facebook page.

"I am sad to inform my fans that after 7 years, Paul and I have decided to amicably end our marriage," she wrote. "This isn't easy for either of us, but mutually it has come to this. He has been an important person and friend in my life and that's how we will remain moving forward." Hospenthal is a physical therapist and is at least 15 years older than Patrick.

Court documents show the couple did sign a prenuptial agreement which should protect Patrick's $18 million fortune. The couple has no children and neither side has asked for alimony. Patrick married Hospenthal in 2005. The couple met in 2002 when she was recovering from a hip injury injury.

Arizona is a no-fault divorce state, so no reason is required for the divorce. The divorce cannot be finalized until 60 days after Hospenthal has been served. Patrick wrote in divorce documents, "My marriage is irretrievably broken and there is no reasonable prospect of reconciliation."

Patrick was named the most popular driver in NASCAR's Nationwide series on Monday, a fan-voted award. In this year's Nationwide season, Patrick finished in 10th place, becoming the female driver with the highest finishing ever in any one of NASCAR's three national touring series. 

Tags: Danica Patrick