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 / Updated  / Source: Associated Press
By Associated Press

A 92-year-old cancer survivor has rocked her way into the record books, becoming the oldest woman to finish a marathon.

Harriette Thompson of Charlotte, North Carolina, completed Sunday's Rock 'n' roll Marathon in San Diego in a little more than 7 hours and 24 minutes.

Marathon spokesman Dan Cruz says she looked strong at the finish. Thompson is a two-time cancer survivor who dealt with the loss of her husband and a staph infection in her legs while training for this year's race.

This is her 16th time running the marathon, and last year she set a record when she finished the race in 7 hours, 7 minutes and 42 seconds, beating the previous record for a woman 90 or older by more than an hour and a half.

Related: 92-Year-Old Marathoner's Secret: 'Think Positive

A classically trained pianist who played three times at Carnegie Hall, Thompson says she mentally plays old piano pieces she had performed to help her get through the 26.2 miles.

In this photo provided by Competitor Group, Harriette Thompson starts the Suja Rock ‘n’ Roll Marathon in San Diego on Sunday, May 31, 2015. Thompson, of Charlotte, N.C., is a two-time cancer survivor who dealt with the loss of her husband and a staph infection in her legs while training for this year’s race.Paul Nestor / Competitor Group via AP

"I just don't think of myself being that unusual," she said. "I have a lot of people saying what an inspiration I am. That's nice to hear, good for something at this age."

The oldest woman to previously complete a marathon was Gladys Burrill, who was 92 years and 19 days old when she finished the 2010 Honolulu Marathon.

Thompson is 92 years and 65 days old, according to race organizers.