Jason Mesnick and Molly Malaney have renewed their marriage vows -- already.

The thirteenth-season The Bachelor couple reportedly renewed their vows in Las Vegas on Sunday, less than 10 months after saying "I do" for the first time when they tied the knot on February 27.

Mesnick and Malaney ran in the Rock 'n Roll Las Vegas Marathon where they made a pit stop near the three-mile mark outside the Venetian hotel for a "Run-Thru Wedding," Us Weekly reported, and were among 60 running couples who wed or renewed their vows.

According to Us, Mesnick and Malaney -- who were the first couple in The Bachelor's fourteen-season history to marry -- smiled as they exchanged vows for the second time surrounded by gondolas and a picturesque bridge.

Mesnick and Malaney originally got married in Ranchos Palos Verdes, CA, where nearly 300 guests attended a rain-interrupted ceremony at a resort overlooking the Pacific Ocean. The ceremony aired as part of ABC's two-hour The Bachelor: Jason and Molly's Wedding special on March 8.

Mesnick initially chose Melissa Rycroft at his final The Bachelor Rose Ceremony before dumping her on-air in favor of Malaney during the subsequent After the Final Rose special.