Rachel Riley and Kirsty Gallacher win biggest ever payout on The Chase

Rachel Riley will appear on a celebrity version of The Chase [Steve Searle/WENN.com] Rachel Riley and Kirsty Gallacher stunned viewers as they took home a hefty prize on a charity version of The Chase.  The Countdown star and the Sky Sports presenter are said to have have triumphantly beaten the Chaser, winning the largest payout in the show’s history.  The pair pulled in a whopping £160,000 between them while appearing on the show’s Sports Relief special, hosted by …