Steve Farmer believes his new fitness regime has helped him progress to the second round of the PDC World Darts Championship in London.
The Telford darts player beat Ronnie Baxter 3-2 in the first round of the tournament.
He told BBC Radio Shropshire: "I've been doing seven miles several times a week. In that deciding set I'd normally run out of stamina, but now I don't."
"I've been getting into shape and doing lots of running to help my game."
He added: "I'm going to have a great Christmas now. I might treat myself to a nice dinner, but no pudding."
Farmer crashed out of the same event last year in the first round.
"When I drew Ronnie in the first round, I thought 'there's no God, what a tough draw that is'. I couldn't believe it, my last dart hit the double every time."
Farmer, ranked 40 in the world, will now play German qualifier Kevin Munch in the second round on Friday.