Kist – who was knocked out of last year’s tournament by teenager Luke Littler – will still earn a bigger cheque than he would have got for reaching the quarter-finals.
His nine-darter was the 15th in the history of the championship and first since the greatest leg in darts history when Smith struck, moments after Van Gerwen just missed his attempt.
Darts fan Kris, a railway worker from Sutton in south London, was the random spectator picked out to receive £60,000, with Prostate Cancer UK getting the same sum from tournament sponsors Paddy Power.
“I’m speechless to be honest. I didn’t expect it to happen to me,” he said.
“This was a birthday present so it makes it even better. My grandad got me tickets. It was just a normal day – I came here after work.”
Earlier, Jim Williams was favourite against Paolo Nebrida but lost 3-2 in an epic lasting more than an hour.
The Filipino took a surprise 2-1 lead and Williams only went ahead for the first time in the opening leg of the deciding set. The Welshman looked set for victory but missed five match darts.
UK Open semi-finalist Ricky Evans set up a second-round match against Dave Chisnall, checking out on 109 to edge past Gordon Mathers 3-2.
