Pablo Larrazabal flew round the London Club in 122 minutes on the final day of the European Open - but failed to take the money off South African Anton Haig.
The Spaniard, first out on his own, had bet Haig that he could get round in under two hours 15 minutes and in under 70 shots.
Larrazabal comfortably did it on time, but despite a par three on the 17th - the hole where he ran up a sextuple bogey nine in the third round - and a rare birdie on the 471-yard last he scored 71.
It meant no cash exchanged hands between the two because it was "double or quits" bet following Barcelona's win over Manchester United in midweek.
Larrazabal, who went to school with Barca midfield star Andres Iniesta, said: "I had nothing to lose and it was fun to play that way. I was eight shots better than yesterday."
Back in 1992 at the Players Championship John Daly and Mark Calcavecchia were fined by the US Tour for playing their last round in 123 minutes - but that was because they scored 80 and 81 respectively.
Just three weeks ago at the Italian Open England's Benn Barham and Scot Marc Warren, keen to catch a flight home, played their final round in 141 minutes, shooting 69 and 71.
Larrazabal was so quick that when he went to hand in his scorecard he found the door locked. Nobody was expecting him back so soon.
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