Prom Meesawat responded well under immense pressure to see off the challenge of David Lipsky at the Aberdeen Asset Management Paul Lawrie Match Play on Thursday.
The two-time Asian Tour winner, who hails from Thailand, lost the first hole as his American opponent made a birdie at the first. However, Meesawat hit back on the third with a birdie of his own to level matters. He followed that up with another gain at the fifth to lead for the first time in the match.
More birdies came at nine and 11 as Meesawat went three up with just seven holes to play.
Lipsky found some rhythm in the closing stages of the match. He took the 12th only for Meesawat to restore his three hole cushion on the 13th with a two club.
Lipsky then claimed the 14th and 17th to trail by one with one to play.
Meesawat held his nerve though as he made a gutsy par on the last to halve the hole and take the match.
South Korea's Jin Jeong went down to Mikko Ilonen three-and-two.
Elsewhere, Ryder Cup hopefuls Matthew Fitzpatrick and Chris Wood enjoyed comfortable victories while Daniel Brooks, Matt Ford, Alex Noren, Renato Paratore, Richard Bland, Marc Warren, David Horsey, James Morrison, Oliver Fisher and host Lawrie all progressed too.