Chapchai Nirat
Chapchai Nirat is a Thai professional golfer.
Chapchai is the son of a Thai national team golfer, and turned professional in 1998 as a fifteen-year-old. He won for the first time as a pro at the 2004 Genting Masters in Malaysia. He joined the Asian Tour in 2005, and had a second-place finish in his rookie season. In 2007 he won the TCL Classic, which is co-sanctioned by the Asian Tour and the European Tour and the Hana Bank Vietnam Masters. He was the third Thai to win a European Tour event.
In March 2009, Nirat shot 32-under-par over 72 holes to claim the SAIL Open, setting a new Asian Tour record for the best 72-hole score.
Professional wins (9)
European Tour wins (1)
1Co-sanctioned by the Asian TourAsian Tour wins (4)
1Co-sanctioned by the European TourAsian Tour playoff record
| No. | Year | Tournament | Opponent | Result |
| 1 | 2014 | Worldwide Holdings Selangor Masters |  Antonio Lascuña | Won with par on first extra hole |
| 2 | 2015 | CIMB Niaga Indonesian Masters |  Lee Westwood | Lost to birdie on first extra hole |
Asian Development Tour wins (1)
1Co-sanctioned by the All Thailand Golf TourAll Thailand Golf Tour wins (4)
- 2007 Singha Pattaya Open
- 2014 Singha Championship, Singha Chiangmai Open
- 2016 Thongchai Jaidee Foundation1
Other wins (1)
- 2004 Genting Masters
Results in World Golf Championships
Note that the HSBC Champions did not become a WGC event until 2009.