# Chapchai Nirat

Chapchai Nirat (Thai: ชัพชัย นิราช; born 5 June 1983) 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 (11)
### European Tour wins (1)

| No. | Date | Tournament | Winning score | Margin of victory | Runner-up |
| 1 | 18 Mar 2007 | TCL Classic$^1$ | −22 (61-66-68-71=266) | 3 strokes | Rafael Echenique |
$^1$Co-sanctioned by the Asian Tour

### Asian Tour wins (4)

| No. | Date | Tournament | Winning score | Margin of victory | Runner(s)-up |
| 1 | 18 Mar 2007 | TCL Classic$^1$ | −22 (61-66-68-71=266) | 3 strokes | Rafael Echenique |
| 2 | 25 Nov 2007 | Hana Bank Vietnam Masters | −12 (68-71-70-67=276) | 2 strokes | Simon Griffiths, Chawalit Plaphol |
| 3 | 21 Mar 2009 | SAIL Open | −32 (62-62-65-67=256) | 11 strokes | Gaganjeet Bhullar, Richard Moir |
| 4 | 21 Sep 2014 | Worldwide Holdings Selangor Masters | −10 (68-69-69-68=274) | Playoff | Antonio Lascuña |
$^1$Co-sanctioned by the European Tour
Asian Tour playoff record (1–1)
| 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)

| No. | Date | Tournament | Winning score | Margin of victory | Runner-up |
| 1 | 4 Dec 2016 | ADT Thongchai Jaidee Foundation$^1$ | −12 (73-71-67-65=276) | 6 strokes | Sorachut Hansapiban |
$^1$Co-sanctioned by the All Thailand Golf Tour

### All Thailand Golf Tour wins (4)

| No. | Date | Tournament | Winning score | Margin of victory | Runner-up |
| 1 | 7 Apr 2007 | Singha Pattaya Open | | | |
| 2 | 25 May 2014 | Singha Championship | −14 (69-67-71-67=274) | 2 strokes | Thitiphun Chuayprakong |
| 3 | 3 Aug 2014 | Singha Chiang Mai Open$^1$ | −23 (65-67-65-64=261) | 2 strokes | Pipatpong Naewsuk |
| 4 | 4 Dec 2016 | ADT Thongchai Jaidee Foundation$^2$ | −12 (73-71-67-65=276) | 6 strokes | Sorachut Hansapiban |
$^1$Co-sanctioned by the ASEAN PGA Tour $^2$Co-sanctioned by the Asian Development Tour

### Thailand PGA Tour wins (1)

| No. | Date | Tournament | Winning score | Margin of victory | Runner-up |
| 1 | 22 Sep 2018 | Singha-SAT Kanchanaburi Championship | −13 (67-67-66-67=267) | 3 strokes | Chonlatit Chuenboonngam |

### TrustGolf Tour wins (1)

| No. | Date | Tournament | Winning score | Margin of victory | Runner-up |
| 1 | 17 Apr 2021 | Thailand Mixed#2 | −16 (66-68-66=200)* | Shared title with Prom Meesawat | Shared title with Prom Meesawat |
*Note: The 2021 Thailand Mixed #2 was shortened to 54 holes due to COVID-19 restrictions.

### Other wins (1)

* 2004 Genting Masters (Malaysia)

## Results in World Golf Championships

| Tournament | 2008 | 2009 |
| Match Play | | |
| Championship | T61 | |
| Invitational | | |
| Champions | | T33 |
"T" = Tied Note that the HSBC Champions did not become a WGC event until 2009.