2010 Open Championship: Louis Oosthuizen wins at Old Course, St Andrews
Louis Oosthuizen won the 2010 Open Championship at Old Course, St Andrews, Scotland with 272 (−16), by 7 strokes over Lee Westwood.
Updated October 23, 2026
See 2010 in The Open room, or every year on The Open winners list.
- Dates
- 15 July 2010 to 18 July 2010
- Course
- Old Course, St Andrews, Scotland
- Edition
- 139th Open Championship
- Format
- 72 holes of stroke play
- Par
- 72
- Field
- 156
- Made the cut
- 77 (cut at 146)
- Purse
- £4,800,000 · winner's share £850,000
- Trophy
- Claret Jug (replica to winner)
- Champion
- Louis Oosthuizen · age 27 · South Africa · born Mossel Bay, South Africa
- Champion's title
- 1st Open title
- World ranking entering
- No. 54
- Winning score
- 65-67-69-71 = 272 (−16) · won by 7 strokes
- Runner-up
- Lee Westwood (279)
- 54-hole leader
- Louis Oosthuizen (201)
- Deciding hole
- No. 12, round 4
- Low amateur
- Jin Jeong (284)
Top 10 as recorded
| Pos. | Player | R1 | R2 | R3 | R4 | Total | To par |
|---|---|---|---|---|---|---|---|
| 1 | Louis Oosthuizen | 65 | 67 | 69 | 71 | 272 | −16 |
| 2 | Lee Westwood | 67 | 71 | 71 | 70 | 279 | −9 |
| T3 | Henrik Stenson | 68 | 74 | 67 | 71 | 280 | −8 |
| T3 | Rory McIlroy | 63 | 80 | 69 | 68 | 280 | −8 |
| T3 | Paul Casey | 69 | 69 | 67 | 75 | 280 | −8 |
| 6 | Retief Goosen | 69 | 70 | 72 | 70 | 281 | −7 |
| T7 | Martin Kaymer | 69 | 71 | 68 | 74 | 282 | −6 |
| T7 | Nick Watney | 67 | 73 | 71 | 71 | 282 | −6 |
| T7 | Sean O'Hair | 67 | 72 | 72 | 71 | 282 | −6 |
| T7 | Robert Rock | 68 | 78 | 67 | 69 | 282 | −6 |
What happened at the 2010 Open Championship
At the 12th in the final round Paul Casey made triple bogey while Oosthuizen birdied, which effectively settled the Championship.
Rory McIlroy opened with a record-tying 63, then shot 80 in Friday's gale-force winds.
Paul Casey, Oosthuizen's closest challenger, drove into gorse at the 12th and made a double bogey (R&A figure; AP and Golf Compendium say triple), which AP says "effectively ended" the Open.
How this was built
Every value is shown as recorded in GNN's The Open data. A value no source confirmed is left out; nothing is estimated. Where sources disagree, the organizer's own record is used.
Data: the-open.json (The Open room's data), with GNN's Open Championship addendum tables L (top ten by round), H (deciding hole), W (final-day weather).