John O'Leary has played six Masters, the first in 2008 and the latest in 2017. That includes five in a row from 2013 to 2017. The best finish is 29th, in 2015 and 2016. O'Leary’s latest Masters, in 2017, ended in T52nd, below the earlier average finish of 30.2.
The best scoring year was 2016, at 32.17 per round, 1.40 better than the field that year. Across all 72 rounds with scores, O'Leary has averaged 34.31, 0.24 strokes per round better than the field. The lowest round is 29, shot four times, the first in 2014. Measured against the field, Aloha has been the best course: 31.90 per round over 10 rounds, 1.14 better than the field average there.
ChampionPodiumMissing years: did not play
Average per roundField averageLower is better
Career average per round compared with the field average and the winners' average in the same years, weighted by rounds played.
| Course | Rounds | Average | Field avg | Best |
|---|---|---|---|---|
| Aloha | 10 | 31.90 | 33.04 | 29 |
| Pineapple | 10 | 33.50 | 34.21 | 30 |
| Rumble | 28 | 33.64 | 34.34 | 29 |
| Year | Place | Div. | Rounds | Total | Avg | Vs field | Best round | Prize |
|---|---|---|---|---|---|---|---|---|
| 2017 | T52nd of 84 | Pro | 12 | 414 | 34.50 | -0.02 | 31 | – |
| 2016 | T29th of 71 | Pro | 12 | 386 | 32.17 | -1.40 | 29 | – |
| 2015 | T29th of 58 | Pro | 12 | 393 | 32.75 | -0.29 | 29 | $50 |
| 2014 | T30th of 62 | Pro | 12 | 403 | 33.58 | -0.99 | 29 | $25 |
| 2013 | T33rd of 51 | – | 12 | 423 | 35.25 | -0.74 | 32 | – |
| 2008 | 30th of 36 | – | 12 | 451 | 37.58 | +2.02 | 32 | – |
Vs field: average per round minus that year's field average (negative is better). Prize money is shown only where it is known (2014, 2015, 2021, 2026); career winnings count only those years. Click a year for the full results.
Note: Built from the published result sheets (1998–2026). Some years list rounds only in part; a round count of 10 is assumed for 1998, where only totals exist. Names are merged across spelling variants.
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