Ranking history updated: 2026-03-17 04:30 UTC
Dean O'Brien ATP Ranking History
Dean O'Brien's ATP ranking history, with year-by-year summaries plus every available weekly rank, age and points snapshot.
Latest Rank
1,223
Latest date
Oct 31, 2016
Career high
507
Career-high date
Apr 21, 2014
Career-high points
68
Points-high date
Apr 21, 2014
Best year-end
532
Weeks at #1
0
Coverage: 299 distinct observed ranking weeks, Jul 6, 2009–Oct 31, 2016. Available-week totals may undercount careers where historical snapshots are missing. Weeks at No. 1 counts available snapshots.
Select a legend item to show or hide that series. Focus the chart and use the left and right arrow keys to inspect ranking snapshots.
| Season | Date | Week | Age | Rank | Points |
|---|---|---|---|---|---|
| 2014 | Sep 22 | 39 | 24.4 | #620 | 45 |
| 2014 | Sep 29 | 40 | 24.4 | #614 | 45 |
| 2014 | Oct 6 | 41 | 24.4 | #617 | 45 |
| 2014 | Oct 13 | 42 | 24.4 | #627 | 43 |
| 2014 | Oct 20 | 43 | 24.4 | #621 | 43 |
| 2014 | Oct 27 | 44 | 24.5 | #619 | 43 |
| 2014 | Nov 3 | 45 | 24.5 | #620 | 43 |
| 2014 | Nov 10 | 46 | 24.5 | #625 | 43 |
| 2014 | Nov 17 | 47 | 24.5 | #625 | 43 |
| 2014 | Nov 24 | 48 | 24.5 | #681 | 35 |
| 2014 | Dec 1 | 49 | 24.5 | #700 | 32 |
| 2014 | Dec 8 | 50 | 24.6 | #700 | 32 |
| 2014 | Dec 15 | 51 | 24.6 | #701 | 32 |
| 2014 | Dec 22 | 52 | 24.6 | #699 | 32 |
| 2014 | Dec 29 | 1 | 24.6 | #699 | 32 |
| 2015 | Jan 5 | 2 | 24.6 | #699 | 32 |
| 2015 | Jan 12 | 3 | 24.7 | #699 | 32 |
| 2015 | Jan 19 | 4 | 24.7 | #703 | 32 |
| 2015 | Feb 2 | 6 | 24.7 | #707 | 32 |
| 2015 | Feb 9 | 7 | 24.7 | #709 | 32 |
| 2015 | Feb 16 | 8 | 24.8 | #709 | 32 |
| 2015 | Feb 23 | 9 | 24.8 | #763 | 27 |
| 2015 | Mar 2 | 10 | 24.8 | #761 | 27 |
| 2015 | Mar 9 | 11 | 24.8 | #766 | 27 |
| 2015 | Mar 23 | 13 | 24.9 | #769 | 26 |
| 2015 | Apr 6 | 15 | 24.9 | #764 | 26 |
| 2015 | Apr 13 | 16 | 24.9 | #765 | 26 |
| 2015 | Apr 20 | 17 | 24.9 | #791 | 23 |
| 2015 | Apr 27 | 18 | 25.0 | #795 | 23 |
| 2015 | May 4 | 19 | 25.0 | #801 | 23 |
| 2015 | May 11 | 20 | 25.0 | #842 | 20 |
| 2015 | May 18 | 21 | 25.0 | #992 | 12 |
| 2015 | May 25 | 22 | 25.0 | #990 | 12 |
| 2015 | Jun 8 | 24 | 25.1 | #992 | 12 |
| 2015 | Jun 15 | 25 | 25.1 | #1,228 | 6 |
| 2015 | Jun 22 | 26 | 25.1 | #1,298 | 5 |
| 2015 | Jun 29 | 27 | 25.1 | #1,310 | 5 |
| 2015 | Jul 13 | 29 | 25.2 | #1,280 | 5 |
| 2015 | Jul 20 | 30 | 25.2 | #1,271 | 5 |
| 2015 | Jul 27 | 31 | 25.2 | #1,271 | 5 |
| 2015 | Aug 3 | 32 | 25.2 | #1,274 | 5 |
| 2015 | Aug 10 | 33 | 25.2 | #1,284 | 5 |
| 2015 | Aug 17 | 34 | 25.3 | #1,284 | 5 |
| 2015 | Aug 24 | 35 | 25.3 | #1,274 | 5 |
| 2015 | Aug 31 | 36 | 25.3 | #1,294 | 5 |
| 2015 | Sep 14 | 38 | 25.3 | #1,321 | 4 |
| 2015 | Sep 21 | 39 | 25.4 | #2,175 | 1 |
| 2015 | Sep 28 | 40 | 25.4 | #1,341 | 4 |
| 2015 | Oct 5 | 41 | 25.4 | #1,345 | 4 |
| 2015 | Oct 12 | 42 | 25.4 | #1,352 | 4 |
| 2015 | Oct 19 | 43 | 25.4 | #1,347 | 4 |
| 2015 | Oct 26 | 44 | 25.4 | #1,338 | 4 |
| 2015 | Nov 2 | 45 | 25.5 | #1,340 | 4 |
| 2015 | Nov 9 | 46 | 25.5 | #1,080 | 9 |
| 2015 | Nov 16 | 47 | 25.5 | #1,087 | 9 |
| 2015 | Nov 23 | 48 | 25.5 | #1,085 | 9 |
| 2015 | Nov 30 | 49 | 25.5 | #1,086 | 9 |
| 2015 | Dec 7 | 50 | 25.6 | #1,091 | 9 |
| 2015 | Dec 14 | 51 | 25.6 | #1,091 | 9 |
| 2015 | Dec 21 | 52 | 25.6 | #1,088 | 9 |
| 2015 | Dec 28 | 53 | 25.6 | #1,091 | 9 |
| 2016 | Jan 4 | 1 | 25.6 | #1,091 | 9 |
| 2016 | Jan 11 | 2 | 25.7 | #1,091 | 9 |
| 2016 | Jan 18 | 3 | 25.7 | #1,090 | 9 |
| 2016 | Feb 1 | 5 | 25.7 | #1,090 | 9 |
| 2016 | Feb 8 | 6 | 25.7 | #1,092 | 9 |
| 2016 | Feb 15 | 7 | 25.8 | #1,091 | 9 |
| 2016 | Feb 22 | 8 | 25.8 | #1,093 | 9 |
| 2016 | Feb 29 | 9 | 25.8 | #1,088 | 9 |
| 2016 | Mar 7 | 10 | 25.8 | #1,090 | 9 |
| 2016 | Mar 21 | 12 | 25.9 | #1,089 | 9 |
| 2016 | Apr 4 | 14 | 25.9 | #1,085 | 9 |
| 2016 | Apr 11 | 15 | 25.9 | #1,086 | 9 |
| 2016 | Apr 18 | 16 | 25.9 | #1,085 | 9 |
| 2016 | Apr 25 | 17 | 25.9 | #1,083 | 9 |
| 2016 | May 2 | 18 | 26.0 | #1,082 | 9 |
| 2016 | May 9 | 19 | 26.0 | #1,084 | 9 |
| 2016 | May 16 | 20 | 26.0 | #1,083 | 9 |
| 2016 | May 23 | 21 | 26.0 | #1,088 | 9 |
| 2016 | Jun 6 | 23 | 26.1 | #1,083 | 9 |
| 2016 | Jun 13 | 24 | 26.1 | #1,078 | 9 |
| 2016 | Jun 20 | 25 | 26.1 | #1,100 | 8 |
| 2016 | Jun 27 | 26 | 26.1 | #1,091 | 8 |
| 2016 | Jul 11 | 28 | 26.2 | #1,086 | 8 |
| 2016 | Jul 18 | 29 | 26.2 | #1,091 | 8 |
| 2016 | Jul 25 | 30 | 26.2 | #1,085 | 8 |
| 2016 | Aug 1 | 31 | 26.2 | #1,092 | 8 |
| 2016 | Aug 8 | 32 | 26.2 | #1,096 | 8 |
| 2016 | Aug 15 | 33 | 26.3 | #1,096 | 8 |
| 2016 | Aug 22 | 34 | 26.3 | #1,098 | 8 |
| 2016 | Aug 29 | 35 | 26.3 | #1,102 | 8 |
| 2016 | Sep 12 | 37 | 26.3 | #1,085 | 8 |
| 2016 | Sep 19 | 38 | 26.3 | #1,078 | 8 |
| 2016 | Sep 26 | 39 | 26.4 | #1,209 | 5 |
| 2016 | Oct 3 | 40 | 26.4 | #1,209 | 5 |
| 2016 | Oct 10 | 41 | 26.4 | #1,214 | 5 |
| 2016 | Oct 17 | 42 | 26.4 | #1,214 | 5 |
| 2016 | Oct 24 | 43 | 26.4 | #1,211 | 5 |
| 2016 | Oct 31 | 44 | 26.5 | #1,223 | 5 |