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 |
|---|---|---|---|---|---|
| 2012 | Jun 25 | 26 | 22.1 | #1,384 | 2 |
| 2012 | Jun 18 | 25 | 22.1 | #1,377 | 2 |
| 2012 | Jun 11 | 24 | 22.1 | #1,250 | 3 |
| 2012 | May 28 | 22 | 22.0 | #1,275 | 3 |
| 2012 | May 21 | 21 | 22.0 | #1,265 | 3 |
| 2012 | May 14 | 20 | 22.0 | #1,263 | 3 |
| 2012 | May 7 | 19 | 22.0 | #1,263 | 3 |
| 2012 | Apr 30 | 18 | 22.0 | #1,268 | 3 |
| 2012 | Apr 23 | 17 | 21.9 | #1,266 | 3 |
| 2012 | Apr 16 | 16 | 21.9 | #1,387 | 2 |
| 2012 | Apr 9 | 15 | 21.9 | #1,387 | 2 |
| 2012 | Apr 2 | 14 | 21.9 | #1,374 | 2 |
| 2012 | Mar 19 | 12 | 21.8 | #1,369 | 2 |
| 2012 | Mar 5 | 10 | 21.8 | #1,606 | 1 |
| 2012 | Feb 27 | 9 | 21.8 | #1,499 | 1 |
| 2012 | Feb 20 | 8 | 21.8 | #1,498 | 1 |
| 2012 | Feb 13 | 7 | 21.7 | #1,502 | 1 |
| 2012 | Feb 6 | 6 | 21.7 | #1,502 | 1 |
| 2012 | Jan 30 | 5 | 21.7 | #1,502 | 1 |
| 2012 | Jan 16 | 3 | 21.7 | #1,513 | 1 |
| 2012 | Jan 9 | 2 | 21.7 | #1,512 | 1 |
| 2012 | Jan 2 | 1 | 21.6 | #1,511 | 1 |
| 2011 | Dec 26 | 52 | 21.6 | #1,510 | 1 |
| 2011 | Dec 19 | 51 | 21.6 | #1,508 | 1 |
| 2011 | Dec 12 | 50 | 21.6 | #1,511 | 1 |
| 2011 | Dec 5 | 49 | 21.6 | #1,513 | 1 |
| 2011 | Nov 28 | 48 | 21.5 | #1,514 | 1 |
| 2011 | Nov 21 | 47 | 21.5 | #1,511 | 1 |
| 2011 | Nov 14 | 46 | 21.5 | #1,511 | 1 |
| 2011 | Nov 7 | 45 | 21.5 | #1,514 | 1 |
| 2011 | Oct 31 | 44 | 21.5 | #1,519 | 1 |
| 2011 | Oct 24 | 43 | 21.4 | #1,525 | 1 |
| 2011 | Oct 17 | 42 | 21.4 | #1,534 | 1 |
| 2011 | Oct 10 | 41 | 21.4 | #1,531 | 1 |
| 2011 | Oct 3 | 40 | 21.4 | #1,536 | 1 |
| 2011 | Sep 26 | 39 | 21.4 | #1,523 | 1 |
| 2011 | Sep 19 | 38 | 21.3 | #1,520 | 1 |
| 2011 | Sep 12 | 37 | 21.3 | #1,515 | 1 |
| 2011 | Aug 29 | 35 | 21.3 | #1,508 | 1 |
| 2011 | Aug 22 | 34 | 21.3 | #1,504 | 1 |
| 2011 | Aug 15 | 33 | 21.3 | #1,496 | 1 |
| 2011 | Aug 8 | 32 | 21.2 | #1,498 | 1 |
| 2011 | Aug 1 | 31 | 21.2 | #1,490 | 1 |
| 2011 | Jul 25 | 30 | 21.2 | #1,489 | 1 |
| 2011 | Jul 18 | 29 | 21.2 | #1,481 | 1 |
| 2011 | Jul 11 | 28 | 21.2 | #1,471 | 1 |
| 2011 | Jul 4 | 27 | 21.1 | #1,474 | 1 |
| 2011 | Jun 20 | 25 | 21.1 | #1,581 | 1 |
| 2010 | Jun 28 | 26 | 20.1 | #1,538 | 1 |
| 2010 | Jun 21 | 25 | 20.1 | #1,538 | 1 |
| 2010 | Jun 14 | 24 | 20.1 | #1,445 | 1 |
| 2010 | Jun 7 | 23 | 20.1 | #1,445 | 1 |
| 2010 | May 31 | 22 | 20.0 | #1,468 | 1 |
| 2010 | May 24 | 21 | 20.0 | #1,468 | 1 |
| 2010 | May 17 | 20 | 20.0 | #1,476 | 1 |
| 2010 | May 10 | 19 | 20.0 | #1,477 | 1 |
| 2010 | May 3 | 18 | 20.0 | #1,474 | 1 |
| 2010 | Apr 26 | 17 | 19.9 | #1,478 | 1 |
| 2010 | Apr 19 | 16 | 19.9 | #1,481 | 1 |
| 2010 | Apr 12 | 15 | 19.9 | #1,475 | 1 |
| 2010 | Apr 5 | 14 | 19.9 | #1,473 | 1 |
| 2010 | Mar 29 | 13 | 19.9 | #1,476 | 1 |
| 2010 | Mar 22 | 12 | 19.9 | #1,476 | 1 |
| 2010 | Mar 15 | 11 | 19.8 | #1,481 | 1 |
| 2010 | Mar 8 | 10 | 19.8 | #1,481 | 1 |
| 2010 | Mar 1 | 9 | 19.8 | #1,484 | 1 |
| 2010 | Feb 22 | 8 | 19.8 | #1,485 | 1 |
| 2010 | Feb 15 | 7 | 19.8 | #1,488 | 1 |
| 2010 | Feb 1 | 5 | 19.7 | #1,497 | 1 |
| 2010 | Jan 25 | 4 | 19.7 | #1,503 | 1 |
| 2010 | Jan 18 | 3 | 19.7 | #1,503 | 1 |
| 2010 | Jan 11 | 2 | 19.7 | #1,504 | 1 |
| 2010 | Jan 4 | 1 | 19.6 | #1,503 | 1 |
| 2009 | Dec 28 | 53 | 19.6 | #1,505 | 1 |
| 2009 | Dec 21 | 52 | 19.6 | #1,511 | 1 |
| 2009 | Dec 14 | 51 | 19.6 | #1,509 | 1 |
| 2009 | Dec 7 | 50 | 19.6 | #1,508 | 1 |
| 2009 | Nov 30 | 49 | 19.5 | #1,516 | 1 |
| 2009 | Nov 23 | 48 | 19.5 | #1,519 | 1 |
| 2009 | Nov 16 | 47 | 19.5 | #1,523 | 1 |
| 2009 | Nov 9 | 46 | 19.5 | #1,532 | 1 |
| 2009 | Nov 2 | 45 | 19.5 | #1,537 | 1 |
| 2009 | Oct 26 | 44 | 19.4 | #1,542 | 1 |
| 2009 | Oct 19 | 43 | 19.4 | #1,555 | 1 |
| 2009 | Oct 12 | 42 | 19.4 | #1,564 | 1 |
| 2009 | Oct 5 | 41 | 19.4 | #1,581 | 1 |
| 2009 | Sep 28 | 40 | 19.4 | #1,587 | 1 |
| 2009 | Sep 21 | 39 | 19.4 | #1,602 | 1 |
| 2009 | Sep 14 | 38 | 19.3 | #1,622 | 1 |
| 2009 | Sep 7 | 37 | 19.3 | #1,701 | 1 |
| 2009 | Aug 31 | 36 | 19.3 | #1,701 | 1 |
| 2009 | Aug 24 | 35 | 19.3 | #1,688 | 1 |
| 2009 | Aug 17 | 34 | 19.3 | #1,699 | 1 |
| 2009 | Aug 10 | 33 | 19.2 | #1,714 | 1 |
| 2009 | Aug 3 | 32 | 19.2 | #1,726 | 1 |
| 2009 | Jul 27 | 31 | 19.2 | #1,735 | 1 |
| 2009 | Jul 20 | 30 | 19.2 | #1,742 | 1 |
| 2009 | Jul 13 | 29 | 19.2 | #1,766 | 1 |
| 2009 | Jul 6 | 28 | 19.1 | #1,776 | 1 |