H2H data updated: 2026-09-14 00:00 UTC
Katie Obrien holds a 1–0 lead over Anastasiya Yakimova in their WTA head-to-head. Across 1 main-draw meeting, Katie Obrien leads 1–0 on hard courts. Most recently, Katie Obrien won the 2007 Tashkent round of 16 6-3 7-6(1).
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Katie Obrien | 6-3 7-6(1) | Anastasiya Yakimova | Match data | Oct 5, 2007* | R16 | Tashkent | Tier IV → modern equivalent WTA 250 | Hard |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Anastasiya Yakimova | #1,233 | #49 | 989 | 1,524 | 30 | 74 | 28.8% | 0 | 0 | 0 | 0 | 0 | 0 |
| Katie Obrien | #782 | #84 | 769 | 1,514 | 9 | 34 | 20.9% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Anastasiya Yakimova | Katie Obrien | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 2004 | 1–2 | 33.3% | #143 | 1,485 | 0 | 0 | 2004 | 0–1 | 0.0% | #387 | 1,492 | 0 | 0 |
| 2005 | 0–8 | 0.0% | #117 | 1,409 | 0 | 0 | 2005 | 0–1 | 0.0% | #267 | 1,492 | 0 | 0 |
| 2006 | 8–12 | 40.0% | #67 | 1,465 | 0 | 0 | 2006 | 0–3 | 0.0% | #187 | 1,461 | 0 | 0 |
| 2007 | 5–10 | 33.3% | #129 | 1,451 | 0 | 0 | 2007 | 4–3 | 57.1% | #127 | 1,501 | 0 | 0 |
| 2008 | 1–3 | 25.0% | #103 | 1,436 | 0 | 0 | 2008 | 2–8 | 20.0% | #159 | 1,450 | 0 | 0 |
| 2009 | 6–12 | 33.3% | #109 | 1,487 | 0 | 0 | 2009 | 1–9 | 10.0% | #88 | 1,390 | 0 | 0 |
| 2010 | 2–5 | 28.6% | #120 | 1,479 | 0 | 0 | 2010 | 2–8 | 20.0% | #179 | 1,370 | 0 | 0 |
| 2011 | 6–13 | 31.6% | #62 | 1,470 | 0 | 0 | 2011 | 0–1 | 0.0% | #357 | 1,365 | 0 | 0 |
| 2012 | 1–9 | 10.0% | #256 | 1,432 | 0 | 0 | — | — | — | — | — | — | — |
Rows are aligned in career order because complete birth data is unavailable. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Anastasiya Yakimova | Katie Obrien | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | ||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 2004 | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2004 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2005 | 0 | 4 | 4 | 0.0% | 0 | 4 | 4 | 0.0% | — | — | — | — | 2005 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2006 | 3 | 7 | 10 | 30.0% | 5 | 4 | 9 | 55.6% | 0 | 1 | 1 | 0.0% | 2006 | — | — | — | — | — | — | — | — | 0 | 3 | 3 | 0.0% |
| 2007 | 4 | 5 | 9 | 44.4% | 1 | 4 | 5 | 20.0% | 0 | 1 | 1 | 0.0% | 2007 | 2 | 1 | 3 | 66.7% | — | — | — | — | 2 | 2 | 4 | 50.0% |
| 2008 | 0 | 2 | 2 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | 2008 | 1 | 3 | 4 | 25.0% | 0 | 2 | 2 | 0.0% | 1 | 3 | 4 | 25.0% |
| 2009 | 3 | 6 | 9 | 33.3% | 3 | 5 | 8 | 37.5% | 0 | 1 | 1 | 0.0% | 2009 | 1 | 4 | 5 | 20.0% | 0 | 3 | 3 | 0.0% | 0 | 2 | 2 | 0.0% |
| 2010 | 2 | 2 | 4 | 50.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | 2010 | 1 | 4 | 5 | 20.0% | 1 | 2 | 3 | 33.3% | 0 | 2 | 2 | 0.0% |
| 2011 | 3 | 7 | 10 | 30.0% | 2 | 5 | 7 | 28.6% | 1 | 1 | 2 | 50.0% | 2011 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2012 | 0 | 5 | 5 | 0.0% | 0 | 3 | 3 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 16 | 39 | 55 | 29.1% | 12 | 29 | 41 | 29.3% | 2 | 6 | 8 | 25.0% | Career | 5 | 12 | 17 | 29.4% | 1 | 7 | 8 | 12.5% | 3 | 15 | 18 | 16.7% |
Rows are aligned in career order because complete birth data is unavailable. Detailed serve and return statistics available for 68/101 of Anastasiya Yakimova's and 31/42 of Katie Obrien's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Anastasiya Yakimova | Katie Obrien | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% |
| 2005 | 2/8 | 1.0 | 4.5 | 60.1% | 44.5% | 38.2% | 34.3% | 31.3% | 41.8% | 43.3% | 2005 | 1/1 | 0.0 | 4.0 | 51.2% | 63.6% | 47.6% | 0.0% | — | 55.8% | 20.0% |
| 2006 | 8/20 | 0.3 | 2.8 | 65.8% | 55.1% | 41.9% | 46.8% | 53.7% | 49.9% | 45.3% | 2006 | 2/3 | 1.5 | 6.0 | 58.1% | 57.7% | 42.1% | 37.9% | 62.5% | 51.1% | 42.8% |
| 2007 | 10/15 | 0.5 | 4.1 | 61.2% | 58.4% | 38.2% | 50.0% | 41.2% | 50.5% | 41.0% | 2007 | 4/7 | 2.3 | 5.3 | 55.7% | 62.5% | 36.7% | 44.9% | 36.4% | 51.4% | 42.2% |
| 2008 | 3/4 | 0.7 | 4.7 | 64.8% | 56.3% | 29.4% | 54.6% | 34.0% | 46.5% | 44.2% | 2008 | 6/10 | 1.5 | 6.7 | 54.5% | 62.6% | 43.3% | 54.5% | 42.0% | 53.7% | 42.6% |
| 2009 | 16/18 | 0.3 | 3.2 | 64.4% | 54.4% | 41.5% | 45.4% | 50.0% | 49.5% | 49.4% | 2009 | 9/10 | 1.2 | 6.6 | 59.0% | 54.7% | 35.8% | 45.2% | 44.2% | 46.9% | 39.4% |
| 2010 | 7/7 | 0.6 | 5.6 | 60.7% | 56.2% | 36.1% | 41.3% | 41.7% | 48.5% | 45.2% | 2010 | 8/10 | 1.6 | 6.3 | 59.5% | 54.8% | 39.7% | 41.7% | 33.7% | 49.0% | 37.8% |
| 2011 | 13/19 | 0.6 | 4.0 | 61.5% | 54.6% | 39.5% | 43.7% | 50.6% | 49.1% | 43.0% | 2011 | 1/1 | 2.0 | 5.0 | 62.9% | 46.2% | 30.4% | 41.7% | 60.0% | 40.3% | 37.5% |
| 2012 | 9/10 | 1.4 | 5.4 | 57.5% | 57.1% | 42.5% | 40.1% | 37.3% | 50.8% | 37.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | 68/104 | 0.6 | 4.1 | 62.1% | 55.5% | 39.6% | 44.9% | 45.5% | 49.3% | 44.0% | Career | 31/43 | 1.5 | 6.2 | 57.6% | 57.5% | 39.0% | 44.0% | 40.3% | 49.7% | 39.5% |
Rows are aligned in career order because complete birth data is unavailable. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Anastasiya Yakimova | Katie Obrien | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
| 2004 | 1485 | 97.8 | — | — | — | — | — | — | — | 37.5% | -0.37 | 1–1 | 1–0 | — | +0.35 | 2004 | 1492 | 98.4 | — | — | — | — | — | — | — | 0.0% | -2.00 | — | — | — | -0.06 |
| 2005 | 1409 | 92.1 | -2.48 | -1.57 | 0.745 | 42.1% | +67 | +26 | — | 5.9% | -3.12 | 0–1 | 0–2 | — | -0.20 | 2005 | 1492 | 103.3 | +4.63 | +2.47 | 0.453 | 37.5% | — | — | — | 0.0% | -3.50 | — | — | — | -0.29 |
| 2006 | 1465 | 113.8 | -2.55 | +0.63 | 0.903 | 47.3% | -11 | +71 | — | 40.0% | -0.53 | 3–2 (60%) | 0–2 | — | +0.10 | 2006 | 1462 | 94.0 | -0.38 | +0.43 | 0.876 | 47.0% | — | — | +15 | 25.0% | -1.50 | 0–2 | 0–1 | — | +0.02 |
| 2007 | 1452 | 103.6 | -2.93 | -1.83 | 0.829 | 45.7% | +36 | +24 | — | 35.3% | -0.94 | 4–2 (67%) | 0–2 | — | +0.86 | 2007 | 1502 | 98.4 | -1.08 | -1.93 | 0.868 | 46.8% | +35 | — | +18 | 53.3% | -0.33 | 1–0 | 1–0 | — | +0.89 |
| 2008 | 1437 | 90.5 | -1.66 | +0.51 | 0.826 | 45.5% | — | — | — | 22.2% | -2.11 | 1–0 | 0–1 | — | +0.40 | 2008 | 1451 | 98.3 | -1.41 | -1.77 | 0.920 | 48.4% | +67 | — | +20 | 30.8% | -1.19 | 2–4 (33%) | 3–0 (100%) | — | +0.44 |
| 2009 | 1488 | 119.5 | -3.32 | +3.76 | 0.979 | 49.5% | -8 | +26 | — | 41.0% | -0.85 | 1–4 (20%) | 2–0 | — | -0.73 | 2009 | 1391 | 89.7 | -5.01 | -2.96 | 0.742 | 43.3% | +96 | +66 | — | 21.7% | -2.04 | 0–3 (0%) | 0–1 | — | +0.39 |
| 2010 | 1480 | 98.1 | -3.00 | -1.19 | 0.878 | 46.8% | +28 | — | — | 35.3% | -1.24 | 1–4 (20%) | — | — | +0.26 | 2010 | 1371 | 97.5 | -2.84 | -3.79 | 0.741 | 43.8% | +103 | +65 | — | 29.2% | -1.67 | 1–3 (25%) | 1–0 | — | +0.42 |
| 2011 | 1470 | 108.8 | -3.52 | -1.65 | 0.844 | 45.9% | +27 | -8 | — | 31.0% | -1.26 | 3–3 (50%) | 1–0 | — | +0.13 | 2011 | 1366 | 99.1 | -2.49 | -4.08 | 0.628 | 39.1% | — | — | — | 0.0% | -4.00 | — | — | — | -0.01 |
| 2012 | 1432 | 98.0 | -3.56 | -2.05 | 0.760 | 43.9% | +11 | -1 | — | 17.4% | -2.48 | 1–2 (33%) | 0–1 | — | -0.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1525 | 107.6 | -3.11 | -0.04 | 0.869 | 46.6% | +17 | +28 | — | 32.1% | -1.26 | 15–19 (44%) | 4–8 (33%) | 97.9 | +0.88 | Career | 1514 | 93.8 | -2.56 | -2.45 | 0.785 | 44.8% | +80 | +66 | +18 | 29.4% | -1.51 | 4–12 (25%) | 5–2 (71%) | 95.3 | +4.19 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Anabel Medina Garrigues | 0 | 4 | 4 | Jul 30, 2009 | H2H |
| Lucie Safarova | 0 | 3 | 3 | May 29, 2012 | H2H |
| Klara Koukalova | 0 | 3 | 3 | Apr 29, 2011 | H2H |
| Julia Goerges | 0 | 2 | 2 | Jun 29, 2012 | H2H |
| Varvara Lepchenko | 1 | 1 | 2 | Apr 4, 2012 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Alla Kudryavtseva | 1 | 1 | 2 | Sep 17, 2009 | H2H |
| Monica Niculescu | 0 | 2 | 2 | Jul 16, 2009 | H2H |
| Olga Govortsova | 0 | 2 | 2 | May 26, 2009 | H2H |
| Kimiko Date | 0 | 1 | 1 | Jun 22, 2011 | H2H |
| Ekaterina Ivanova | 0 | 1 | 1 | Sep 23, 2010 | H2H |