H2H data updated: 2026-09-13 00:00 UTC
Michaella Krajicek holds a 1–0 lead over Katie Obrien in their WTA head-to-head. Across 1 main-draw meeting, Michaella Krajicek leads 1–0 on grass. Most recently, Michaella Krajicek won the 2007 Wimbledon second round 6-0 6-1.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Michaella Krajicek | 6-0 6-1 | Katie Obrien | Match data | Jun 28, 2007* | R64 | Wimbledon | Grand Slam | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Michaella Krajicek | #1,134 | #30 | 918 | 1,802 | 89 | 98 | 47.6% | 0 | 0 | 0 | 0 | 3 | 3 |
| 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.
| Michaella Krajicek | Katie Obrien | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 2003 | 0–1 | 0.0% | — | 1,489 | 0 | 0 | 2004 | 0–1 | 0.0% | #387 | 1,492 | 0 | 0 |
| 2004 | 0–2 | 0.0% | #244 | 1,471 | 0 | 0 | 2005 | 0–1 | 0.0% | #267 | 1,492 | 0 | 0 |
| 2005 | 14–8 | 63.6% | #63 | 1,653 | 0 | 1 | 2006 | 0–3 | 0.0% | #187 | 1,461 | 0 | 0 |
| 2006 | 26–16 | 61.9% | #35 | 1,752 | 0 | 3 | 2007 | 4–3 | 57.1% | #127 | 1,501 | 0 | 0 |
| 2007 | 21–25 | 45.7% | #33 | 1,670 | 0 | 3 | 2008 | 2–8 | 20.0% | #159 | 1,450 | 0 | 0 |
| 2008 | 3–13 | 18.8% | #203 | 1,536 | 0 | 3 | 2009 | 1–9 | 10.0% | #88 | 1,390 | 0 | 0 |
| 2009 | 4–7 | 36.4% | #128 | 1,536 | 0 | 3 | 2010 | 2–8 | 20.0% | #179 | 1,370 | 0 | 0 |
| 2010 | 2–5 | 28.6% | #145 | 1,506 | 0 | 3 | 2011 | 0–1 | 0.0% | #357 | 1,365 | 0 | 0 |
| 2011 | 9–6 | 60.0% | #93 | 1,589 | 0 | 3 | — | — | — | — | — | — | — |
| 2012 | 7–9 | 43.8% | #167 | 1,562 | 0 | 3 | — | — | — | — | — | — | — |
| 2013 | 1–4 | 20.0% | #282 | 1,536 | 0 | 3 | — | — | — | — | — | — | — |
| 2014 | 1–1 | 50.0% | #273 | 1,545 | 0 | 3 | — | — | — | — | — | — | — |
| 2015 | 1–1 | 50.0% | #178 | 1,549 | 0 | 3 | — | — | — | — | — | — | — |
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.
| Michaella Krajicek | Katie Obrien | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 2003 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2004 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 2004 | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2005 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 2005 | 11 | 5 | 16 | 68.8% | 1 | 2 | 3 | 33.3% | 2 | 1 | 3 | 66.7% | — | — | — | — | 2006 | — | — | — | — | — | — | — | — | 0 | 3 | 3 | 0.0% | — | — | — | — |
| 2006 | 14 | 9 | 23 | 60.9% | 7 | 6 | 13 | 53.8% | 5 | 1 | 6 | 83.3% | — | — | — | — | 2007 | 2 | 1 | 3 | 66.7% | — | — | — | — | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 2007 | 9 | 14 | 23 | 39.1% | 7 | 7 | 14 | 50.0% | 5 | 3 | 8 | 62.5% | 0 | 1 | 1 | 0.0% | 2008 | 1 | 3 | 4 | 25.0% | 0 | 2 | 2 | 0.0% | 1 | 3 | 4 | 25.0% | — | — | — | — |
| 2008 | 0 | 4 | 4 | 0.0% | 0 | 6 | 6 | 0.0% | 3 | 3 | 6 | 50.0% | — | — | — | — | 2009 | 1 | 4 | 5 | 20.0% | 0 | 3 | 3 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 2009 | 3 | 5 | 8 | 37.5% | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | 2010 | 1 | 4 | 5 | 20.0% | 1 | 2 | 3 | 33.3% | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 2010 | 1 | 3 | 4 | 25.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2011 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 2011 | 9 | 5 | 14 | 64.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2012 | 5 | 5 | 10 | 50.0% | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2013 | 0 | 2 | 2 | 0.0% | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2014 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2015 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 52 | 53 | 105 | 49.5% | 18 | 26 | 44 | 40.9% | 19 | 18 | 37 | 51.4% | 0 | 1 | 1 | 0.0% | 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 134/184 of Michaella Krajicek'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.
| Michaella Krajicek | 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 | 5/22 | 4.4 | 4.8 | 58.1% | 66.3% | 43.8% | 49.5% | 51.2% | 56.2% | 43.3% | 2005 | 1/1 | 0.0 | 4.0 | 51.2% | 63.6% | 47.6% | 0.0% | — | 55.8% | 20.0% |
| 2006 | 17/42 | 3.8 | 4.1 | 60.9% | 62.1% | 45.9% | 59.5% | 48.6% | 55.8% | 35.8% | 2006 | 2/3 | 1.5 | 6.0 | 58.1% | 57.7% | 42.1% | 37.9% | 62.5% | 51.1% | 42.8% |
| 2007 | 39/46 | 4.5 | 5.1 | 59.9% | 69.1% | 44.6% | 54.0% | 49.3% | 59.2% | 44.1% | 2007 | 4/7 | 2.3 | 5.3 | 55.7% | 62.5% | 36.7% | 44.9% | 36.4% | 51.4% | 42.2% |
| 2008 | 16/16 | 3.5 | 4.8 | 60.6% | 61.0% | 45.5% | 39.9% | 46.1% | 54.8% | 37.2% | 2008 | 6/10 | 1.5 | 6.7 | 54.5% | 62.6% | 43.3% | 54.5% | 42.0% | 53.7% | 42.6% |
| 2009 | 11/11 | 2.6 | 5.6 | 59.8% | 65.4% | 48.9% | 58.8% | 39.7% | 58.8% | 37.8% | 2009 | 9/10 | 1.2 | 6.6 | 59.0% | 54.7% | 35.8% | 45.2% | 44.2% | 46.9% | 39.4% |
| 2010 | 7/7 | 4.0 | 5.4 | 60.9% | 61.2% | 36.9% | 48.0% | 53.7% | 51.7% | 39.3% | 2010 | 8/10 | 1.6 | 6.3 | 59.5% | 54.8% | 39.7% | 41.7% | 33.7% | 49.0% | 37.8% |
| 2011 | 14/15 | 6.1 | 4.1 | 52.7% | 76.4% | 48.5% | 45.5% | 36.0% | 63.2% | 38.2% | 2011 | 1/1 | 2.0 | 5.0 | 62.9% | 46.2% | 30.4% | 41.7% | 60.0% | 40.3% | 37.5% |
| 2012 | 16/16 | 5.6 | 6.9 | 52.9% | 67.5% | 45.5% | 45.1% | 33.8% | 57.1% | 38.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2013 | 5/5 | 6.0 | 8.2 | 51.0% | 65.0% | 40.1% | 47.1% | 53.3% | 53.1% | 38.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2014 | 2/2 | 8.0 | 2.0 | 63.2% | 74.3% | 55.9% | 55.0% | 52.4% | 67.6% | 37.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2015 | 2/2 | 18.5 | 2.5 | 67.9% | 74.8% | 50.7% | 65.3% | 56.3% | 67.0% | 23.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | 134/187 | 4.7 | 5.1 | 58.3% | 67.0% | 45.4% | 50.9% | 45.4% | 57.9% | 39.5% | 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.
| Michaella Krajicek | 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 |
| 2003 | 1490 | 95.6 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.01 | 2004 | 1492 | 98.4 | — | — | — | — | — | — | — | 0.0% | -2.00 | — | — | — | -0.06 |
| 2004 | 1472 | 98.0 | — | — | — | — | — | — | — | 33.3% | -3.33 | 0–1 | 1–0 | — | -0.11 | 2005 | 1492 | 103.3 | +4.63 | +2.47 | 0.453 | 37.5% | — | — | — | 0.0% | -3.50 | — | — | — | -0.29 |
| 2005 | 1653 | 123.1 | -0.34 | -0.48 | 0.988 | 50.3% | +4 | -140 | -95 | 60.0% | +0.98 | 6–4 (60%) | 2–3 (40%) | 102.6 | +0.45 | 2006 | 1462 | 94.0 | -0.38 | +0.43 | 0.876 | 47.0% | — | — | +15 | 25.0% | -1.50 | 0–2 | 0–1 | — | +0.02 |
| 2006 | 1752 | 128.7 | +0.10 | -4.98 | 0.810 | 46.4% | -10 | -161 | -31 | 54.0% | +0.30 | 10–1 (91%) | 4–6 (40%) | 109.2 | -1.86 | 2007 | 1502 | 98.4 | -1.08 | -1.93 | 0.868 | 46.8% | +35 | — | +18 | 53.3% | -0.33 | 1–0 | 1–0 | — | +0.89 |
| 2007 | 1671 | 133.9 | +2.45 | +0.06 | 1.081 | 51.6% | -42 | -36 | +109 | 46.7% | +0.27 | 7–8 (47%) | 3–13 (19%) | 92.8 | -0.19 | 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 |
| 2008 | 1536 | 99.3 | -1.35 | -4.34 | 0.823 | 45.9% | +17 | -23 | +207 | 27.0% | -1.33 | 1–4 (20%) | 2–2 (50%) | 94.8 | +0.74 | 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 |
| 2009 | 1536 | 114.7 | +1.40 | -2.80 | 0.919 | 48.8% | +22 | — | +168 | 40.7% | -0.74 | 2–3 (40%) | 3–0 (100%) | — | -0.19 | 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 |
| 2010 | 1507 | 96.3 | -2.93 | -3.02 | 0.815 | 45.9% | +30 | — | — | 31.3% | -1.25 | 1–1 | 1–0 | — | +0.16 | 2011 | 1366 | 99.1 | -2.49 | -4.08 | 0.628 | 39.1% | — | — | — | 0.0% | -4.00 | — | — | — | -0.01 |
| 2011 | 1589 | 120.2 | +2.85 | -3.04 | 1.037 | 50.4% | +35 | — | — | 57.1% | +0.40 | 3–2 (60%) | 3–1 (75%) | 103.9 | +1.00 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2012 | 1562 | 112.0 | -0.14 | -3.52 | 0.895 | 47.7% | +61 | -54 | — | 44.4% | -0.53 | 4–2 (67%) | 4–1 (80%) | 104.8 | +0.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2013 | 1536 | 98.4 | -0.64 | -2.23 | 0.809 | 45.9% | — | — | +55 | 33.3% | -1.33 | 0–2 | 0–2 | — | -0.28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2014 | 1546 | 103.0 | +2.61 | -2.09 | 1.167 | 52.6% | — | — | — | 40.0% | +0.80 | 1–0 | 0–2 | — | +0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2015 | 1549 | 102.0 | +0.78 | -1.05 | 0.709 | 47.8% | — | — | — | 60.0% | -0.20 | 0–1 | 1–0 | — | +0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2017 | 1529 | 92.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2018 | 1512 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2024 | 1502 | 97.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1803 | 124.4 | +0.82 | -2.41 | 0.938 | 48.8% | +3 | -84 | +80 | 47.2% | -0.05 | 35–29 (55%) | 24–30 (44%) | 100.5 | +0.04 | 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 |
|---|---|---|---|---|---|
| Lucie Safarova | 2 | 3 | 5 | Jun 10, 2011 | H2H |
| Dinara Safina | 1 | 4 | 5 | Jun 22, 2007 | H2H |
| Marion Bartoli | 0 | 4 | 4 | Mar 5, 2009 | H2H |
| Sania Mirza | 4 | 0 | 4 | Jun 20, 2008 | H2H |
| Severine Beltrame | 3 | 1 | 4 | Aug 8, 2007 | 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 |