H2H data updated: 2026-09-14 00:00 UTC
Aiko Nakamura holds a 2–0 lead over Mariana Diaz-Oliva in their WTA head-to-head. Across 2 main-draw meetings, Aiko Nakamura leads 2–0 on hard courts. Most recently, Aiko Nakamura won the 2006 Bangkok round of 16 6-4 6-3.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Aiko Nakamura | 6-4 6-3 | Mariana Diaz-Oliva | Match data | Oct 13, 2006* | R16 | Bangkok | Tier III → modern equivalent WTA 250 | Hard |
| Aiko Nakamura | 7-6(3) 6-3 | Mariana Diaz-Oliva | Match data | Sep 28, 2006* | R32 | Korea Open | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mariana Diaz-Oliva | #452 | #42 | 696 | 1,652 | 86 | 130 | 39.8% | 0 | 0 | 0 | 0 | 1 | 1 |
| Aiko Nakamura | #730 | #47 | 569 | 1,644 | 50 | 76 | 39.7% | 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.
| Age | Mariana Diaz-Oliva | Aiko Nakamura | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | 1996 | 0–1 | 0.0% | #140 | 1,485 | 0 | 0 | 2004 | 1–2 | 33.3% | #135 | 1,505 | 0 | 0 |
| 21 | 1997 | 2–7 | 22.2% | #106 | 1,455 | 0 | 0 | 2005 | 11–13 | 45.8% | #71 | 1,568 | 0 | 0 |
| 22 | 1998 | 6–9 | 40.0% | #95 | 1,470 | 0 | 0 | 2006 | 19–18 | 51.4% | #57 | 1,620 | 0 | 0 |
| 23 | 1999 | 9–11 | 45.0% | #107 | 1,510 | 0 | 0 | 2007 | 13–21 | 38.2% | #66 | 1,548 | 0 | 0 |
| 24 | 2000 | 4–8 | 33.3% | #112 | 1,499 | 0 | 0 | 2008 | 5–18 | 21.7% | #146 | 1,489 | 0 | 0 |
| 25 | 2001 | 18–22 | 45.0% | #55 | 1,548 | 0 | 0 | 2009 | 0–2 | 0.0% | #224 | 1,461 | 0 | 0 |
| 26 | 2002 | 11–15 | 42.3% | #89 | 1,567 | 0 | 1 | 2010 | 1–1 | 50.0% | #677 | 1,475 | 0 | 0 |
| 27 | 2003 | 4–4 | 50.0% | #172 | 1,581 | 0 | 1 | 2011 | 0–1 | 0.0% | #231 | 1,468 | 0 | 0 |
| 28 | 2004 | 5–10 | 33.3% | #102 | 1,539 | 0 | 1 | — | — | — | — | — | — | — |
| 29 | 2005 | 22–23 | 48.9% | #58 | 1,606 | 0 | 1 | — | — | — | — | — | — | — |
| 30 | 2006 | 5–20 | 20.0% | #192 | 1,460 | 0 | 1 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Mariana Diaz-Oliva | Aiko Nakamura | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 20 | 1996 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 2004 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1997 | 0 | 1 | 1 | 0.0% | 2 | 5 | 7 | 28.6% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2005 | 9 | 10 | 19 | 47.4% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% |
| 22 | 1998 | 0 | 3 | 3 | 0.0% | 5 | 5 | 10 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | 2006 | 17 | 12 | 29 | 58.6% | 2 | 3 | 5 | 40.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% |
| 23 | 1999 | 0 | 1 | 1 | 0.0% | 8 | 9 | 17 | 47.1% | 1 | 1 | 2 | 50.0% | — | — | — | — | 2007 | 10 | 15 | 25 | 40.0% | 1 | 3 | 4 | 25.0% | 2 | 2 | 4 | 50.0% | 0 | 1 | 1 | 0.0% |
| 24 | 2000 | 1 | 2 | 3 | 33.3% | 3 | 6 | 9 | 33.3% | — | — | — | — | — | — | — | — | 2008 | 2 | 14 | 16 | 12.5% | 1 | 2 | 3 | 33.3% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 25 | 2001 | 4 | 8 | 12 | 33.3% | 14 | 12 | 26 | 53.8% | 0 | 2 | 2 | 0.0% | — | — | — | — | 2009 | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 26 | 2002 | 4 | 7 | 11 | 36.4% | 7 | 7 | 14 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2010 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2003 | 0 | 2 | 2 | 0.0% | 4 | 2 | 6 | 66.7% | — | — | — | — | — | — | — | — | 2011 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2004 | 4 | 7 | 11 | 36.4% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2005 | 8 | 11 | 19 | 42.1% | 12 | 10 | 22 | 54.5% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2006 | 3 | 10 | 13 | 23.1% | 2 | 8 | 10 | 20.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 24 | 52 | 76 | 31.6% | 58 | 68 | 126 | 46.0% | 4 | 10 | 14 | 28.6% | — | — | — | — | — | 40 | 56 | 96 | 41.7% | 4 | 9 | 13 | 30.8% | 5 | 8 | 13 | 38.5% | 1 | 3 | 4 | 25.0% |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Mariana Diaz-Oliva | Aiko Nakamura | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 20 | 1996 | 1486 | 100.0 | — | — | — | — | — | — | — | 33.3% | -0.67 | 0–1 | — | — | +0.07 | 2004 | 1505 | 108.0 | — | — | — | — | +23 | — | — | 33.3% | -1.17 | — | 1–0 | — | -0.35 |
| 21 | 1997 | 1456 | 102.2 | — | — | — | — | — | +55 | — | 25.0% | -1.38 | 0–2 | 0–2 | — | +0.10 | 2005 | 1568 | 117.9 | -3.08 | -1.83 | 0.770 | 44.8% | +2 | — | — | 45.8% | -0.30 | 6–5 (55%) | 1–5 (17%) | 99.1 | +0.24 |
| 22 | 1998 | 1471 | 104.3 | — | — | — | — | +8 | +58 | — | 43.3% | -0.47 | 1–1 | 3–3 (50%) | — | +1.39 | 2006 | 1621 | 117.5 | -1.07 | -2.00 | 0.920 | 47.9% | +24 | -78 | — | 50.6% | -0.13 | 5–6 (45%) | 5–1 (83%) | 101.1 | +1.14 |
| 23 | 1999 | 1511 | 99.1 | — | — | — | — | — | +15 | — | 41.3% | -0.44 | 5–1 (83%) | 3–2 (60%) | 105.7 | +1.34 | 2007 | 1548 | 108.1 | -3.29 | -1.84 | 0.891 | 47.2% | -11 | -43 | +34 | 37.3% | -0.84 | 5–4 (56%) | 1–6 (14%) | 97.1 | +0.20 |
| 24 | 2000 | 1500 | 102.9 | — | — | — | — | -35 | +12 | — | 33.3% | -0.89 | 2–3 (40%) | 3–4 (43%) | 98.0 | +0.33 | 2008 | 1489 | 112.6 | -3.75 | -4.17 | 0.729 | 43.7% | -29 | +17 | +95 | 22.0% | -2.16 | 3–3 (50%) | 2–1 (67%) | 102.7 | -1.31 |
| 25 | 2001 | 1548 | 115.4 | — | — | — | — | -74 | +72 | — | 42.7% | -0.76 | 7–4 (64%) | 4–1 (80%) | 108.0 | -0.32 | 2009 | 1461 | 93.4 | -2.15 | -0.86 | 0.675 | 40.3% | — | — | — | 20.0% | -2.60 | 0–1 | — | — | +0.24 |
| 26 | 2002 | 1568 | 108.2 | — | — | — | — | -86 | +51 | — | 46.4% | -0.36 | 2–4 (33%) | 1–4 (20%) | 95.3 | -0.04 | 2010 | 1475 | 101.1 | -2.97 | -1.43 | 0.680 | 40.8% | — | — | — | 40.0% | -2.00 | 1–0 | 1–0 | — | -0.01 |
| 27 | 2003 | 1581 | 107.7 | — | — | — | — | — | +98 | — | 37.5% | -0.06 | 2–0 | 1–2 (33%) | — | +0.45 | 2011 | 1469 | 95.0 | — | — | — | — | — | — | — | 0.0% | -5.50 | — | — | — | -0.13 |
| 28 | 2004 | 1540 | 108.8 | -1.83 | -0.74 | 0.856 | 46.7% | -69 | +94 | — | 32.4% | -1.12 | 3–1 (75%) | 2–2 (50%) | 102.8 | -0.24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2005 | 1606 | 122.7 | -1.27 | +1.04 | 0.989 | 50.0% | -69 | +54 | -120 | 48.4% | -0.26 | 7–4 (64%) | 6–6 (50%) | 106.4 | -0.48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2006 | 1460 | 104.0 | -4.32 | -0.65 | 0.866 | 46.5% | +14 | +88 | — | 28.8% | -1.46 | 2–9 (18%) | 2–5 (29%) | 90.3 | 0.00 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1653 | 112.9 | -3.15 | -0.20 | 0.897 | 47.5% | -53 | +56 | -120 | 40.3% | -0.68 | 31–30 (51%) | 25–31 (45%) | 100.1 | +1.21 | — | 1644 | 115.0 | -2.87 | -2.40 | 0.829 | 45.9% | +1 | -43 | +65 | 39.6% | -0.84 | 20–19 (51%) | 11–13 (46%) | 101.2 | +0.02 |
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 |
|---|---|---|---|---|---|
| Paola Suarez | 3 | 2 | 5 | Feb 27, 2003 | H2H |
| Anabel Medina Garrigues | 1 | 3 | 4 | Oct 12, 2006 | H2H |
| Nadia Petrova | 0 | 4 | 4 | Jan 5, 2006 | H2H |
| Anne Kremer | 2 | 2 | 4 | May 5, 2005 | H2H |
| Fabiola Zuluaga | 1 | 3 | 4 | Feb 18, 2005 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Patty Schnyder | 0 | 4 | 4 | Mar 7, 2008 | H2H |
| Akiko Morigami | 1 | 2 | 3 | May 22, 2008 | H2H |
| Flavia Pennetta | 3 | 0 | 3 | Jan 11, 2007 | H2H |
| Anabel Medina Garrigues | 1 | 2 | 3 | Oct 6, 2006 | H2H |
| Elena Vesnina | 0 | 2 | 2 | Jan 7, 2009 | H2H |