H2H data updated: 2026-09-14 00:00 UTC
Naoko Sawamatsu holds a 3–0 lead over Katarina Studenikova in their WTA head-to-head. Across 3 main-draw meetings, Naoko Sawamatsu leads 2–0 on hard courts and 1–0 on clay. Most recently, Naoko Sawamatsu won the 1995 Key Biscayne round of 64 6-2 6-3.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Naoko Sawamatsu | 6-2 6-3 | Katarina Studenikova | Match data | Mar 19, 1995* | R64 | Key Biscayne | Tier I → modern equivalent WTA 1000 | Hard |
| Naoko Sawamatsu | 6-1 7-6 | Katarina Studenikova | Match data | May 19, 1994* | R32 | Strasbourg Open | Tier III → modern equivalent WTA 250 | Clay |
| Naoko Sawamatsu | 7-6 6-4 | Katarina Studenikova | Match data | Mar 13, 1994* | R64 | Key Biscayne | Tier I → modern equivalent WTA 1000 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Naoko Sawamatsu | #266 | #14 | 881 | 1,970 | 183 | 129 | 58.7% | 0 | 0 | 0 | 0 | 4 | 4 |
| Katarina Studenikova | #531 | #31 | 801 | 1,746 | 64 | 93 | 40.8% | 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 | Naoko Sawamatsu | Katarina Studenikova | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 1989 | 0–2 | 0.0% | #262 | 1,477 | 0 | 0 | — | — | — | — | — | — | — |
| 17 | 1990 | 14–6 | 70.0% | #31 | 1,669 | 0 | 1 | — | — | — | — | — | — | — |
| 18 | 1991 | 21–16 | 56.8% | #33 | 1,723 | 0 | 1 | — | — | — | — | — | — | — |
| 19 | 1992 | 23–13 | 63.9% | #24 | 1,856 | 0 | 1 | — | — | — | — | — | — | — |
| 20 | 1993 | 24–13 | 64.9% | #28 | 1,853 | 0 | 2 | 1993 | 6–9 | 40.0% | #77 | 1,519 | 0 | 0 |
| 21 | 1994 | 24–12 | 66.7% | #26 | 1,870 | 0 | 3 | 1994 | 7–11 | 38.9% | #118 | 1,551 | 0 | 0 |
| 22 | 1995 | 22–13 | 62.9% | #17 | 1,847 | 0 | 3 | 1995 | 8–11 | 42.1% | #74 | 1,604 | 0 | 0 |
| 23 | 1996 | 19–17 | 52.8% | #38 | 1,811 | 0 | 3 | 1996 | 25–21 | 54.3% | #31 | 1,717 | 0 | 0 |
| 24 | 1997 | 24–19 | 55.8% | #34 | 1,849 | 0 | 4 | 1997 | 10–21 | 32.3% | #72 | 1,637 | 0 | 0 |
| 25 | 1998 | 12–18 | 40.0% | #55 | 1,721 | 0 | 4 | 1998 | 5–13 | 27.8% | #106 | 1,577 | 0 | 0 |
| 26 | — | — | — | — | — | — | — | 1999 | 3–7 | 30.0% | #206 | 1,538 | 0 | 0 |
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 | Naoko Sawamatsu | Katarina Studenikova | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 16 | 1989 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1990 | 13 | 3 | 16 | 81.3% | 1 | 1 | 2 | 50.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1991 | 13 | 10 | 23 | 56.5% | 7 | 3 | 10 | 70.0% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1992 | 13 | 7 | 20 | 65.0% | 5 | 4 | 9 | 55.6% | 3 | 1 | 4 | 75.0% | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1993 | 12 | 8 | 20 | 60.0% | 7 | 2 | 9 | 77.8% | 4 | 2 | 6 | 66.7% | 1 | 1 | 2 | 50.0% | 1993 | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 4 | 4 | 8 | 50.0% |
| 21 | 1994 | 15 | 7 | 22 | 68.2% | 5 | 3 | 8 | 62.5% | 4 | 2 | 6 | 66.7% | — | — | — | — | 1994 | 5 | 6 | 11 | 45.5% | 2 | 4 | 6 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 22 | 1995 | 14 | 8 | 22 | 63.6% | 4 | 3 | 7 | 57.1% | 2 | 1 | 3 | 66.7% | 2 | 1 | 3 | 66.7% | 1995 | 5 | 5 | 10 | 50.0% | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 23 | 1996 | 11 | 11 | 22 | 50.0% | 4 | 3 | 7 | 57.1% | 2 | 2 | 4 | 50.0% | 2 | 1 | 3 | 66.7% | 1996 | 8 | 10 | 18 | 44.4% | 9 | 5 | 14 | 64.3% | 3 | 1 | 4 | 75.0% | 5 | 5 | 10 | 50.0% |
| 24 | 1997 | 20 | 12 | 32 | 62.5% | 0 | 3 | 3 | 0.0% | 2 | 2 | 4 | 50.0% | 2 | 2 | 4 | 50.0% | 1997 | 1 | 5 | 6 | 16.7% | 6 | 10 | 16 | 37.5% | 0 | 2 | 2 | 0.0% | 3 | 4 | 7 | 42.9% |
| 25 | 1998 | 6 | 10 | 16 | 37.5% | 3 | 5 | 8 | 37.5% | 2 | 2 | 4 | 50.0% | 1 | 1 | 2 | 50.0% | 1998 | 0 | 3 | 3 | 0.0% | 3 | 7 | 10 | 30.0% | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1999 | 0 | 1 | 1 | 0.0% | 1 | 4 | 5 | 20.0% | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% |
| Career | — | 117 | 77 | 194 | 60.3% | 36 | 27 | 63 | 57.1% | 20 | 16 | 36 | 55.6% | 10 | 9 | 19 | 52.6% | — | 21 | 33 | 54 | 38.9% | 24 | 35 | 59 | 40.7% | 4 | 8 | 12 | 33.3% | 15 | 17 | 32 | 46.9% |
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 | Naoko Sawamatsu | Katarina Studenikova | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 16 | 1989 | 1477 | 96.0 | — | — | — | — | — | — | — | 20.0% | -2.20 | 0–1 | — | — | +0.30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1990 | 1669 | 124.7 | — | — | — | — | +57 | — | — | 62.5% | +0.77 | 6–2 (75%) | 5–1 (83%) | 110.2 | +1.75 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1991 | 1724 | 133.2 | — | — | — | — | -8 | -44 | -170 | 55.4% | +0.49 | 5–6 (45%) | 1–1 | — | +2.14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1992 | 1857 | 143.8 | — | — | — | — | -17 | -155 | -248 | 60.7% | +0.42 | 7–5 (58%) | 4–2 (67%) | 104.0 | -0.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1993 | 1853 | 139.0 | — | — | — | — | -68 | -33 | -152 | 62.1% | +0.86 | 7–6 (54%) | 2–0 | — | +0.17 | 1993 | 1519 | 110.5 | — | — | — | — | +45 | — | — | 39.4% | -0.67 | 2–3 (40%) | 1–1 | — | +1.16 |
| 21 | 1994 | 1871 | 146.2 | — | — | — | — | -20 | -58 | -130 | 60.7% | +1.00 | 9–3 (75%) | 4–3 (57%) | 106.5 | -0.99 | 1994 | 1552 | 124.3 | — | — | — | — | +25 | +4 | — | 42.5% | -0.32 | 1–3 (25%) | 2–5 (29%) | 96.0 | +0.18 |
| 22 | 1995 | 1848 | 150.6 | — | — | — | — | +59 | -74 | -92 | 58.6% | +0.48 | 10–7 (59%) | 6–3 (67%) | 103.1 | +1.09 | 1995 | 1605 | 122.3 | — | — | — | — | +19 | -41 | — | 41.9% | -0.77 | 3–2 (60%) | 1–2 (33%) | — | -0.49 |
| 23 | 1996 | 1812 | 145.0 | — | — | — | — | +5 | +4 | -6 | 53.2% | +0.02 | 5–6 (45%) | 3–2 (60%) | 97.8 | -0.27 | 1996 | 1718 | 136.1 | — | — | — | — | -38 | -67 | -62 | 53.9% | +0.01 | 7–6 (54%) | 4–4 (50%) | 99.7 | -0.45 |
| 24 | 1997 | 1850 | 153.6 | — | — | — | — | +44 | -92 | -62 | 54.0% | +0.35 | 10–6 (63%) | 5–5 (50%) | 103.9 | -1.59 | 1997 | 1638 | 126.1 | — | — | — | — | +17 | -15 | — | 42.6% | -0.43 | 1–9 (10%) | 0–5 (0%) | 87.2 | +0.52 |
| 25 | 1998 | 1721 | 125.2 | — | — | — | — | +37 | -25 | +64 | 40.5% | -0.62 | 8–6 (57%) | 1–1 | — | -0.88 | 1998 | 1577 | 105.6 | — | — | — | — | +59 | -30 | — | 31.7% | -1.44 | 2–3 (40%) | 0–4 (0%) | 95.4 | +0.30 |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1999 | 1538 | 103.5 | — | — | — | — | — | -41 | — | 42.9% | -0.90 | 0–3 (0%) | — | — | +0.64 |
| Career | — | 1971 | 148.7 | — | — | — | — | +11 | -58 | -103 | 56.1% | +0.40 | 67–48 (58%) | 31–18 (63%) | 109.3 | +0.47 | — | 1746 | 128.0 | — | — | — | — | +8 | -34 | -62 | 44.3% | -0.50 | 16–29 (36%) | 8–21 (28%) | 86.2 | +1.19 |
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 |
|---|---|---|---|---|---|
| Monica Seles | 0 | 10 | 10 | Sep 25, 1998 | H2H |
| Kimiko Date | 3 | 5 | 8 | Feb 2, 1996 | H2H |
| Silvia Farina Elia | 4 | 2 | 6 | May 13, 1998 | H2H |
| Mary Joe Fernandez | 3 | 3 | 6 | Oct 10, 1997 | H2H |
| Arantxa Sanchez-Vicario | 0 | 6 | 6 | Aug 7, 1997 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ai Sugiyama | 2 | 2 | 4 | Oct 23, 1997 | H2H |
| Dominique Monami | 4 | 0 | 4 | Jun 30, 1996 | H2H |
| Joannette Kruger | 3 | 0 | 3 | Oct 23, 1998 | H2H |
| Anna Kournikova | 0 | 3 | 3 | May 28, 1998 | H2H |
| Amanda Coetzer | 0 | 3 | 3 | Oct 25, 1997 | H2H |