Els Callens
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Elena Likhovtseva | 2 | 4 | 6 | Jun 12, 2002 | H2H |
| Magdalena Maleeva | 1 | 3 | 4 | Oct 1, 2004 | H2H |
| Ai Sugiyama | 2 | 2 | 4 | Feb 7, 2004 | H2H |
| Shinobu Asagoe | 1 | 3 | 4 | Jan 15, 2004 | H2H |
| Amy Frazier | 2 | 2 | 4 | Jan 9, 2003 | H2H |
H2H data updated: 2026-09-14 00:00 UTC
Naoko Kijimuta holds a 1–0 lead over Els Callens in their WTA head-to-head. Across 1 main-draw meeting, Naoko Kijimuta leads 1–0 on hard courts. Most recently, Naoko Kijimuta won the 1995 US Open round of 128 6-1 6-2.
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 |
|---|---|---|---|---|---|---|---|---|
| Naoko Kijimuta | 6-1 6-2 | Els Callens | Match data | Aug 30, 1995* | R128 | US Open | Grand Slam | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Els Callens | #473 | #43 | 582 | 1,715 | 83 | 128 | 39.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Naoko Kijimuta | #538 | #44 | 529 | 1,696 | 37 | 57 | 39.4% | 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 | Els Callens | Naoko Kijimuta | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | — | — | — | — | — | — | — | 1989 | 1–1 | 50.0% | — | 1,513 | 0 | 0 |
| 20 | 1991 | 1–1 | 50.0% | #168 | 1,509 | 0 | 0 | 1992 | 0–1 | 0.0% | #315 | 1,496 | 0 | 0 |
| 21 | 1992 | 0–1 | 0.0% | #231 | 1,492 | 0 | 0 | 1993 | 0–1 | 0.0% | #303 | 1,490 | 0 | 0 |
| 22 | 1993 | 2–1 | 66.7% | #188 | 1,513 | 0 | 0 | 1994 | 2–7 | 22.2% | #156 | 1,480 | 0 | 0 |
| 23 | 1994 | 4–3 | 57.1% | #110 | 1,560 | 0 | 0 | 1995 | 6–6 | 50.0% | #87 | 1,556 | 0 | 0 |
| 24 | 1995 | 8–11 | 42.1% | #95 | 1,551 | 0 | 0 | 1996 | 17–18 | 48.6% | #45 | 1,682 | 0 | 0 |
| 25 | 1996 | 13–12 | 52.0% | #51 | 1,692 | 0 | 0 | 1997 | 10–17 | 37.0% | #74 | 1,669 | 0 | 0 |
| 26 | 1997 | 8–16 | 33.3% | #98 | 1,579 | 0 | 0 | 1998 | 1–6 | 14.3% | #279 | 1,595 | 0 | 0 |
| 27 | 1998 | 2–8 | 20.0% | #102 | 1,525 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 1999 | 7–9 | 43.8% | #82 | 1,569 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 2000 | 8–13 | 38.1% | #100 | 1,564 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 2001 | 2–6 | 25.0% | #177 | 1,522 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 2002 | 9–10 | 47.4% | #67 | 1,606 | 0 | 0 | — | — | — | — | — | — | — |
| 32 | 2003 | 13–19 | 40.6% | #73 | 1,637 | 0 | 0 | — | — | — | — | — | — | — |
| 33 | 2004 | 5–15 | 25.0% | #122 | 1,539 | 0 | 0 | — | — | — | — | — | — | — |
| 34 | 2005 | 1–3 | 25.0% | #224 | 1,521 | 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 | Els Callens | Naoko Kijimuta | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1989 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 20 | 1991 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | 1992 | — | — | — | — | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 21 | 1992 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1993 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1993 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 3 | 66.7% | 1994 | 2 | 7 | 9 | 22.2% | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1994 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | 3 | 2 | 5 | 60.0% | 1995 | 6 | 5 | 11 | 54.5% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 24 | 1995 | 1 | 4 | 5 | 20.0% | 3 | 2 | 5 | 60.0% | 4 | 1 | 5 | 80.0% | 0 | 4 | 4 | 0.0% | 1996 | 14 | 11 | 25 | 56.0% | 3 | 3 | 6 | 50.0% | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% |
| 25 | 1996 | 2 | 3 | 5 | 40.0% | 1 | 2 | 3 | 33.3% | 3 | 3 | 6 | 50.0% | 7 | 4 | 11 | 63.6% | 1997 | 4 | 12 | 16 | 25.0% | 3 | 2 | 5 | 60.0% | 3 | 2 | 5 | 60.0% | 0 | 1 | 1 | 0.0% |
| 26 | 1997 | 4 | 6 | 10 | 40.0% | 1 | 3 | 4 | 25.0% | 2 | 3 | 5 | 40.0% | 1 | 4 | 5 | 20.0% | 1998 | 0 | 4 | 4 | 0.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 27 | 1998 | 0 | 3 | 3 | 0.0% | 1 | 1 | 2 | 50.0% | 0 | 2 | 2 | 0.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 1999 | 1 | 4 | 5 | 20.0% | 4 | 2 | 6 | 66.7% | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2000 | 5 | 6 | 11 | 45.5% | 2 | 5 | 7 | 28.6% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2001 | 1 | 2 | 3 | 33.3% | 1 | 2 | 3 | 33.3% | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2002 | 4 | 3 | 7 | 57.1% | 1 | 3 | 4 | 25.0% | 2 | 2 | 4 | 50.0% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 2003 | 4 | 7 | 11 | 36.4% | 1 | 6 | 7 | 14.3% | 4 | 3 | 7 | 57.1% | 4 | 3 | 7 | 57.1% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 2004 | 3 | 9 | 12 | 25.0% | 0 | 3 | 3 | 0.0% | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 34 | 2005 | 1 | 2 | 3 | 33.3% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 26 | 49 | 75 | 34.7% | 15 | 29 | 44 | 34.1% | 19 | 23 | 42 | 45.2% | 23 | 27 | 50 | 46.0% | — | 26 | 40 | 66 | 39.4% | 6 | 6 | 12 | 50.0% | 4 | 6 | 10 | 40.0% | 1 | 5 | 6 | 16.7% |
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 | Els Callens | Naoko Kijimuta | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1989 | 1514 | 104.0 | — | — | — | — | — | — | — | 50.0% | -0.25 | — | — | — | +0.25 |
| 20 | 1991 | 1509 | 97.7 | — | — | — | — | — | — | — | 40.0% | -1.00 | 1–0 | 1–1 | — | +0.24 | 1992 | 1497 | 99.7 | — | — | — | — | — | — | — | 33.3% | -0.33 | 0–1 | — | — | +0.21 |
| 21 | 1992 | 1493 | 94.9 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.06 | 1993 | 1490 | 103.7 | — | — | — | — | — | — | — | 33.3% | -1.67 | 0–1 | — | — | 0.00 |
| 22 | 1993 | 1514 | 102.8 | — | — | — | — | +47 | — | — | 57.1% | +0.14 | 1–0 | — | — | +0.46 | 1994 | 1480 | 119.3 | — | — | — | — | +27 | — | — | 25.0% | -1.40 | 1–1 | 1–2 (33%) | — | -0.38 |
| 23 | 1994 | 1561 | 113.2 | — | — | — | — | +25 | — | — | 56.3% | +0.63 | 1–1 | 1–0 | — | -0.16 | 1995 | 1556 | 125.1 | — | — | — | — | +18 | — | — | 48.3% | +0.31 | 3–2 (60%) | 0–2 | — | +0.31 |
| 24 | 1995 | 1551 | 116.0 | — | — | — | — | -68 | +43 | +105 | 45.2% | -0.24 | 1–3 (25%) | 1–1 | — | +0.58 | 1996 | 1682 | 139.7 | — | — | — | — | +22 | -92 | -129 | 50.0% | +0.20 | 5–7 (42%) | 3–4 (43%) | 100.8 | -0.53 |
| 25 | 1996 | 1692 | 128.2 | — | — | — | — | -52 | -110 | +3 | 48.1% | -0.30 | 4–2 (67%) | 4–4 (50%) | 103.8 | +0.50 | 1997 | 1670 | 130.1 | — | — | — | — | -56 | -37 | -27 | 40.9% | -0.74 | 5–7 (42%) | 1–3 (25%) | 99.4 | -1.71 |
| 26 | 1997 | 1579 | 109.4 | — | — | — | — | +17 | -21 | +72 | 33.3% | -1.26 | 4–4 (50%) | 1–2 (33%) | 99.4 | +0.32 | 1998 | 1595 | 103.6 | — | — | — | — | -39 | — | — | 27.8% | -2.11 | 1–3 (25%) | — | — | +0.31 |
| 27 | 1998 | 1525 | 102.8 | — | — | — | — | +21 | — | — | 34.8% | -1.00 | 1–4 (20%) | 1–1 | — | +0.31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 1999 | 1570 | 122.3 | — | — | — | — | -17 | +45 | — | 44.4% | -0.08 | 2–2 (50%) | 1–2 (33%) | — | +0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2000 | 1565 | 124.4 | — | — | — | — | +8 | +10 | -5 | 44.9% | -0.06 | 1–6 (14%) | 2–4 (33%) | 93.3 | -0.24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2001 | 1523 | 118.1 | — | — | — | — | +25 | +26 | — | 33.3% | -0.72 | 0–2 | 0–2 | — | -0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2002 | 1606 | 123.2 | — | — | — | — | +7 | -75 | -6 | 42.6% | -0.40 | 7–2 (78%) | 2–3 (40%) | 105.1 | -0.33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 2003 | 1637 | 127.2 | -0.92 | -1.45 | 0.759 | 44.5% | +8 | -178 | +36 | 41.1% | -0.48 | 5–4 (56%) | 4–3 (57%) | 102.9 | -1.93 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 2004 | 1539 | 102.6 | -1.13 | -2.60 | 0.779 | 44.6% | +15 | -107 | +61 | 33.3% | -1.44 | 2–6 (25%) | 3–1 (75%) | 97.1 | -0.15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 34 | 2005 | 1522 | 96.0 | -1.14 | -3.36 | 0.793 | 46.2% | +16 | — | — | 25.0% | -1.88 | — | 1–1 | — | +0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1716 | 123.9 | -1.05 | -2.22 | 0.772 | 44.7% | -2 | -39 | +39 | 41.1% | -0.57 | 30–36 (45%) | 22–25 (47%) | 98.5 | -0.12 | — | 1697 | 134.7 | — | — | — | — | -1 | -67 | -65 | 42.7% | -0.43 | 15–22 (41%) | 5–11 (31%) | 96.6 | -1.64 |
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 |
|---|---|---|---|---|---|
| Elena Likhovtseva | 2 | 4 | 6 | Jun 12, 2002 | H2H |
| Magdalena Maleeva | 1 | 3 | 4 | Oct 1, 2004 | H2H |
| Ai Sugiyama | 2 | 2 | 4 | Feb 7, 2004 | H2H |
| Shinobu Asagoe | 1 | 3 | 4 | Jan 15, 2004 | H2H |
| Amy Frazier | 2 | 2 | 4 | Jan 9, 2003 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ai Sugiyama | 2 | 2 | 4 | May 23, 1997 | H2H |
| Shi-Ting Wang | 1 | 2 | 3 | Sep 18, 1997 | H2H |
| Yayuk Basuki | 0 | 3 | 3 | Aug 14, 1997 | H2H |
| Amy Frazier | 0 | 3 | 3 | Jul 24, 1997 | H2H |
| Arantxa Sanchez-Vicario | 0 | 3 | 3 | Mar 22, 1997 | H2H |