Zi Yan
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Nathalie Dechy | 1 | 3 | 4 | Jan 3, 2008 | H2H |
| Anna Chakvetadze | 1 | 2 | 3 | May 17, 2007 | H2H |
| Vera Dushevina | 1 | 1 | 2 | Feb 17, 2009 | H2H |
| Emilie Loit | 1 | 1 | 2 | May 27, 2008 | H2H |
| Agnes Szavay | 0 | 2 | 2 | May 14, 2008 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Zi Yan vs Jamea Jackson H2H: 0-1
Jamea Jackson holds a 1–0 lead over Zi Yan in their WTA head-to-head. Across 1 main-draw meeting, Jamea Jackson leads 1–0 on clay. Most recently, Jamea Jackson won the 2006 Roland Garros first round 6-2 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
0
–
1
1 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Jamea Jackson | 6-2 6-3 | Zi Yan | Match data | May 30, 2006* | R128 | Roland Garros | Grand Slam | Clay |
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.
Career Comparison
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zi Yan | #789 | #40 | 678 | 1,620 | 34 | 58 | 37.0% | 0 | 0 | 0 | 0 | 1 | 1 |
| Jamea Jackson | #382 | #43 | 479 | 1,662 | 33 | 50 | 39.8% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
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 | Zi Yan | Jamea Jackson | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 2003 | 0–1 | 0.0% | #444 | 1,491 | 0 | 0 |
| 17 | 2002 | 0–1 | 0.0% | #297 | 1,486 | 0 | 0 | 2004 | 2–5 | 28.6% | #156 | 1,482 | 0 | 0 |
| 18 | 2003 | 2–3 | 40.0% | #161 | 1,486 | 0 | 0 | 2005 | 10–14 | 41.7% | #80 | 1,520 | 0 | 0 |
| 19 | 2004 | 0–4 | 0.0% | #296 | 1,451 | 0 | 0 | 2006 | 19–19 | 50.0% | #45 | 1,608 | 0 | 0 |
| 20 | 2005 | 8–4 | 66.7% | #104 | 1,573 | 0 | 1 | 2007 | 0–6 | 0.0% | #588 | 1,539 | 0 | 0 |
| 21 | 2006 | 6–16 | 27.3% | #166 | 1,484 | 0 | 1 | 2008 | 2–5 | 28.6% | #273 | 1,529 | 0 | 0 |
| 22 | 2007 | 10–12 | 45.5% | #58 | 1,543 | 0 | 1 | — | — | — | — | — | — | — |
| 23 | 2008 | 7–14 | 33.3% | #126 | 1,527 | 0 | 1 | — | — | — | — | — | — | — |
| 24 | 2009 | 0–3 | 0.0% | #306 | 1,486 | 0 | 1 | — | — | — | — | — | — | — |
| 25 | 2010 | 1–1 | 50.0% | #422 | 1,495 | 0 | 1 | — | — | — | — | — | — | — |
Surface Results by Age
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 | Zi Yan | Jamea Jackson | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2003 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 17 | 2002 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 2004 | 1 | 4 | 5 | 20.0% | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 18 | 2003 | 2 | 2 | 4 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2005 | 6 | 11 | 17 | 35.3% | 1 | 1 | 2 | 50.0% | 3 | 2 | 5 | 60.0% |
| 19 | 2004 | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2006 | 11 | 13 | 24 | 45.8% | 2 | 4 | 6 | 33.3% | 6 | 2 | 8 | 75.0% |
| 20 | 2005 | 6 | 2 | 8 | 75.0% | 2 | 2 | 4 | 50.0% | — | — | — | — | 2007 | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% |
| 21 | 2006 | 2 | 10 | 12 | 16.7% | 3 | 4 | 7 | 42.9% | 1 | 2 | 3 | 33.3% | 2008 | 2 | 5 | 7 | 28.6% | — | — | — | — | — | — | — | — |
| 22 | 2007 | 8 | 7 | 15 | 53.3% | 2 | 3 | 5 | 40.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2008 | 5 | 9 | 14 | 35.7% | 2 | 4 | 6 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2009 | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2010 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 24 | 37 | 61 | 39.3% | 9 | 16 | 25 | 36.0% | 1 | 5 | 6 | 16.7% | — | 20 | 37 | 57 | 35.1% | 3 | 6 | 9 | 33.3% | 10 | 7 | 17 | 58.8% |
Performance Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 52/70 of Zi Yan's and 40/82 of Jamea Jackson'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.
| Age | Zi Yan | Jamea Jackson | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 17 | — | —/— | — | — | — | — | — | — | — | — | — | 2004 | 1/7 | 0.0 | 4.0 | 64.0% | 53.8% | 44.4% | 50.0% | 36.8% | 50.4% | 44.2% |
| 18 | — | —/— | — | — | — | — | — | — | — | — | — | 2005 | 9/24 | 1.1 | 2.4 | 66.3% | 62.4% | 42.0% | 56.2% | 56.0% | 55.5% | 45.3% |
| 19 | — | —/— | — | — | — | — | — | — | — | — | — | 2006 | 20/38 | 0.7 | 3.1 | 66.5% | 58.3% | 48.9% | 47.6% | 44.4% | 55.1% | 45.1% |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 2007 | 5/6 | 0.4 | 4.0 | 62.9% | 45.0% | 40.0% | 37.7% | 28.9% | 43.7% | 32.8% |
| 21 | 2006 | 10/22 | 1.8 | 3.3 | 64.1% | 56.8% | 43.0% | 56.3% | 48.9% | 52.2% | 41.1% | 2008 | 5/7 | 1.2 | 4.4 | 62.5% | 52.0% | 37.3% | 43.7% | 55.6% | 46.8% | 40.2% |
| 22 | 2007 | 18/22 | 1.3 | 2.6 | 65.3% | 60.0% | 45.6% | 47.1% | 55.2% | 54.9% | 44.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2008 | 20/21 | 0.9 | 3.6 | 63.5% | 56.5% | 41.5% | 49.7% | 43.3% | 51.0% | 44.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 24 | 2009 | 2/3 | 1.0 | 4.5 | 62.7% | 53.0% | 39.2% | 33.3% | 47.3% | 47.8% | 44.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 25 | 2010 | 2/2 | 0.0 | 2.5 | 62.7% | 53.2% | 38.5% | 39.3% | 33.6% | 47.7% | 39.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 52/92 | 1.2 | 3.2 | 64.2% | 57.5% | 43.0% | 49.1% | 48.3% | 52.3% | 43.7% | — | 40/83 | 0.8 | 3.2 | 65.5% | 56.7% | 44.7% | 47.9% | 46.3% | 52.6% | 43.0% |
Advanced Statistics Comparison by Age
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 | Zi Yan | Jamea Jackson | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2003 | 1492 | 100.0 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.13 |
| 17 | 2002 | 1486 | 99.3 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | — | — | +0.03 | 2004 | 1483 | 106.1 | -0.74 | -0.28 | 0.892 | 47.5% | -1 | — | — | 46.7% | -0.07 | 0–3 (0%) | 0–3 (0%) | — | -0.03 |
| 18 | 2003 | 1486 | 101.9 | — | — | — | — | +30 | — | — | 45.5% | -0.09 | 0–1 | 1–1 | — | +0.26 | 2005 | 1521 | 117.6 | -0.08 | -0.13 | 1.020 | 50.4% | -39 | — | +118 | 43.6% | -0.38 | 3–4 (43%) | 4–1 (80%) | 103.8 | -0.78 |
| 19 | 2004 | 1451 | 99.1 | — | — | — | — | +21 | — | — | 27.3% | -1.82 | 0–3 (0%) | 1–0 | — | -0.09 | 2006 | 1609 | 128.7 | -0.56 | +0.41 | 1.005 | 50.0% | -63 | -80 | +192 | 53.5% | +0.27 | 6–8 (43%) | 3–8 (27%) | 98.3 | +0.35 |
| 20 | 2005 | 1573 | 115.2 | — | — | — | — | +3 | -61 | — | 60.0% | +0.80 | 2–1 (67%) | 2–2 (50%) | 101.7 | +0.28 | 2007 | 1540 | 95.2 | -4.69 | -3.50 | 0.583 | 38.5% | -33 | — | — | 7.7% | -3.54 | 0–1 | — | — | -0.44 |
| 21 | 2006 | 1485 | 107.1 | -2.70 | -1.75 | 0.860 | 47.0% | -6 | +46 | +98 | 32.0% | -1.34 | 2–4 (33%) | 2–2 (50%) | 98.8 | -0.22 | 2008 | 1530 | 101.3 | -3.99 | -0.29 | 0.755 | 43.5% | -25 | — | — | 28.6% | -2.21 | 0–2 | 1–0 | — | -0.20 |
| 22 | 2007 | 1543 | 115.3 | -0.92 | 0.00 | 0.986 | 49.7% | +13 | -15 | — | 37.8% | -0.64 | 4–3 (57%) | 2–0 | — | +1.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2008 | 1528 | 117.9 | -2.92 | -0.04 | 0.910 | 47.8% | +36 | -10 | — | 31.9% | -1.15 | 4–3 (57%) | 1–0 | — | -0.15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2009 | 1486 | 98.3 | -0.13 | -1.41 | 0.855 | 46.2% | — | — | — | 14.3% | -2.00 | 0–1 | — | — | +0.21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2010 | 1495 | 98.7 | -4.24 | -2.37 | 0.747 | 44.1% | — | — | — | 40.0% | -1.80 | 1–0 | 1–0 | — | +0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1621 | 114.0 | -2.13 | -0.50 | 0.916 | 48.1% | +15 | -3 | +98 | 36.5% | -0.88 | 13–16 (45%) | 10–5 (67%) | 102.5 | +1.60 | — | 1662 | 120.0 | -1.40 | -0.31 | 0.907 | 47.8% | -44 | -80 | +164 | 44.3% | -0.45 | 9–18 (33%) | 8–12 (40%) | 96.4 | -1.48 |
Career Rivalries
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
Jamea Jackson
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Gisela Dulko | 2 | 1 | 3 | Oct 5, 2006 | H2H |
| Maria Sharapova | 1 | 2 | 3 | Jun 17, 2006 | H2H |
| Kristina Brandi | 1 | 2 | 3 | Jun 8, 2005 | H2H |
| Victoria Azarenka | 0 | 2 | 2 | Jul 30, 2008 | H2H |
| Ashley Harkleroad | 1 | 1 | 2 | Aug 8, 2007 | H2H |