H2H data updated: 2026-09-14 00:00 UTC
Julia Vakulenko holds a 1–0 lead over Tiantian Sun in their WTA head-to-head. Across 1 main-draw meeting, Julia Vakulenko leads 1–0 on grass. Most recently, Julia Vakulenko won the 2007 Birmingham round of 64 6-2 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 |
|---|---|---|---|---|---|---|---|---|
| Julia Vakulenko | 6-2 6-1 | Tiantian Sun | Match data | Jun 13, 2007* | R64 | Birmingham | Tier III → modern equivalent WTA 250 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Julia Vakulenko | #979 | #31 | 916 | 1,730 | 51 | 76 | 40.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Tiantian Sun | #819 | #77 | 395 | 1,649 | 27 | 54 | 33.3% | 0 | 0 | 0 | 0 | 1 | 1 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Julia Vakulenko | Tiantian Sun | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 2001 | 2–5 | 28.6% | #132 | 1,492 | 0 | 0 | 2002 | 0–1 | 0.0% | #231 | 1,493 | 0 | 0 |
| 2002 | 1–5 | 16.7% | #132 | 1,468 | 0 | 0 | 2003 | 2–7 | 22.2% | #129 | 1,451 | 0 | 0 |
| 2003 | 4–8 | 33.3% | #94 | 1,502 | 0 | 0 | 2004 | 2–9 | 18.2% | #126 | 1,429 | 0 | 0 |
| 2004 | 10–18 | 35.7% | #130 | 1,476 | 0 | 0 | 2005 | 7–6 | 53.8% | #105 | 1,520 | 0 | 0 |
| 2005 | 3–3 | 50.0% | #185 | 1,522 | 0 | 0 | 2006 | 12–12 | 50.0% | #81 | 1,628 | 0 | 1 |
| 2006 | 6–5 | 54.5% | #120 | 1,587 | 0 | 0 | 2007 | 3–15 | 16.7% | #230 | 1,505 | 0 | 1 |
| 2007 | 22–19 | 53.7% | #32 | 1,724 | 0 | 0 | 2008 | 1–4 | 20.0% | #281 | 1,493 | 0 | 1 |
| 2008 | 3–12 | 20.0% | #354 | 1,568 | 0 | 0 | — | — | — | — | — | — | — |
| 2009 | 0–1 | 0.0% | #156 | 1,554 | 0 | 0 | — | — | — | — | — | — | — |
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.
| Julia Vakulenko | Tiantian Sun | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 2001 | 1 | 1 | 2 | 50.0% | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | 2002 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 2002 | 0 | 1 | 1 | 0.0% | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | 2003 | 2 | 7 | 9 | 22.2% | — | — | — | — | — | — | — | — | — | — | — | — |
| 2003 | 1 | 5 | 6 | 16.7% | 3 | 2 | 5 | 60.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2004 | 0 | 6 | 6 | 0.0% | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 2004 | 6 | 8 | 14 | 42.9% | 4 | 7 | 11 | 36.4% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | 2005 | 7 | 6 | 13 | 53.8% | — | — | — | — | — | — | — | — | — | — | — | — |
| 2005 | — | — | — | — | 2 | 2 | 4 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | 2006 | 10 | 10 | 20 | 50.0% | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 2006 | — | — | — | — | 6 | 4 | 10 | 60.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2007 | 3 | 8 | 11 | 27.3% | 0 | 5 | 5 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 2007 | 13 | 12 | 25 | 52.0% | 7 | 5 | 12 | 58.3% | 2 | 2 | 4 | 50.0% | — | — | — | — | 2008 | 0 | 3 | 3 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 2008 | 2 | 5 | 7 | 28.6% | 1 | 6 | 7 | 14.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2009 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 23 | 32 | 55 | 41.8% | 25 | 35 | 60 | 41.7% | 3 | 8 | 11 | 27.3% | 0 | 1 | 1 | 0.0% | Career | 22 | 41 | 63 | 34.9% | 3 | 9 | 12 | 25.0% | 2 | 4 | 6 | 33.3% | — | — | — | — |
Rows are aligned in career order because complete birth data is unavailable. Detailed serve and return statistics available for 72/114 of Julia Vakulenko's and 28/56 of Tiantian Sun'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.
| Julia Vakulenko | Tiantian Sun | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% |
| 2003 | 6/12 | 2.5 | 4.2 | 54.3% | 69.0% | 45.8% | 57.4% | 47.1% | 58.3% | 39.6% | 2003 | 1/9 | 1.0 | 4.0 | 59.4% | 60.5% | 30.8% | 28.6% | 28.6% | 48.4% | 40.0% |
| 2004 | 5/28 | 3.6 | 4.6 | 61.4% | 68.3% | 34.5% | 44.4% | 54.5% | 54.6% | 42.8% | 2006 | 9/24 | 1.1 | 1.2 | 67.2% | 58.1% | 44.5% | 53.0% | 49.3% | 53.8% | 37.5% |
| 2005 | 4/6 | 3.8 | 3.8 | 65.7% | 71.7% | 40.8% | 64.6% | 45.8% | 61.0% | 40.4% | 2007 | 14/18 | 1.6 | 2.1 | 65.0% | 55.8% | 43.0% | 44.6% | 35.3% | 51.3% | 40.4% |
| 2006 | 9/11 | 1.6 | 2.8 | 63.2% | 59.1% | 49.8% | 43.3% | 54.3% | 55.0% | 49.7% | 2008 | 4/5 | 1.5 | 3.0 | 65.6% | 55.4% | 41.8% | 51.8% | 30.6% | 51.0% | 36.8% |
| 2007 | 35/41 | 3.7 | 4.0 | 60.3% | 65.0% | 43.7% | 49.6% | 45.9% | 56.1% | 45.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2008 | 12/15 | 2.3 | 4.8 | 52.6% | 61.4% | 37.3% | 49.5% | 37.6% | 49.5% | 38.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2009 | 1/1 | 1.0 | 3.0 | 63.6% | 52.4% | 41.7% | 33.3% | 20.0% | 48.5% | 36.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | 72/127 | 3.1 | 4.0 | 59.3% | 64.4% | 42.7% | 49.7% | 45.9% | 55.1% | 43.8% | Career | 28/81 | 1.4 | 2.0 | 65.6% | 56.6% | 42.8% | 47.8% | 38.8% | 52.0% | 38.9% |
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.
| Julia Vakulenko | Tiantian Sun | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 2001 | 1493 | 107.2 | — | — | — | — | — | +2 | — | 42.1% | -0.32 | 1–4 (20%) | 1–1 | — | -0.28 | 2002 | 1493 | 101.5 | — | — | — | — | — | — | — | 33.3% | -2.00 | 0–1 | — | — | -0.19 |
| 2002 | 1468 | 100.2 | — | — | — | — | — | +1 | — | 23.1% | -2.38 | 0–1 | 1–0 | — | +0.08 | 2003 | 1451 | 101.0 | -0.20 | -1.27 | 0.776 | 43.9% | +17 | — | — | 22.2% | -1.67 | 0–2 | 1–2 (33%) | — | +0.54 |
| 2003 | 1502 | 115.0 | +1.60 | -1.26 | 0.949 | 48.8% | -16 | +36 | — | 38.5% | -0.96 | 0–2 | 0–1 | — | -0.50 | 2004 | 1430 | 103.5 | — | — | — | — | -34 | +118 | — | 24.0% | -1.68 | 1–2 (33%) | 1–1 | — | -0.02 |
| 2004 | 1477 | 114.2 | -0.14 | -0.77 | 0.943 | 48.8% | +33 | +33 | — | 41.0% | -0.59 | 2–5 (29%) | 5–3 (63%) | 100.8 | +0.59 | 2005 | 1520 | 124.6 | — | — | — | — | -19 | — | — | 57.7% | +0.69 | 1–1 | 3–1 (75%) | — | +0.62 |
| 2005 | 1523 | 111.0 | +0.98 | -0.91 | 1.036 | 50.9% | — | +12 | — | 53.8% | +0.31 | 0–1 | 1–1 | — | -0.16 | 2006 | 1629 | 131.4 | -1.14 | -2.98 | 0.811 | 45.8% | -16 | — | — | 52.7% | -0.04 | 2–5 (29%) | — | — | -0.16 |
| 2006 | 1587 | 121.3 | +0.51 | +2.47 | 1.104 | 52.5% | — | +44 | — | 70.0% | +1.10 | 0–2 | 2–0 | — | +0.61 | 2007 | 1505 | 100.0 | -2.48 | -2.77 | 0.830 | 45.9% | +49 | -23 | — | 20.5% | -2.13 | 1–2 (33%) | 4–1 (80%) | 101.7 | -1.14 |
| 2007 | 1724 | 140.9 | +0.53 | +1.87 | 1.040 | 50.5% | -68 | +9 | -168 | 54.3% | +0.49 | 10–6 (63%) | 3–5 (38%) | 106.8 | +0.51 | 2008 | 1494 | 101.6 | -1.21 | -2.08 | 0.750 | 43.9% | +30 | — | — | 30.8% | -1.62 | 1–2 (33%) | 2–3 (40%) | 98.7 | +0.02 |
| 2008 | 1569 | 101.1 | -3.68 | -3.86 | 0.755 | 43.8% | +18 | +42 | — | 30.3% | -1.33 | 3–4 (43%) | — | — | -0.51 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2009 | 1555 | — | +1.66 | -1.69 | 0.713 | 41.5% | — | — | — | — | — | — | — | — | -0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1731 | 126.1 | -0.09 | +0.34 | 0.975 | 49.2% | -22 | +25 | -168 | 45.8% | -0.26 | 16–25 (39%) | 13–11 (54%) | 102.1 | +0.23 | Career | 1650 | 117.9 | -1.79 | -2.69 | 0.810 | 45.5% | 0 | +30 | — | 37.4% | -0.93 | 6–15 (29%) | 11–8 (58%) | 98.4 | -0.41 |
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 |
|---|---|---|---|---|---|
| Katarina Srebotnik | 1 | 4 | 5 | Apr 11, 2007 | H2H |
| Flavia Pennetta | 2 | 1 | 3 | Jun 25, 2008 | H2H |
| Maria Kirilenko | 2 | 1 | 3 | Oct 25, 2007 | H2H |
| Francesca Schiavone | 2 | 1 | 3 | Mar 21, 2007 | H2H |
| Patty Schnyder | 0 | 3 | 3 | Jun 3, 2006 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Virginie Razzano | 0 | 3 | 3 | Feb 20, 2008 | H2H |
| Gisela Dulko | 0 | 3 | 3 | Aug 8, 2007 | H2H |
| Victoria Azarenka | 1 | 1 | 2 | Apr 17, 2008 | H2H |
| Anastasia Rodionova | 1 | 1 | 2 | Mar 6, 2008 | H2H |
| Martina Hingis | 0 | 2 | 2 | Sep 20, 2007 | H2H |