Haruka Kaji
WTA · World No. 287 · JPN
At a glance
Elo
1574
Hard Elo
1573
Clay Elo
1507
Grass Elo
1500
Last 52w win%
53%
Last 10
6-4
Tiebreak win%
48%
Deciding-set win%
64%
Serve & return profile
Return-first: wins by breaking rather than overpowering on serve. Strong on break points at both ends.
Serve / return map
vs 565 tour pros
Strengths vs tour
Career percentile · tick = tour median
Serve points won55%51th
Return points won46%71th
Ace rate1.5%25th
Double-fault discipline2.8%93th
Break points saved56%74th
Break points won50%83th
Serve anatomy
1st serve in67%
1st serve won60%
2nd serve won47%
Surface splits
Serve & return points won, break-point save & conversion, and ace rate, broken out by surface. Win% is heat-shaded against a 50% baseline. Toggle the window: career, last 52 weeks, or this season.
| Surface | M | W-L | Win% | Serve% | Return% | Ace% | BP Sv% | BP Cv% |
|---|---|---|---|---|---|---|---|---|
| All | 159 | 93-66 | 58% | 55% | 46% | 1.5% | 56% | 50% |
| Hard | 123 | 68-55 | 55% | 55% | 46% | 1.5% | 57% | 49% |
| Clay | 13 | 7-6 | 54% | 52% | 46% | 0.4% | 49% | 56% |
| Grass | 2 | 1-1 | 50% | 57% | 43% | 0.0% | 55% | 53% |
Recent matches
| Date | Tournament | Surf | Odds | R | Opponent | Score |
|---|---|---|---|---|---|---|
| Jun 21, 2026 | W35 Taipei · ITF Event | Hard | 2.61 | L | Dayeon Back | 6-1 7-5 |
| Jun 20, 2026 | W35 Taipei · ITF Event | Hard | 1.19 | W | — | 6-4 6-0 |
| Jun 18, 2026 | W35 Taipei · ITF Event | Hard | — | W | — | 6-2 6-2 |
| Jun 17, 2026 | W35 Taipei · ITF Event | Hard | — | W | — | 6-3 7-6(4) |
| Jun 10, 2026 | W100 Wuning · ITF Event | Hard | — | L | — | 3-6 6-3 7-6(3) |
| May 23, 2026 | W100 Takasaki · ITF Event | Hard | — | L | Valentina Ryser | 6-3 6-3 |
| May 22, 2026 | W100 Takasaki · ITF Event | Hard | — | W | Rina Saigo | 6-0 6-4 |
| May 22, 2026 | W100 Takasaki · ITF Event | Hard | 2.76 | W | Fangran Tian | 6-0 6-4 |
| May 20, 2026 | W100 Takasaki · ITF Event | Hard | 1.67 | W | — | 6-2 7-6(1) |
| May 14, 2026 | W75 Kurume · ITF Event | Carpet | 2.06 | L | Mei Yamaguchi | 6-4 6-1 |
| May 13, 2026 | W75 Kurume · ITF Event | Carpet | 1.89 | W | — | 6-1 6-2 |
| May 6, 2026 | Jiangxi Open - Jiujiang · WTA 125 | Hard | 2.33 | L | Xinxin Yao | 6-4 6-3 |
| May 5, 2026 | Jiangxi Open - Jiujiang · WTA 125 | Hard | 3.56 | W | Xinyu Gao | 7-6(2) 4-1 ret. |
| Apr 27, 2026 | W100 Gifu · ITF Event | Hard | — | L | — | 7-5 6-4 |
| Apr 23, 2026 | W100 Tokyo · ITF Event | Hard | 3.34 | L | Taylah Preston | 6-3 6-1 |
| Apr 22, 2026 | W100 Tokyo · ITF Event | Hard | 2.68 | W | Yeon Woo Ku | 6-4 7-6(2) |
| Apr 21, 2026 | W100 Tokyo · ITF Event | Hard | 2.06 | W | — | 5-7 7-6(3) 7-5 |
| Apr 20, 2026 | W100 Tokyo · ITF Event | Hard | 1.84 | W | — | 6-1 6-4 |
| Apr 15, 2026 | W35 Miyazaki · ITF Event | Hard | — | L | — | 6-2 6-3 |
| Nov 25, 2025 | W50 Yokohama 1 · ITF Event | Hard | — | L | Darya Astakhova | 6-1 6-1 |
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