Heather Watson vs Haruka Kaji Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
H. Watson vs H. Kaji
Heather Watson
GBR
w
w
l
l
w
l
l
l
l
l
1
Win
1
Played
0
Win
33
Age
31
1.70m
Height
-
267
C. Rank
277
38
Best Rank
213
4
Total Titles
0
0
YTD Titles
0
$2.7M
Career Money
$50.3K
Right-handed (two-handed backhand)
Plays
-
Haruka Kaji
JPN
l
w
l
w
l
w
l
w
l
l
1
Win
1
Played
0
Win
33
Age
31
1.70m
Height
-
267
C. Rank
277
38
Best Rank
213
4
Total Titles
0
0
YTD Titles
0
$2.7M
Career Money
$50.3K
Right-handed (two-handed backhand)
Plays
-
Head-to-head: Watson 1 - 0 Kaji
They have played 3 sets in total, with Heather Watson winning 2 and Haruka Kaji winning 1. The last match between Heather Watson and Haruka Kaji was at the W60 Kurume, 15-05-2019, Round: R1, Surface: Carpet, with Heather Watson getting the victory 5-7 6-2 6-0.
| Players | Head To Head Match Wins |
|---|---|
| Watson | 1 |
| Kaji | 0 |
Last 1 H2H Matches:
(R1) W60 Kurume(05-15-19)
Heather Watson
5
6
6
Haruka Kaji
7
2
0
H. Watson vs H. Kaji H2H Profile
H. Watson vs H. Kaji Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Heather Watson has won 44.64% of points on their second serve, while Haruka Kaji has won 37.81%. There is a high correlation between this stat and match prediction accuracy.
- Return game stats recent form: Return stats show Heather Watson, in recent form, has won 49.46% of their opponent's second serve points, while Haruka Kaji has won 52.66%. The same stats for first serve returns are 26.55% and 35.64% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Heather Watson has saved 44.00% of breakpoints in recent form, whereas Haruka Kaji has saved 44.20% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Heather Watson has won 43.75% of matches played (W/L 14/18), with Haruka Kaji winning 50.75% (W/L 34/33) that gives us an overall head-to head prediction overview.
- Best surface: Heather Watson has their best career surface win % on I.hard, winning 63% (W/L 77/46), and worse career win % on Clay, winning 49% (W/L 58/60). Haruka Kaji has their best career surface win % on I.hard, winning 63% (W/L 19/15), and worse career win % on Clay, winning 47% (W/L 15/17).
- Player level: In the last year, Heather Watson has played most of their matches on the Challengers/ITF tournaments > $10K, winning 64.29% of matches (W/L 9/5), where as Haruka Kaji has played most of their matches on the Challengers/ITF tournaments > $10K, winning 53.23% of matches (W/L 33/29). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
- Direct H2H matches: They have played 1 times before with Heather Watson winning 1 times and Haruka Kaji being victorious 0 times. They have played 3 sets in total, with Heather Watson winning 2 and Haruka Kaji winning 1.
- The last match between Heather Watson and Haruka Kaji was at the W60 Kurume, 15-05-2019, Round: R1, Surface: Carpet, with Heather Watson getting the victory 5-7 6-2 6-0.
- Head to head match duration: In past head to head matches, the average match time between these players has been 2:8:0.
- Opponent quality stats: Over the last 12 months, Heather Watson has played against opponents with an average rank of 161.25 while Haruka Kaji has played against players with an average rank of 363.72.
- Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Heather Watson has won 60% of deciding sets over the last 12 months, while Haruka Kaji has won 45% in all matches played on tour.
- Break point conversion: In recent form, Heather Watson has converted 31.17% of breakpoint opportunities, and Haruka Kaji has converted 43.01% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.
Heather Watson vs Haruka Kaji Editorial Preview By TennisTipster88.
H. Watson vs H. Kaji H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 1 | H2H Matches Won | 0 |
| 2 | Sets Won | 1 |
| 17 | Games Won | 9 |
| 1 | Aces (Total) | 2 |
| 7 | Total Double Faults | 4 |
| 2:8:0 | Average Match Time | 2:8:0 |
| 53% (47/89) | 1st Serve % | 64% (50/78) |
| 57% (27/47) | 1st Serve Win % | 50% (25/50) |
| 48% (20/42) | 2nd Serve Win % | 29% (8/28) |
| 64% (9/14) | Break Pts Won % | 42% (5/12) |
| 58% (45/78) | Return Points Win % | 47% (42/89) |
| 100% (1/1) | Best‑of‑3 Win % | 0% (0/1) |
| 100% (1/1) | Deciding Set Win % | 0% (0/1) |
| 0% (0/0) | 1st Set Won, Won Match | 0% (0/1) |
| 0% (0/0) | 1st Set Won, Lost Match | 100% (1/1) |
| 100% (1/1) | 1st Set Lost, Won Match | 0% (0/0) |
Recent Performance Stats
2nd Serve Win %: Watson 44%, Kaji 46%.
Opp 2nd Serve Pts Won: Watson 54%, Kaji 57%.
Break Points Saved %: Watson 55%, Kaji 54%.
H. Watson Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 U.S. Open - New York - 25-08-2025 | ||||
Q1  Ekaterine GorgodzeE. Gorgodze | L | 3-6 6-3 6-4 | ||
| Cincinnati Open - Cincinnati - 04-08-2025 | ||||
Q1  Anastasia ZakharovaA. Zakharova | L | 6-2 6-3 | ||
| Eupago Porto Open - Porto - 14-07-2025 | ||||
R1  Angelina VoloshchukA. Voloshchuk | L | 6-4 ret. | ||
 Wimbledon - London - 30-06-2025 | ||||
R1  Clara TausonC. Tauson | L | 2-6 6-4 6-3 | ||
| Rothesay International - Eastbourne - 23-06-2025 | ||||
Q3 Kamilla RakhimovaK. Rakhimova | L | 6-4 6-1 | ||
H. Kaji Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| W100 Takasaki - 17-11-2025 | ||||
R1  Shuai ZhangS. Zhang | L | 6-4 6-3 | ||
| W50 Funchal - 10-11-2025 | ||||
R2  Margaux RouvroyM. Rouvroy | L | 6-3 7-6(2) | ||
R1  Madelief HagemanM. Hageman | W | 6-2 6-1 | ||
| W35 Faro - 03-11-2025 | ||||
R2  Melisa ErcanM. Ercan | L | 6-2 6-4 | ||
R1  Lea NilssonL. Nilsson | W | 7-6(1) 6-1 | ||
H. Watson vs H. Kaji Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 54.43% (436/365) | YTD Win/Loss | 55.73% (321/255) |
| 53.35% (996/871) | Sets Win/Loss | 53.22% (695/611) |
| 51.98% (9088/8395) | Games Win/Loss | 50.91% (6013/5798) |
| 53.77% (228/196) | Hard Win/Loss | 55.92% (236/186) |
| 49.15% (58/60) | Clay Win/Loss | 46.88% (15/17) |
| 64.12% (84/47) | Indoor Hard W/L | 58.33% (56/40) |
| 51.56% (66/62) | Grass Win/Loss | 53.85% (14/12) |
| 0.28 | Aces Per Game | 0.08 |
| 2428 | Aces Total | 445 |
| 0.27 | Double Faults Per Game | 0.2 |
| 2324 | Total Double Faults | 1171 |
| 1:26:19 | Average Match Time | 1:22:6 |
| 443.93 | Average Opponent Rank | 529.22 |
| 60% (30138/50443) | 1st Serve % | 65% (19698/30409) |
| 65% (19664/30138) | 1st Serve Win % | 59% (11530/19698) |
| 45% (9127/20294) | 2nd Serve Win % | 46% (4912/10712) |
| 45% (2686/5914) | Break Points Won % (Total) | 49% (1903/3875) |
| 44% (22126/50162) | Return Points Win % | 46% (14129/30418) |
| 42.99% (46/61) | Slam W/L | 33.33% (1/2) |
| 44.96% (58/71) | Masters W/L | 0% (0/0) |
| 65.71% (23/12) | Cups W/L | 0% (0/0) |
| 51.91% (163/151) | Main Tour W/L | 14.29% (2/12) |
| 66.67% (138/69) | Challenger W/L | 55.31% (255/206) |
| 88.89% (8/1) | Futures W/L | 64.29% (63/35) |
| 54% (431/792) | Best of 3 Sets Win % | 55% (310/564) |
| 100% (1/1) | Best of 5 Sets Win % | 67% (2/3) |
| 50% (104/207) | Tiebreaks Win % (Total) | 56% (60/108) |
| 53% (144/272) | Deciding Set Win % | 60% (99/164) |
| 85% (420/358) | 1st Set Won, Won Match | 87% (299/259) |
| 15% (420/61) | 1st Set Won, Lost Match | 13% (299/39) |
| 20% (381/77) | 1st Set Lost, Won Match | 20% (275/56) |
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