RallyIQ

Game plan

Qiang Wang v Varvara Gracheva

Every number combines what Qiang Wang does well with what Varvara Gracheva allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Qiang Wang wins, best of 3 46%90%: 8%–88% · best of 5: 45%
Serve points won 52.2% / 53.0% Qiang / Varvara · tour 55.0%
Strengths only, no similarity priors 49%serve 52.6% / 52.8%

Each player's serve and return strength is fitted against every opponent they were charted against, so a record built on weak opponents counts for less. At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers. The result is then nudged by Qiang Wang's record against Varvara Gracheva's tactical lookalikes and in their charted head-to-heads (lookalikes: −11.3 on serve, −6.8 on return vs expectation (90 points)). A game-by-game Markov chain turns point odds into match odds; the 90% range covers the uncertainty in the two strengths, not the nudges. Charted matches lean toward big events, so treat this as a scouting estimate, not a betting line.

Head to head, per 100 shots

CareerQiangVarvara
Direction choice+0.04 ±0.17
better than 61%
+0.06 ±0.12
better than 65%
Shot selection+0.37 ±0.16
better than 87%
+0.04 ±0.19
better than 49%
Execution+0.03 ±0.80
better than 62%
−0.42 ±0.65
better than 37%
Points left on the table2.24 ±0.25
lower than 90%
2.32 ±0.17
lower than 84%

Each player's career against an average tour player in the same position, adjusted for opponent strength, with a 90% margin (shots clustered by match). Points left on the table is the gap to the best-value direction for the same stroke, so lower is better. Percentiles are within each player's own tour. A side is highlighted only when the gap is larger than the margin on the difference.

Serve plan

The share of points the server wins when a first serve lands in that direction (hover a rate for its 90% interval; ± is the 90% margin). "Matchup" combines the server's rate with how this returner handles that serve. "Optimal" is the mix that wins most against this returner once they start reading a habit, at the response measured across the tour, and only within the range servers' habits actually vary. The gain over the current mix is how exploitable that mix is.

Qiang Wang serving

Deuce court

1st serveNowQiang winsv VarvaraMatchupOptimal
Wide36%61%65%59.9%±9.445% ▲
Body24%59%51%52.8%±11.39% ▼
T40%65%66%63.0%±10.446% ▲

Optimal v Varvara Gracheva: +0.6±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowQiang winsv VarvaraMatchupOptimal
Wide29%60%62%56.2%±11.044% ▲
Body20%50%60%53.6%±12.16% ▼
T52%52%66%53.9%±9.650% ▼

Optimal v Varvara Gracheva: +0.5±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.7 per 100 first serves in before the returner adjusts.

Varvara Gracheva serving

Deuce court

1st serveNowVarvara winsv QiangMatchupOptimal
Wide40%64%61%59.1%±9.240%
Body30%52%55%49.8%±11.015% ▼
T30%64%71%67.4%±10.045% ▲

Optimal v Qiang Wang: +1.2±1.1 per 100 first serves (faults included) over the current mix. Serving T every time would read +8.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowVarvara winsv QiangMatchupOptimal
Wide35%60%64%58.2%±10.535%
Body27%48%63%55.1%±12.012% ▼
T38%56%69%61.1%±9.953% ▲

Optimal v Qiang Wang: +0.6±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.7 per 100 first serves in before the returner adjusts.

Return plan

Value of each return, in points per 100 returns against an average return of the same serve (direction, court, surface): the tour's result with that return, the returner's own edge with it, and what this server gives up when it comes back to that side. Returns with no charted direction are left out, so values compare with each other rather than with zero. Depth isn't a choice here: missed returns have no depth. Serve quality isn't charted, so a block through the middle partly reflects the serve that forced it.

Qiang Wang returning

1st serve to the forehand

ReturnNowTourOwnv VarvaraValue
FH through the middle56%+4.2+2.6+3.3+10.1±2.8
FH down the line25%+1.5+2.7+1.1+5.4±4.7
FH crosscourt18%+5.3−0.1−2.1+3.1±4.4

Lean FH through the middle: +2.5±1.9 per 100 returns v the current mix (208 returns charted)

1st serve to the backhand

ReturnNowTourOwnv VarvaraValue
BH crosscourt41%+7.7+1.0+0.8+9.5±3.6
BH through the middle39%+6.0−0.9+0.3+5.5±2.8
BH down the line9%+2.2−1.3−0.1+0.8±4.3
BH slice crosscourt6%−4.2+0.3±0.0−3.8±1.6
BH slice through the middle6%−6.2±0.0+0.7−5.5±2.0

Lean BH crosscourt: +3.9±2.4 per 100 returns v the current mix (161 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv VarvaraValue
BH crosscourt45%+1.5+0.6−1.1+0.9±3.7
BH through the middle38%−2.6+1.6−0.1−1.1±2.8
BH down the line16%−0.5+1.2−2.5−1.8±4.9

Lean BH crosscourt: +1.2±2.4 per 100 returns v the current mix (104 returns charted, inside the 90% margin)

Varvara Gracheva returning

1st serve to the forehand

ReturnNowTourOwnv QiangValue
FH through the middle46%+4.2+1.0+0.1+5.3±2.9
FH crosscourt22%+5.3+0.4+4.1+9.9±4.4
FH down the line16%+1.5−1.7+1.6+1.5±4.7
FH slice through the middle9%−6.7−0.7−0.3−7.7±2.3
FH slice crosscourt5%−6.6+1.0−0.7−6.3±2.0

Lean FH crosscourt: +6.3±3.7 per 100 returns v the current mix (223 returns charted)

1st serve to the backhand

ReturnNowTourOwnv QiangValue
BH through the middle42%+6.0+0.8−1.0+5.9±2.8
BH crosscourt32%+7.7+2.2+3.4+13.3±3.7
BH down the line10%+2.2−0.7−0.3+1.2±4.3
BH slice through the middle9%−6.2−0.6+0.3−6.6±2.0
BH slice crosscourt7%−4.2+0.1−0.4−4.5±2.1

Lean BH crosscourt: +7.4±2.8 per 100 returns v the current mix (183 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv QiangValue
FH through the middle44%−3.2−0.3−0.3−3.7±2.9
FH crosscourt41%+0.5−1.5+2.3+1.3±4.2
FH down the line15%−0.6+2.8+2.7+4.9±4.3

Lean FH crosscourt: +1.7±2.8 per 100 returns v the current mix (41 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv QiangValue
BH through the middle45%−2.6+0.2+1.0−1.4±2.8
BH crosscourt38%+1.5+1.4+1.9+4.8±3.7
BH down the line16%−0.5−0.9+6.5+5.1±4.9

Lean BH down the line: +3.1±4.5 per 100 returns v the current mix (99 returns charted, inside the 90% margin)

Rally plan

Edge, in points per 100 shots: the hitter's skill with the shot (own) plus how much the receiver usually gives up against it (theirs), both measured against the tour average on clay. Each player's clay record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Qiang Wang

Favour

ShotEdgeOwnTheirs
FH to the middle · return+6.6±3.7+3.4+3.2
FH to their forehand · rally+4.0±4.5+2.2+1.8
FH to their backhand · return+3.8±4.3+2.9+0.9
FH to the middle · serve +1+3.4±3.4+2.2+1.1
BH to their backhand · rally+3.2±4.3+0.7+2.4
BH to their backhand · serve +1+3.0±4.9+0.8+2.2

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−6.3±5.9−6.0−0.3
BH to their backhand · return +1−3.1±4.6−1.1−2.0
FH to their forehand · serve +1−1.2±4.8−1.3+0.1
BH to their backhand · return−1.1±3.9+1.7−2.8
BH to the middle · rally−0.7±3.1−1.8+1.1

Varvara Gracheva

Favour

ShotEdgeOwnTheirs
BH to their backhand · serve +1+7.4±4.6+1.9+5.5
BH to their forehand · return+4.5±5.3−0.2+4.7
FH to their forehand · return+4.0±4.3−0.4+4.4
BH to their backhand · rally+3.8±4.2+1.2+2.6
FH to the middle · return+3.4±3.6+2.5+0.9
FH to their backhand · rally+3.2±5.0−1.2+4.4

Avoid

ShotEdgeOwnTheirs
FH to their forehand · rally−4.4±4.7−4.2−0.3
BH to the middle · rally−2.1±3.1−3.2+1.2
FH to their forehand · serve +1−2.1±4.9−2.9+0.8
FH to the middle · serve +1−0.6±2.8−0.3−0.3
BH to the middle · serve +1+0.8±2.9−0.6+1.4

Against Varvara Gracheva-like opponents

Qiang Wang vMatchesServe pts wonReturn pts won
All charted opponents–50.4%40.5%
Players most similar to Varvara Gracheva1 41.3%34.1%

Similar by tactical fingerprint: Iva Jovic, Anastasia Potapova, Anna Blinkova, Iga Swiatek, Kimberly Birrell, Emma Raducanu, Yue Yuan, Eugenie Bouchard, R, Andrea Petkovic. When two players have rarely met, their records against these lookalikes fill the gap.