RallyIQ

Game plan

Qinwen Zheng v Elina Svitolina

Every number combines what Qinwen Zheng does well with what Elina Svitolina allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Qinwen Zheng wins, best of 3 57%90%: 31%–80% · best of 5: 59%
Serve points won 57.3% / 56.0% Qinwen / Elina · tour 55.1%
Strengths only, no similarity priors 55%serve 57.0% / 56.0%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Qinwen Zheng's record against Elina Svitolina's tactical lookalikes and in their charted head-to-heads (lookalikes: +8.3 on serve, +1.7 on return vs expectation (117 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

CareerQinwenElina
Direction choice+0.01 ±0.05
better than 53%
−0.09 ±0.04
better than 37%
Shot selection+0.42 ±0.08
better than 91%
−0.08 ±0.06
better than 36%
Execution−0.51 ±0.36
better than 32%
+0.90 ±0.18
better than 88%
Points left on the table2.65 ±0.09
lower than 43%
2.66 ±0.05
lower than 41%

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.

Structural compatibility

Expected edge per 100 rally shots from style alone: Qinwen Zheng −0.63, Elina Svitolina +0.24. Each player's shot mix weighted by their own skill with each shot and by how much the other gives up against it. This is why some rankings gaps don't hold in a given matchup.

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.

Qinwen Zheng serving

Deuce court

1st serveNowQinwen winsv ElinaMatchupOptimal
Wide47%73%65%72.8%±3.662% ▲
Body9%59%57%58.8%±7.10% ▼
T43%77%68%77.6%±4.038% ▼

Optimal v Elina Svitolina: +0.5±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowQinwen winsv ElinaMatchupOptimal
Wide50%74%64%72.6%±4.343% ▼
Body8%60%58%61.9%±8.00% ▼
T42%73%66%74.9%±3.957% ▲

Optimal v Elina Svitolina: +0.8±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +2.2 per 100 first serves in before the returner adjusts.

Elina Svitolina serving

Deuce court

1st serveNowElina winsv QinwenMatchupOptimal
Wide39%69%64%67.0%±3.854% ▲
Body17%56%53%51.3%±5.52% ▼
T44%70%65%66.9%±4.844%

Optimal v Qinwen Zheng: +0.9±0.7 per 100 first serves (faults included) over the current mix. Serving wide every time would read +2.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowElina winsv QinwenMatchupOptimal
Wide43%69%60%64.0%±4.041% ▼
Body15%59%55%58.5%±6.43% ▼
T41%64%66%65.2%±5.056% ▲

Optimal v Qinwen Zheng: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.6 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.

Qinwen Zheng returning

1st serve to the forehand

ReturnNowTourOwnv ElinaValue
FH through the middle54%+4.2+0.4−0.3+4.3±1.7
FH down the line26%+1.5−2.7+2.2+1.0±3.4
FH crosscourt13%+5.3−0.3−2.0+3.1±3.4
FH slice through the middle4%−6.7−0.9−0.4−8.0±2.2
FH slice crosscourt2%−6.6+0.3−1.4−7.8±2.5

Lean FH through the middle: +1.9±1.2 per 100 returns v the current mix (687 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ElinaValue
BH through the middle51%+6.0−0.5−0.2+5.4±1.6
BH down the line26%+2.2−0.4−0.5+1.3±3.4
BH crosscourt16%+7.7+1.6−0.3+9.1±2.8
BH slice through the middle3%−6.2+0.1−0.2−6.3±2.1
BH slice down the line2%−12.5−0.9−1.7−15.1±3.3

Lean BH crosscourt: +5.2±2.7 per 100 returns v the current mix (637 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ElinaValue
FH through the middle40%−3.2+0.3−0.1−3.0±2.4
FH crosscourt33%+0.5−0.1±0.0+0.5±3.6
FH down the line27%−0.6−0.1+1.8+1.2±4.4

Lean FH down the line: +1.9±3.5 per 100 returns v the current mix (178 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv ElinaValue
BH through the middle37%−2.6−0.8−0.5−3.8±2.0
BH crosscourt30%+1.5+0.2−0.2+1.5±2.7
BH down the line21%−0.5−4.1+2.0−2.7±4.2
FH through the middle5%−2.7+1.7−0.1−1.1±2.0
FH inside-in4%+0.7−0.5±0.0+0.3±3.4
FH inside-out4%+1.4−0.3+1.8+2.9±3.2

Lean FH inside-out: +4.3±3.4 per 100 returns v the current mix (389 returns charted)

Elina Svitolina returning

1st serve to the forehand

ReturnNowTourOwnv QinwenValue
FH through the middle48%+4.2+2.2−1.3+5.1±1.8
FH crosscourt18%+5.3+1.2−2.1+4.4±3.4
FH down the line14%+1.5−0.5−1.3−0.3±3.8
FH slice through the middle12%−6.7+1.1−0.8−6.4±2.1
FH slice crosscourt5%−6.6−1.1−0.4−8.1±2.6

Lean FH through the middle: +3.4±1.3 per 100 returns v the current mix (2739 returns charted)

1st serve to the backhand

ReturnNowTourOwnv QinwenValue
BH through the middle48%+6.0+1.7−1.9+5.9±1.8
BH crosscourt29%+7.7+1.4−3.9+5.3±2.7
BH down the line11%+2.2+1.5−3.7±0.0±4.1
BH slice through the middle5%−6.2−1.8−2.8−10.9±2.5
BH slice crosscourt3%−4.2−2.2−0.3−6.7±3.0

Lean BH through the middle: +2.6±1.3 per 100 returns v the current mix (2082 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv QinwenValue
FH through the middle49%−3.2+0.7+0.6−2.0±2.3
FH crosscourt28%+0.5+1.8−0.6+1.7±3.8
FH down the line19%−0.6−1.8+0.9−1.4±4.9
FH slice through the middle3%−15.2+0.6±0.0−14.6±2.3

Lean FH crosscourt: +2.9±3.1 per 100 returns v the current mix (613 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv QinwenValue
BH through the middle42%−2.6+1.3−0.3−1.6±1.7
BH crosscourt42%+1.5+1.5−0.3+2.7±2.4
BH down the line12%−0.5−0.3+1.3+0.5±4.5
FH through the middle1%−2.7−0.5+0.6−2.6±2.2
FH inside-out1%+1.4−0.6+0.9+1.7±3.8

Lean BH crosscourt: +2.2±1.7 per 100 returns v the current mix (1205 returns charted)

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.

Qinwen Zheng

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+3.6±3.6+2.2+1.4
BH to their forehand · return +1+3.2±5.6+1.9+1.3
BH to their backhand · return +1+3.1±3.6−1.1+4.2
FH to the middle · serve +1+2.3±2.7+1.8+0.5
FH to the middle · return+2.2±2.1+1.4+0.8
FH to their forehand · return +1+1.6±3.8+0.4+1.1

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−7.3±3.9−6.0−1.2
BH to their forehand · return−4.3±4.3−3.8−0.5
BH slice to their backhand · rally−4.3±3.6−4.1−0.2
FH to the middle · rally−3.2±2.2−2.4−0.8
BH to their forehand · serve +1−3.1±5.2−3.4+0.3

Elina Svitolina

Favour

ShotEdgeOwnTheirs
FH to their backhand · return +1+3.1±4.5+3.1±0.0
BH to their backhand · return +1+2.5±3.5+1.9+0.7
FH to their forehand · return +1+1.8±4.2+1.0+0.7
BH to their backhand · serve +1+1.6±3.3+0.9+0.7
FH to their backhand · return+1.6±4.5+1.1+0.5
BH to the middle · return +1+1.5±2.7+1.3+0.2

Avoid

ShotEdgeOwnTheirs
BH slice to the middle · return−7.3±3.4−2.0−5.3
BH to their backhand · return−5.5±2.9−0.5−5.0
BH slice to the middle · rally−2.8±3.0−2.5−0.4
BH slice to their backhand · rally−1.7±3.7−1.4−0.3
BH to the middle · return−1.1±2.1+1.0−2.1

Against Elina Svitolina-like opponents

Qinwen Zheng vMatchesServe pts wonReturn pts won
All charted opponents–59.1%44.6%
Players most similar to Elina Svitolina1 66.0%47.0%

Similar by tactical fingerprint: Jessica Pegula, Maya Joint, Jaqueline Cristian, Maria Sakkari, Ajla Tomljanovic, Ana Bogdan, Heather Watson, Irina Camelia Begu, Andrea Petkovic, Johanna Larsson. When two players have rarely met, their records against these lookalikes fill the gap.