RallyIQ

Game plan

Marketa Vondrousova v Caroline Wozniacki

Every number combines what Marketa Vondrousova does well with what Caroline Wozniacki allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Marketa Vondrousova wins, best of 3 42%90%: 17%–71% · best of 5: 40%
Serve points won 54.6% / 56.2% Marketa / Caroline · tour 58.1%
Strengths only, no similarity priors 41%serve 54.6% / 56.3%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Marketa Vondrousova's record against Caroline Wozniacki's tactical lookalikes and in their charted head-to-heads (lookalikes: +0.1 on serve, +0.7 on return vs expectation (457 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

CareerMarketaCaroline
Direction choice−0.04 ±0.07
better than 47%
+0.03 ±0.05
better than 59%
Shot selection−0.68 ±0.17
better than 7%
+0.06 ±0.06
better than 52%
Execution+0.63 ±0.43
better than 83%
+2.22 ±0.16
better than 100%
Points left on the table2.99 ±0.12
lower than 11%
2.40 ±0.07
lower than 76%

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: Marketa Vondrousova +1.85, Caroline Wozniacki +1.83. 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.

Marketa Vondrousova serving

Deuce court

1st serveNowMarketa winsv CarolineMatchupOptimal
Wide22%68%60%62.4%±6.437% ▲
Body21%61%50%53.4%±6.46% ▼
T57%63%63%56.9%±4.457%

Optimal v Caroline Wozniacki: +0.6±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +5.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMarketa winsv CarolineMatchupOptimal
Wide51%65%60%59.9%±4.461% ▲
Body17%58%47%49.6%±6.72% ▼
T32%69%59%63.1%±5.737% ▲

Optimal v Caroline Wozniacki: +1.0±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +3.9 per 100 first serves in before the returner adjusts.

Caroline Wozniacki serving

Deuce court

1st serveNowCaroline winsv MarketaMatchupOptimal
Wide42%67%61%62.6%±4.257% ▲
Body25%62%59%63.3%±5.710% ▼
T33%71%65%68.2%±4.633%

Optimal v Marketa Vondrousova: +0.3±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCaroline winsv MarketaMatchupOptimal
Wide35%68%64%66.1%±5.035%
Body24%59%56%58.7%±6.19% ▼
T41%63%63%61.5%±4.656% ▲

Optimal v Marketa Vondrousova: +0.5±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.7 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.

Marketa Vondrousova returning

1st serve to the forehand

ReturnNowTourOwnv CarolineValue
FH slice through the middle52%−6.7+2.4+0.3−4.0±1.9
FH slice crosscourt21%−6.6+3.7−1.3−4.2±2.7
FH through the middle10%+4.2−0.9+0.9+4.2±2.4
FH slice down the line8%−10.5−2.1−1.1−13.7±3.4
FH crosscourt5%+5.3−1.3+3.6+7.5±3.4

Lean FH crosscourt: +10.7±3.5 per 100 returns v the current mix (532 returns charted)

1st serve to the backhand

ReturnNowTourOwnv CarolineValue
BH through the middle52%+6.0+1.3±0.0+7.3±1.5
BH crosscourt19%+7.7+0.3−1.1+6.9±2.7
BH slice through the middle13%−6.2+0.7−1.3−6.8±2.2
BH down the line11%+2.2+2.0+1.2+5.3±3.7
BH slice down the line3%−12.5+1.2−0.1−11.4±3.4

Lean BH through the middle: +3.0±1.0 per 100 returns v the current mix (740 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv CarolineValue
FH through the middle41%−3.2−0.7+1.8−2.0±2.5
FH crosscourt35%+0.5+0.6+1.5+2.7±3.7
FH down the line18%−0.6+1.6+0.8+1.8±4.1
FH slice through the middle6%−15.2−1.1+1.8−14.5±2.2

Lean FH crosscourt: +3.1±2.7 per 100 returns v the current mix (142 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv CarolineValue
BH through the middle50%−2.6+2.6+1.8+1.9±2.0
BH crosscourt36%+1.5+0.5+2.9+4.9±2.9
BH down the line13%−0.5−1.8+0.3−2.0±4.3

Lean BH crosscourt: +2.4±2.2 per 100 returns v the current mix (351 returns charted)

Caroline Wozniacki returning

1st serve to the forehand

ReturnNowTourOwnv MarketaValue
FH through the middle52%+4.2+3.4−2.2+5.3±1.8
FH crosscourt21%+5.3+3.9+1.9+11.2±3.5
FH down the line16%+1.5+6.2−5.7+2.0±3.8
FH slice through the middle7%−6.7−1.5+1.0−7.2±2.3
FH slice crosscourt2%−6.6−1.7+0.8−7.5±2.8

Lean FH crosscourt: +6.5±3.0 per 100 returns v the current mix (2852 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MarketaValue
BH through the middle45%+6.0+2.8+1.3+10.2±1.6
BH crosscourt36%+7.7+4.0−1.7+10.0±2.6
BH slice through the middle9%−6.2−1.9+1.1−7.0±2.3
BH down the line5%+2.2+5.0−2.5+4.6±4.2
BH slice down the line3%−12.5−2.1−0.5−15.1±3.6

Lean BH through the middle: +2.9±1.3 per 100 returns v the current mix (1809 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MarketaValue
FH through the middle43%−3.2+3.7+1.6+2.1±2.3
FH down the line29%−0.6+2.5−5.3−3.3±4.5
FH crosscourt26%+0.5+3.0−1.0+2.5±3.9
BH inside-out1%+2.2+0.3+0.9+3.4±3.8
BH through the middle1%−1.0−0.3−0.2−1.5±1.6

Lean FH crosscourt: +2.1±3.3 per 100 returns v the current mix (983 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MarketaValue
BH crosscourt54%+1.5+3.5+1.6+6.6±2.6
BH through the middle35%−2.6+4.1−0.2+1.3±2.0
BH down the line12%−0.5+2.0+0.9+2.4±5.0

Lean BH crosscourt: +2.3±1.5 per 100 returns v the current mix (834 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 grass. Each player's grass record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Marketa Vondrousova

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+8.0±5.1+3.9+4.1
BH to their forehand · serve +1+6.6±5.7+4.7+1.9
FH to their backhand · rally+5.0±3.7+2.2+2.8
BH lob to the middle · rally+4.5±3.4+2.8+1.7
FH slice to the middle · return+4.4±3.1+3.8+0.6
BH to their backhand · return +1+4.2±4.5+2.8+1.5

Avoid

ShotEdgeOwnTheirs
BH drop shot to their backhand · rally−6.5±5.8−4.4−2.1
FH to the middle · return−3.9±3.4−4.4+0.5
FH slice to their backhand · rally−3.0±5.0−1.8−1.2
BH slice to their forehand · rally−2.8±4.6−2.2−0.7
BH slice to their backhand · rally−1.6±3.8−1.8+0.2

Caroline Wozniacki

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+8.9±4.3+8.0+1.0
BH to the middle · return +1+7.0±3.3+3.8+3.2
FH volley to their backhand · rally+6.9±7.4+2.5+4.4
FH to their backhand · return +1+6.2±5.3+3.7+2.5
BH to the middle · rally+6.2±2.6+3.7+2.5
BH to their forehand · serve +1+5.8±5.4+2.9+2.9

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return−6.0±5.3+3.3−9.3
Smash to their forehand · rally−4.7±6.2±0.0−4.6
BH slice to their backhand · rally−4.4±3.8−1.3−3.1
BH volley to their forehand · rally−2.3±7.2+6.0−8.4
FH to their backhand · serve +1−2.2±4.8+0.9−3.1

Against Caroline Wozniacki-like opponents

Marketa Vondrousova vMatchesServe pts wonReturn pts won
All charted opponents–56.8%45.0%
Players most similar to Caroline Wozniacki3 59.0%47.2%

Similar by tactical fingerprint: Marie Bouzkova, Daria Kasatkina, Emma Navarro, Emma Raducanu, Victoria Azarenka, Linda Fruhvirtova, Anna Karolina Schmiedlova, Alize Cornet, Alison Riske Amritraj, Agnieszka Radwanska. When two players have rarely met, their records against these lookalikes fill the gap.