RallyIQ

Game plan

Marketa Vondrousova v Daria Kasatkina

Every number combines what Marketa Vondrousova does well with what Daria Kasatkina 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 83%90%: 53%–97% · best of 5: 89%
Serve points won 55.6% / 48.5% Marketa / Daria · tour 58.1%
Strengths only, no similarity priors 85%serve 56.2% / 48.6%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Daria Kasatkina's tactical lookalikes and in their charted head-to-heads (lookalikes: −3.7 on serve, +0.5 on return vs expectation (617 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

CareerMarketaDaria
Direction choice−0.04 ±0.07
better than 47%
+0.08 ±0.07
better than 70%
Shot selection−0.68 ±0.17
better than 7%
−0.29 ±0.11
better than 22%
Execution+0.63 ±0.43
better than 83%
+1.39 ±0.30
better than 96%
Points left on the table2.99 ±0.12
lower than 11%
2.36 ±0.08
lower than 79%

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 +1.65, Daria Kasatkina +1.33. 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 DariaMatchupOptimal
Wide22%68%63%65.4%±6.537% ▲
Body21%61%52%55.0%±6.96% ▼
T57%63%67%61.2%±4.857%

Optimal v Daria Kasatkina: +0.9±0.9 per 100 first serves (faults included) over the current mix. Serving wide every time would read +4.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMarketa winsv DariaMatchupOptimal
Wide51%65%60%60.1%±4.851%
Body17%58%56%58.3%±7.12% ▼
T32%69%63%67.0%±5.947% ▲

Optimal v Daria Kasatkina: +0.4±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +5.0 per 100 first serves in before the returner adjusts.

Daria Kasatkina serving

Deuce court

1st serveNowDaria winsv MarketaMatchupOptimal
Wide43%63%61%57.4%±4.953% ▲
Body25%57%59%58.2%±6.530% ▲
T32%65%65%62.2%±5.617% ▼

Optimal v Marketa Vondrousova: +0.2±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowDaria winsv MarketaMatchupOptimal
Wide40%57%64%55.0%±5.732% ▼
Body22%52%56%52.3%±6.915% ▼
T38%61%63%59.3%±5.253% ▲

Optimal v Marketa Vondrousova: +0.6±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.3 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 DariaValue
FH slice through the middle52%−6.7+2.4−0.2−4.5±2.2
FH slice crosscourt21%−6.6+3.7−0.2−3.1±2.6
FH through the middle10%+4.2−0.9+1.8+5.1±2.5
FH slice down the line8%−10.5−2.1−1.1−13.6±3.2
FH crosscourt5%+5.3−1.3+2.3+6.3±3.7

Lean FH crosscourt: +9.4±3.8 per 100 returns v the current mix (532 returns charted)

1st serve to the backhand

ReturnNowTourOwnv DariaValue
BH through the middle52%+6.0+1.3+0.3+7.6±1.7
BH crosscourt19%+7.7+0.3+0.8+8.8±3.1
BH slice through the middle13%−6.2+0.7+2.1−3.4±2.5
BH down the line11%+2.2+2.0+3.5+7.6±3.7
BH slice down the line3%−12.5+1.2−1.1−12.3±3.5

Lean BH crosscourt: +3.3±2.7 per 100 returns v the current mix (740 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv DariaValue
FH through the middle41%−3.2−0.7+1.8−2.1±2.8
FH crosscourt35%+0.5+0.6+6.7+7.8±4.2
FH down the line18%−0.6+1.6+0.8+1.8±4.6
FH slice through the middle6%−15.2−1.1±0.0−16.3±1.3

Lean FH crosscourt: +6.6±3.1 per 100 returns v the current mix (142 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv DariaValue
BH through the middle50%−2.6+2.6+0.8+0.8±2.2
BH crosscourt36%+1.5+0.5−1.5+0.5±3.2
BH down the line13%−0.5−1.8+1.5−0.8±4.6

Lean BH through the middle: +0.4±1.7 per 100 returns v the current mix (351 returns charted, inside the 90% margin)

Daria Kasatkina returning

1st serve to the forehand

ReturnNowTourOwnv MarketaValue
FH through the middle39%+4.2+3.2−2.2+5.2±2.1
FH crosscourt21%+5.3+2.1+1.9+9.4±3.9
FH slice through the middle17%−6.7+0.9+1.0−4.8±2.3
FH down the line12%+1.5+6.0−5.7+1.9±4.4
FH slice crosscourt9%−6.6+1.7+0.8−4.1±2.7

Lean FH crosscourt: +6.6±3.3 per 100 returns v the current mix (1118 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MarketaValue
BH through the middle49%+6.0+2.8+1.3+10.2±1.7
BH crosscourt28%+7.7+2.8−1.7+8.8±2.9
BH down the line12%+2.2+3.5−2.5+3.2±4.0
BH slice through the middle6%−6.2+1.6+1.1−3.6±2.5
BH slice crosscourt3%−4.2−1.0+1.2−3.9±3.0

Lean BH through the middle: +3.0±1.3 per 100 returns v the current mix (1078 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MarketaValue
FH through the middle46%−3.2+3.7+1.6+2.0±2.8
FH crosscourt30%+0.5+0.6−1.0+0.1±4.5
FH down the line21%−0.6+2.6−5.3−3.3±5.2
FH slice through the middle4%−15.2+1.3+2.0−11.9±2.1

Lean FH through the middle: +2.2±2.3 per 100 returns v the current mix (226 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MarketaValue
BH through the middle35%−2.6+1.9−0.2−0.9±2.1
BH crosscourt31%+1.5+1.1+1.6+4.2±3.0
BH down the line15%−0.5+0.7+0.9+1.1±5.0
FH inside-out9%+1.4+0.4−5.3−3.6±4.3
FH through the middle7%−2.7+1.3+1.6+0.2±2.5

Lean BH crosscourt: +3.2±2.4 per 100 returns v the current mix (596 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
FH to their backhand · return +1+9.5±5.3+4.2+5.3
BH to their backhand · return +1+7.8±4.7+2.8+5.0
BH to the middle · return+6.9±3.1+2.8+4.1
BH slice to the middle · return+6.7±3.5+2.5+4.2
FH to their backhand · return+6.7±5.9−1.1+7.7
BH to their forehand · return +1+6.6±6.1−0.9+7.5

Avoid

ShotEdgeOwnTheirs
FH slice to their backhand · rally−3.4±5.1−1.8−1.6
FH to their forehand · return−3.2±4.8−2.4−0.8
FH to their backhand · serve +1−1.2±4.9−0.6−0.6
BH slice to their backhand · rally−0.6±3.8−1.8+1.2
BH slice to their forehand · rally−0.4±5.1−2.2+1.8

Daria Kasatkina

Favour

ShotEdgeOwnTheirs
BH to their forehand · serve +1+7.0±6.0+4.1+2.9
BH to the middle · return +1+5.9±3.4+2.7+3.2
FH to their backhand · return+5.6±4.8+5.1+0.6
BH to the middle · return+5.2±3.1+3.9+1.4
FH to their backhand · return +1+5.2±5.5+2.6+2.5
FH to the middle · serve +1+5.0±3.4+3.9+1.2

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return−4.3±5.6+5.0−9.3
BH to their backhand · rally−3.3±3.9+0.1−3.4
FH to their forehand · rally−2.8±4.0−0.9−1.9
FH to their backhand · serve +1−1.5±4.9+1.6−3.1
BH slice to their backhand · rally±0.0±3.7+3.1−3.1

Against Daria Kasatkina-like opponents

Marketa Vondrousova vMatchesServe pts wonReturn pts won
All charted opponents–56.8%45.0%
Players most similar to Daria Kasatkina4 54.3%46.8%

Similar by tactical fingerprint: Marie Bouzkova, Emma Navarro, Jaqueline Cristian, Emma Raducanu, Nao Hibino, Linda Fruhvirtova, Caroline Wozniacki, Simona Halep, Svetlana Kuznetsova, Elena Dementieva. When two players have rarely met, their records against these lookalikes fill the gap.