RallyIQ

Game plan

Caroline Wozniacki v Alina Korneeva

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

Forecast

Caroline Wozniacki wins, best of 3 62%90%: 29%–88% · best of 5: 65%
Serve points won 53.5% / 51.3% Caroline / Alina · tour 55.0%
Strengths only, no similarity priors 56%serve 53.0% / 51.9%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Caroline Wozniacki's record against Alina Korneeva's tactical lookalikes and in their charted head-to-heads (lookalikes: +4.8 on serve, +4.8 on return vs expectation (408 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

CareerCarolineAlina
Direction choice+0.03 ±0.05
better than 59%
−0.01 ±0.10
better than 51%
Shot selection+0.06 ±0.06
better than 52%
+0.25 ±0.25
better than 73%
Execution+2.22 ±0.16
better than 100%
+0.66 ±0.76
better than 84%
Points left on the table2.40 ±0.07
lower than 76%
2.48 ±0.14
lower than 67%

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: Caroline Wozniacki +3.02, Alina Korneeva +1.64. 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.

Caroline Wozniacki serving

Deuce court

1st serveNowCaroline winsv AlinaMatchupOptimal
Wide42%67%60%61.9%±6.556% ▲
Body25%62%52%56.8%±7.910% ▼
T33%71%64%66.7%±8.434%

Optimal v Alina Korneeva: +0.4±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCaroline winsv AlinaMatchupOptimal
Wide35%68%60%62.6%±7.550% ▲
Body24%59%51%53.5%±8.29% ▼
T41%63%51%49.4%±7.941%

Optimal v Alina Korneeva: +0.2±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +7.6 per 100 first serves in before the returner adjusts.

Alina Korneeva serving

Deuce court

1st serveNowAlina winsv CarolineMatchupOptimal
Wide36%66%60%60.6%±7.635%
Body36%54%50%46.6%±7.721% ▼
T29%66%63%60.5%±8.944% ▲

Optimal v Caroline Wozniacki: +0.8±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +5.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAlina winsv CarolineMatchupOptimal
Wide48%59%60%53.9%±7.349%
Body26%62%47%53.5%±9.110% ▼
T26%70%59%64.2%±9.041% ▲

Optimal v Caroline Wozniacki: +1.0±1.0 per 100 first serves (faults included) over the current mix. Serving T every time would read +7.7 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.

Caroline Wozniacki returning

1st serve to the forehand

ReturnNowTourOwnv AlinaValue
FH through the middle52%+4.2+3.4+0.2+7.8±2.3
FH crosscourt21%+5.3+3.9+1.2+10.4±3.5
FH down the line16%+1.5+6.2+0.7+8.4±3.9
FH slice through the middle7%−6.7−1.5+0.1−8.1±2.1
FH slice crosscourt2%−6.6−1.7+0.4−7.9±2.5

Lean FH crosscourt: +3.7±3.1 per 100 returns v the current mix (2852 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AlinaValue
BH through the middle45%+6.0+2.8+1.6+10.4±2.1
BH crosscourt36%+7.7+4.0−0.2+11.4±2.9
BH slice through the middle9%−6.2−1.9±0.0−8.1±2.0
BH down the line5%+2.2+5.0+2.0+9.1±4.6
BH slice down the line3%−12.5−2.1−0.2−14.8±3.0

Lean BH crosscourt: +3.4±2.1 per 100 returns v the current mix (1809 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AlinaValue
FH through the middle43%−3.2+3.7+2.4+2.9±2.5
FH down the line29%−0.6+2.5+1.8+3.8±4.6
FH crosscourt26%+0.5+3.0+1.2+4.7±3.9
BH inside-out1%+2.2+0.3−1.8+0.7±3.8
BH through the middle1%−1.0−0.3+1.5+0.3±2.0

Lean FH crosscourt: +1.3±3.3 per 100 returns v the current mix (983 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv AlinaValue
BH crosscourt54%+1.5+3.5+2.5+7.5±3.0
BH through the middle35%−2.6+4.1+1.5+3.1±2.4
BH down the line12%−0.5+2.0−1.8−0.4±5.0

Lean BH crosscourt: +2.4±1.7 per 100 returns v the current mix (834 returns charted)

Alina Korneeva returning

1st serve to the forehand

ReturnNowTourOwnv CarolineValue
FH through the middle42%+4.2+2.6+0.9+7.6±2.3
FH crosscourt33%+5.3+1.8+1.4+8.5±3.4
FH slice through the middle10%−6.7+0.8+0.3−5.5±2.2
FH down the line9%+1.5+2.4+3.6+7.4±3.5
FH slice crosscourt6%−6.6+0.7−1.1−7.1±2.5

Lean FH crosscourt: +2.9±2.5 per 100 returns v the current mix (206 returns charted)

1st serve to the backhand

ReturnNowTourOwnv CarolineValue
BH through the middle61%+6.0+2.3±0.0+8.3±2.2
BH crosscourt24%+7.7+1.9+1.2+10.8±2.9
BH down the line12%+2.2+0.5−1.1+1.6±3.4
BH slice through the middle4%−6.2−0.8−1.3−8.4±1.7

Lean BH crosscourt: +3.3±2.6 per 100 returns v the current mix (127 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv CarolineValue
FH crosscourt46%+0.5+0.3+0.8+1.6±3.4
FH through the middle30%−3.2+0.3+1.8−1.1±2.2
FH down the line24%−0.6+3.7+1.5+4.7±3.8

Lean FH crosscourt: +0.1±2.2 per 100 returns v the current mix (50 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv CarolineValue
BH crosscourt44%+1.5−0.8+0.3+1.0±2.8
BH through the middle37%−2.6+0.2+1.8−0.5±2.1
BH down the line19%−0.5−4.1+2.9−1.8±3.8

Lean BH crosscourt: +1.1±1.9 per 100 returns v the current mix (52 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.

Caroline Wozniacki

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+6.1±4.4+4.6+1.5
BH to their forehand · return+5.6±4.8+4.9+0.7
FH to the middle · rally+5.5±2.1+2.2+3.2
BH to their backhand · return+5.5±3.1+3.8+1.6
FH to the middle · return +1+5.4±2.8+3.3+2.1
BH to the middle · return+5.2±2.3+2.6+2.6

Avoid

ShotEdgeOwnTheirs
BH slice to their backhand · rally−3.2±3.3−3.1−0.1
FH to their backhand · return +1−0.6±4.2+0.9−1.5
FH to their forehand · serve +1−0.1±3.9+2.2−2.3
FH to their backhand · rally+0.6±2.9+2.0−1.4
FH to their backhand · serve +1+1.2±3.7+2.9−1.7

Alina Korneeva

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+7.4±3.7+2.3+5.0
FH to their forehand · return+6.8±4.0+3.6+3.2
FH to the middle · return+5.9±2.5+2.5+3.4
BH to their backhand · return +1+5.0±3.4+0.9+4.1
FH to the middle · serve +1+4.6±2.8+2.2+2.4
FH to their backhand · return +1+4.3±4.2−0.6+4.9

Avoid

ShotEdgeOwnTheirs
BH to their forehand · return−2.4±4.6−1.6−0.7
BH to their backhand · serve +1−2.3±3.5−4.2+1.9
BH to their backhand · rally+1.0±2.4−1.0+2.0
BH to their forehand · rally+1.3±3.9−1.1+2.4
FH to their forehand · rally+1.6±2.4+1.2+0.5

Against Alina Korneeva-like opponents

Caroline Wozniacki vMatchesServe pts wonReturn pts won
All charted opponents–59.8%48.8%
Players most similar to Alina Korneeva3 63.6%51.8%

Similar by tactical fingerprint: Anna Blinkova, Marta Kostyuk, Leylah Fernandez, Magda Linette, Emma Navarro, Jaqueline Cristian, Sara Bejlek, Nao Hibino, Victoria Azarenka, Flavia Pennetta. When two players have rarely met, their records against these lookalikes fill the gap.