RallyIQ

Game plan

Caroline Wozniacki v Irina Camelia Begu

Every number combines what Caroline Wozniacki does well with what Irina Camelia Begu 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 99%90%: 95%–100% · best of 5: 100%
Serve points won 66.3% / 47.1% Caroline / Irina · tour 58.1%
Strengths only, no similarity priors 99%serve 65.2% / 48.0%

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. At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Irina Camelia Begu's tactical lookalikes and in their charted head-to-heads (lookalikes: +5.7 on serve, +4.5 on return vs expectation (722 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

CareerCarolineIrina
Direction choice+0.03 ±0.05
better than 59%
−0.31 ±0.08
better than 6%
Shot selection+0.06 ±0.06
better than 52%
−0.15 ±0.15
better than 31%
Execution+2.22 ±0.16
better than 100%
−1.73 ±0.43
better than 7%
Points left on the table2.40 ±0.07
lower than 76%
2.91 ±0.10
lower than 15%

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.

Caroline Wozniacki serving

Deuce court

1st serveNowCaroline winsv IrinaMatchupOptimal
Wide42%67%71%72.6%±7.042%
Body25%62%61%65.0%±7.910% ▼
T33%71%74%76.9%±6.448% ▲

Optimal v Irina Camelia Begu: +0.6±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCaroline winsv IrinaMatchupOptimal
Wide35%68%76%78.3%±7.050% ▲
Body24%59%57%59.3%±9.39% ▼
T41%63%64%62.6%±7.541%

Optimal v Irina Camelia Begu: +1.1±0.9 per 100 first serves (faults included) over the current mix. Serving wide every time would read +11.0 per 100 first serves in before the returner adjusts.

Irina Camelia Begu serving

Deuce court

1st serveNowIrina winsv CarolineMatchupOptimal
Wide42%66%60%60.1%±7.257% ▲
Body17%56%50%48.7%±9.46% ▼
T40%54%63%48.3%±7.837% ▼

Optimal v Caroline Wozniacki: +0.4±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +6.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowIrina winsv CarolineMatchupOptimal
Wide43%52%60%46.5%±7.343%
Body22%56%47%46.9%±9.16% ▼
T36%64%59%58.3%±7.951% ▲

Optimal v Caroline Wozniacki: +0.9±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +7.5 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 IrinaValue
FH through the middle52%+4.2+3.4+1.4+8.9±2.1
FH crosscourt21%+5.3+3.9−2.3+7.0±3.4
FH down the line16%+1.5+6.2+0.5+8.2±3.8
FH slice through the middle7%−6.7−1.5−0.9−9.1±2.1
FH slice crosscourt2%−6.6−1.7+0.2−8.2±2.3

Lean FH through the middle: +2.4±1.4 per 100 returns v the current mix (2852 returns charted)

1st serve to the backhand

ReturnNowTourOwnv IrinaValue
BH through the middle45%+6.0+2.8+2.5+11.3±2.1
BH crosscourt36%+7.7+4.0−0.4+11.3±2.9
BH slice through the middle9%−6.2−1.9+1.0−7.1±2.1
BH down the line5%+2.2+5.0+2.8+9.9±4.4
BH slice down the line3%−12.5−2.1±0.0−14.6±2.6

Lean BH through the middle: +2.8±1.6 per 100 returns v the current mix (1809 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv IrinaValue
FH through the middle43%−3.2+3.7−1.9−1.3±2.5
FH down the line29%−0.6+2.5−2.7−0.7±4.4
FH crosscourt26%+0.5+3.0+1.9+5.5±3.9
BH inside-out1%+2.2+0.3−0.6+1.9±3.4
BH through the middle1%−1.0−0.3−0.3−1.6±2.0

Lean FH crosscourt: +5.0±3.3 per 100 returns v the current mix (983 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv IrinaValue
BH crosscourt54%+1.5+3.5−1.1+3.9±3.0
BH through the middle35%−2.6+4.1−0.3+1.2±2.4
BH down the line12%−0.5+2.0−0.6+0.9±4.6

Lean BH crosscourt: +1.3±1.7 per 100 returns v the current mix (834 returns charted, inside the 90% margin)

Irina Camelia Begu returning

1st serve to the forehand

ReturnNowTourOwnv CarolineValue
FH through the middle47%+4.2−1.9+0.9+3.1±2.4
FH down the line22%+1.5+1.7+3.6+6.8±3.8
FH crosscourt19%+5.3−0.8+1.4+5.9±3.3
FH slice through the middle9%−6.7−0.3+0.3−6.7±2.0
FH slice down the line3%−10.5+0.5−1.3−11.3±2.8

Lean FH down the line: +3.7±3.2 per 100 returns v the current mix (155 returns charted)

1st serve to the backhand

ReturnNowTourOwnv CarolineValue
BH through the middle53%+6.0−3.0±0.0+3.1±2.2
BH down the line26%+2.2−1.6−1.1−0.6±3.7
BH crosscourt13%+7.7−2.6+1.2+6.4±2.7
BH slice through the middle7%−6.2+0.5−1.3−7.0±1.9

Lean BH crosscourt: +4.5±2.8 per 100 returns v the current mix (126 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv CarolineValue
BH through the middle57%−2.6−3.0+1.8−3.7±2.3
BH down the line24%−0.5−0.6+2.9+1.7±4.3
BH crosscourt19%+1.5−0.9+0.3+0.8±2.7

Lean BH down the line: +3.3±3.5 per 100 returns v the current mix (91 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 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.

Caroline Wozniacki

Favour

ShotEdgeOwnTheirs
FH to their backhand · rally+6.3±4.8+2.2+4.1
BH to the middle · return +1+6.2±3.4+3.8+2.5
BH to their forehand · rally+6.2±5.5+8.0−1.7
FH to their forehand · rally+4.9±4.3+1.4+3.5
FH to the middle · return+4.7±3.4+3.7+1.0
BH to the middle · rally+4.7±2.9+3.7+1.0

Avoid

ShotEdgeOwnTheirs
BH to their backhand · serve +1−1.7±4.7+4.6−6.3
FH to their forehand · serve +1−1.4±4.9+0.9−2.3
FH to the middle · return +1±0.0±3.5+1.2−1.2
BH to their backhand · rally+1.0±4.0+2.9−1.9
FH to the middle · serve +1+1.0±3.4+2.2−1.2

Irina Camelia Begu

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+3.2±5.5−1.4+4.6
BH to the middle · serve +1+1.6±3.3+0.4+1.2
BH to their backhand · rally+1.0±4.0+0.8+0.3
BH to their forehand · return+0.8±5.5−3.3+4.1
BH to their forehand · serve +1+0.4±5.0−1.5+1.9
FH to their forehand · serve +1+0.4±5.2−0.1+0.5

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−8.9±4.4−8.4−0.5
BH to the middle · return−8.7±3.3−9.4+0.7
BH to the middle · rally−3.1±2.9−5.0+2.0
FH to their forehand · rally−2.8±4.1−3.5+0.6
FH to their backhand · rally−2.8±4.8−5.6+2.8

Against Irina Camelia Begu-like opponents

Caroline Wozniacki vMatchesServe pts wonReturn pts won
All charted opponents–59.8%48.8%
Players most similar to Irina Camelia Begu5 64.8%49.1%

Similar by tactical fingerprint: Cristina Bucsa, Karolina Pliskova, Maya Joint, Jaqueline Cristian, Robin Montgomery, Victoria Mboko, Nao Hibino, Shelby Rogers, Anett Kontaveit, Alison Riske Amritraj. When two players have rarely met, their records against these lookalikes fill the gap.