RallyIQ

Game plan

Jaqueline Cristian v Angelique Kerber

Every number combines what Jaqueline Cristian does well with what Angelique Kerber allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Jaqueline Cristian wins, best of 3 30%90%: 15%–50% · best of 5: 26%
Serve points won 55.6% / 59.5% Jaqueline / Angelique · tour 56.4%
Strengths only, no similarity priors 28%serve 55.3% / 59.7%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Jaqueline Cristian's record against Angelique Kerber's tactical lookalikes and in their charted head-to-heads (head-to-head: +4.1 on serve, +2.6 on return vs expectation (194 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

CareerJaquelineAngelique
Direction choice−0.15 ±0.12
better than 25%
+0.18 ±0.05
better than 83%
Shot selection−0.05 ±0.12
better than 41%
+0.05 ±0.08
better than 50%
Execution−0.25 ±0.59
better than 46%
+1.65 ±0.29
better than 97%
Points left on the table2.61 ±0.17
lower than 51%
2.57 ±0.07
lower than 56%

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: Jaqueline Cristian +1.54, Angelique Kerber +1.92. 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.

Jaqueline Cristian serving

Deuce court

1st serveNowJaqueline winsv AngeliqueMatchupOptimal
Wide33%58%69%61.6%±6.448% ▲
Body25%57%59%59.2%±7.610% ▼
T42%69%63%64.7%±6.542%

Optimal v Angelique Kerber: +0.3±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJaqueline winsv AngeliqueMatchupOptimal
Wide37%63%67%64.8%±6.952% ▲
Body21%54%58%55.7%±8.45% ▼
T42%65%60%60.1%±6.343%

Optimal v Angelique Kerber: +0.5±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.8 per 100 first serves in before the returner adjusts.

Angelique Kerber serving

Deuce court

1st serveNowAngelique winsv JaquelineMatchupOptimal
Wide36%65%72%71.5%±5.851% ▲
Body27%56%58%56.7%±7.912% ▼
T37%59%70%61.6%±6.837%

Optimal v Jaqueline Cristian: +1.1±0.9 per 100 first serves (faults included) over the current mix. Serving wide every time would read +7.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAngelique winsv JaquelineMatchupOptimal
Wide62%62%74%70.9%±5.776% ▲
Body19%54%55%53.2%±8.64% ▼
T18%71%68%73.7%±6.520% ▲

Optimal v Jaqueline Cristian: +1.5±0.9 per 100 first serves (faults included) over the current mix. Serving T every time would read +5.8 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.

Jaqueline Cristian returning

1st serve to the forehand

ReturnNowTourOwnv AngeliqueValue
FH through the middle53%+4.2+1.3+1.1+6.6±2.2
FH crosscourt22%+5.3+2.9+3.8+12.0±3.8
FH slice through the middle10%−6.7−1.3−1.0−9.0±2.5
FH down the line9%+1.5−1.4−0.6−0.4±4.2
FH slice crosscourt4%−6.6+0.6+1.0−5.1±2.4

Lean FH crosscourt: +7.1±3.2 per 100 returns v the current mix (313 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AngeliqueValue
BH through the middle42%+6.0+0.4+1.3+7.7±2.1
BH crosscourt23%+7.7−0.2+6.5+14.1±3.0
BH down the line14%+2.2−2.8−1.7−2.3±3.9
BH slice through the middle11%−6.2−0.6+0.6−6.2±2.4
BH slice crosscourt5%−4.2+0.1+2.1−2.0±2.8

Lean BH crosscourt: +9.5±2.5 per 100 returns v the current mix (285 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AngeliqueValue
FH through the middle53%−3.2−0.1+2.0−1.2±2.8
FH crosscourt38%+0.5+1.3+2.0+3.8±4.2
FH down the line9%−0.6+1.9+2.4+3.7±4.1

Lean FH crosscourt: +2.7±3.0 per 100 returns v the current mix (58 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv AngeliqueValue
BH through the middle44%−2.6+1.4−0.1−1.4±2.2
BH crosscourt25%+1.5+0.2+3.7+5.4±3.1
FH inside-out11%+1.4+0.7+2.4+4.5±4.0
BH down the line8%−0.5−1.9+0.4−2.1±4.1
FH through the middle7%−2.7+1.0+2.0+0.3±2.2

Lean BH crosscourt: +4.2±2.6 per 100 returns v the current mix (167 returns charted)

Angelique Kerber returning

1st serve to the forehand

ReturnNowTourOwnv JaquelineValue
FH through the middle53%+4.2+2.6+0.3+7.0±2.2
FH crosscourt34%+5.3+5.1−2.7+7.8±3.7
FH down the line11%+1.5+5.5+0.3+7.4±4.5
FH slice through the middle1%−6.7−0.1+0.3−6.5±2.3
BH through the middle1%+5.2+1.3−0.1+6.5±2.1

Lean FH crosscourt: +0.7±2.7 per 100 returns v the current mix (1007 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv JaquelineValue
BH through the middle48%+6.0+1.1−0.1+7.1±2.0
BH crosscourt30%+7.7−0.4−1.7+5.7±3.0
BH down the line12%+2.2+7.3+3.3+12.8±4.3
BH slice through the middle5%−6.2−0.7+0.2−6.7±2.4
BH slice crosscourt2%−4.2−0.4−2.6−7.2±2.6

Lean BH down the line: +6.7±4.0 per 100 returns v the current mix (1499 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JaquelineValue
FH crosscourt39%+0.5−1.4−0.5−1.4±4.3
FH down the line32%−0.6+1.3+3.8+4.5±5.1
FH through the middle28%−3.2+0.3+1.3−1.6±3.0

Lean FH down the line: +4.0±3.9 per 100 returns v the current mix (285 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv JaquelineValue
BH crosscourt39%+1.5+2.8−1.5+2.7±3.2
BH through the middle37%−2.6+1.3−1.5−2.8±2.4
BH down the line20%−0.5+4.0+1.3+4.8±4.9
FH inside-in1%+0.7−0.9−0.5−0.7±4.1
FH through the middle1%−2.7+1.2+1.3−0.2±2.3

Lean BH down the line: +3.8±4.2 per 100 returns v the current mix (646 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 hard. Each player's hard record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Jaqueline Cristian

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+5.0±3.8+2.0+3.0
FH to their forehand · return+4.9±4.9+2.3+2.6
FH to their backhand · return+4.3±5.0−0.9+5.2
BH to their forehand · return+4.1±4.8−2.4+6.5
FH to the middle · return+4.0±2.4+1.4+2.6
BH to their forehand · serve +1+3.6±5.1−1.5+5.1

Avoid

ShotEdgeOwnTheirs
BH to their backhand · return +1−5.2±4.1−2.7−2.6
BH to their forehand · return +1−2.3±5.7−6.1+3.8
BH to their backhand · return−1.4±3.8+0.4−1.8
BH slice to the middle · rally−1.2±2.9−2.2+0.9
BH to the middle · rally+0.3±1.7−0.7+1.1

Angelique Kerber

Favour

ShotEdgeOwnTheirs
BH to their backhand · return+7.5±3.7+3.6+3.8
FH to the middle · return +1+6.3±3.3+2.2+4.0
BH to their forehand · rally+3.8±3.7+2.6+1.2
BH to their backhand · rally+3.2±2.4+0.3+2.9
BH to the middle · serve +1+2.9±2.6+1.9+1.1
BH to their backhand · serve +1+2.9±4.1+3.0−0.1

Avoid

ShotEdgeOwnTheirs
BH to their forehand · serve +1−3.4±5.4+2.3−5.7
BH to their backhand · return +1−2.5±4.0−2.9+0.4
FH to their forehand · rally−0.9±2.3−0.3−0.5
FH to the middle · rally−0.8±2.0+0.1−0.9
FH to their forehand · return +1−0.7±4.2−1.5+0.8

Against Angelique Kerber-like opponents

Jaqueline Cristian vMatchesServe pts wonReturn pts won
All charted opponents–54.7%38.4%
Angelique Kerber (charted head-to-head)1 59.4%40.4%

Similar by tactical fingerprint: Cristina Bucsa, Arantxa Rus, Leylah Fernandez, Magda Linette, Sara Bejlek, Olga Danilovic, Anhelina Kalinina, Brenda Fruhvirtova, Anna Lena Friedsam, Flavia Pennetta. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head