RallyIQ

Game plan

Anna Kalinskaya v Leylah Fernandez

Every number combines what Anna Kalinskaya does well with what Leylah Fernandez allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Anna Kalinskaya wins, best of 3 41%90%: 21%–64% · best of 5: 39%
Serve points won 59.0% / 60.7% Anna / Leylah · tour 56.7%
Strengths only, no similarity priors 51%serve 59.8% / 59.6%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Anna Kalinskaya's record against Leylah Fernandez's tactical lookalikes and in their charted head-to-heads (lookalikes: −4.2 on serve, −5.9 on return vs expectation (445 points); head-to-head: −10.6 on serve, −11.1 on return vs expectation (94 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

CareerAnnaLeylah
Direction choice+0.14 ±0.08
better than 79%
−0.17 ±0.06
better than 23%
Shot selection−0.13 ±0.12
better than 33%
+0.22 ±0.11
better than 69%
Execution+0.51 ±0.40
better than 79%
+0.34 ±0.42
better than 74%
Points left on the table2.31 ±0.13
lower than 85%
3.33 ±0.10
lower than 3%

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: Anna Kalinskaya +0.70, Leylah Fernandez +0.66. 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.

Anna Kalinskaya serving

Deuce court

1st serveNowAnna winsv LeylahMatchupOptimal
Wide49%68%67%69.4%±4.664% ▲
Body23%56%58%57.1%±6.77% ▼
T28%63%69%64.0%±6.229%

Optimal v Leylah Fernandez: +0.8±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.3 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAnna winsv LeylahMatchupOptimal
Wide47%63%69%66.6%±5.262% ▲
Body18%54%53%50.0%±8.02% ▼
T36%62%66%63.4%±5.536%

Optimal v Leylah Fernandez: +1.2±0.9 per 100 first serves (faults included) over the current mix. Serving wide every time would read +4.0 per 100 first serves in before the returner adjusts.

Leylah Fernandez serving

Deuce court

1st serveNowLeylah winsv AnnaMatchupOptimal
Wide35%69%67%70.5%±5.235%
Body19%57%54%53.3%±7.24% ▼
T45%64%70%66.4%±5.661% ▲

Optimal v Anna Kalinskaya: +1.0±0.9 per 100 first serves (faults included) over the current mix. Serving wide every time would read +5.2 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowLeylah winsv AnnaMatchupOptimal
Wide54%69%66%69.3%±4.869% ▲
Body16%55%53%51.5%±8.51% ▼
T30%71%67%73.1%±5.730%

Optimal v Anna Kalinskaya: +1.0±0.9 per 100 first serves (faults included) over the current mix. Serving T every time would read +5.5 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.

Anna Kalinskaya returning

1st serve to the forehand

ReturnNowTourOwnv LeylahValue
FH through the middle39%+4.2+1.0±0.0+5.2±2.2
FH crosscourt19%+5.3+3.7+0.9+9.9±3.9
FH slice through the middle16%−6.7−1.0−0.5−8.2±2.5
FH slice crosscourt13%−6.6+0.5+1.2−4.9±2.8
FH down the line10%+1.5−0.6−1.5−0.5±4.4

Lean FH crosscourt: +8.3±3.4 per 100 returns v the current mix (634 returns charted)

1st serve to the backhand

ReturnNowTourOwnv LeylahValue
BH through the middle45%+6.0−0.4+1.2+6.8±2.0
BH crosscourt32%+7.7−1.1+2.6+9.3±2.9
BH down the line13%+2.2−1.2−3.0−2.0±4.3
BH slice crosscourt5%−4.2−1.6−1.9−7.6±3.0
BH slice through the middle4%−6.2−0.8−1.7−8.8±2.4

Lean BH crosscourt: +4.4±2.2 per 100 returns v the current mix (547 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv LeylahValue
FH through the middle44%−3.2+0.3+0.2−2.7±2.8
FH crosscourt36%+0.5+2.0−0.3+2.2±4.4
FH down the line14%−0.6−2.6−4.7−7.8±4.9
FH slice through the middle6%−15.2+0.2+0.3−14.7±1.9

Lean FH crosscourt: +4.6±3.2 per 100 returns v the current mix (152 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv LeylahValue
BH crosscourt47%+1.5−0.3−2.1−0.9±3.2
BH through the middle37%−2.6+0.2+1.7−0.7±2.3
BH down the line13%−0.5−3.0−2.0−5.6±5.1
FH inside-in2%+0.7−0.6−0.3−0.1±4.0

Lean BH through the middle: +0.7±2.2 per 100 returns v the current mix (321 returns charted, inside the 90% margin)

Leylah Fernandez returning

1st serve to the forehand

ReturnNowTourOwnv AnnaValue
FH through the middle48%+4.2+2.6+0.1+6.9±2.1
FH crosscourt29%+5.3+1.3−1.5+5.1±3.6
FH down the line20%+1.5−3.0−1.5−3.0±4.1
FH slice through the middle2%−6.7−0.4+0.6−6.5±2.3
FH slice down the line1%−10.5−1.0+2.3−9.2±2.4

Lean FH through the middle: +2.9±1.7 per 100 returns v the current mix (626 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AnnaValue
BH through the middle45%+6.0−1.6−0.3+4.2±1.8
BH crosscourt24%+7.7+0.7+1.1+9.5±3.1
BH down the line11%+2.2−1.0+2.2+3.4±4.1
BH slice through the middle10%−6.2−0.3+1.3−5.2±2.5
BH slice crosscourt6%−4.2−1.9−0.6−6.6±3.0

Lean BH crosscourt: +6.7±2.6 per 100 returns v the current mix (845 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AnnaValue
FH crosscourt44%+0.5±0.0−5.5−5.0±4.4
FH through the middle39%−3.2+3.1−1.0−1.1±3.0
FH down the line17%−0.6+0.6−5.6−5.6±5.2

Lean FH through the middle: +2.5±2.8 per 100 returns v the current mix (186 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv AnnaValue
BH through the middle45%−2.6+1.0−0.2−1.8±2.1
BH crosscourt34%+1.5±0.0−1.4+0.1±3.3
BH down the line15%−0.5+1.5+0.2+1.1±4.8
FH through the middle3%−2.7+0.1−1.0−3.6±2.3
BH slice through the middle1%−11.7−0.9±0.0−12.6±1.1

Lean BH down the line: +2.1±4.4 per 100 returns v the current mix (406 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.

Anna Kalinskaya

Favour

ShotEdgeOwnTheirs
FH to the middle · rally+5.6±2.1+2.3+3.3
FH to their backhand · rally+5.3±2.8+2.2+3.1
BH to their forehand · return +1+4.3±5.4+2.6+1.8
BH to their forehand · serve +1+3.6±5.1+1.1+2.4
FH to their backhand · return +1+2.7±4.5+3.0−0.3
FH to their forehand · serve +1+2.6±3.5+0.9+1.7

Avoid

ShotEdgeOwnTheirs
BH slice to their backhand · rally−13.7±4.1−9.4−4.3
FH slice to the middle · rally−4.9±3.9−2.0−2.8
BH to their backhand · return +1−3.9±3.7−1.5−2.5
BH to their backhand · serve +1−3.7±3.6−1.3−2.4
BH to their backhand · return−2.7±3.2−0.1−2.7

Leylah Fernandez

Favour

ShotEdgeOwnTheirs
BH to their forehand · return +1+5.5±5.5+3.9+1.6
FH to their backhand · serve +1+5.3±3.5+2.9+2.4
FH to the middle · return+5.0±2.1+3.1+1.9
BH to their forehand · serve +1+4.6±5.2+3.3+1.2
FH to their forehand · rally+3.5±2.5+3.9−0.4
BH to their forehand · return+3.0±4.1+2.3+0.8

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return−8.5±4.6−4.7−3.9
BH to their backhand · return +1−5.9±3.8−7.1+1.2
BH slice to their backhand · rally−4.5±3.6−6.5+2.0
BH slice to the middle · rally−3.4±2.8−2.8−0.6
FH to their forehand · serve +1−1.5±3.7−0.3−1.1

Against Leylah Fernandez-like opponents

Anna Kalinskaya vMatchesServe pts wonReturn pts won
All charted opponents–56.9%43.3%
Players most similar to Leylah Fernandez3 54.4%37.4%
Leylah Fernandez (charted head-to-head)1 47.4%32.1%

Similar by tactical fingerprint: Cristina Bucsa, Alexandra Eala, Diana Shnaider, Karolina Muchova, Marta Kostyuk, Sorana Cirstea, Olga Danilovic, Kaja Juvan, Victoria Azarenka, Irina Camelia Begu. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head