RallyIQ

Game plan

Caty Mcnally v Elena Rybakina

Every number combines what Caty Mcnally does well with what Elena Rybakina allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Caty Mcnally wins, best of 3 4%90%: 1%–15% · best of 5: 1%
Serve points won 51.1% / 64.9% Caty / Elena · tour 56.3%
Strengths only, no similarity priors 4%serve 51.2% / 64.8%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Caty Mcnally's record against Elena Rybakina's tactical lookalikes and in their charted head-to-heads (head-to-head: −2.2 on serve, −4.3 on return vs expectation (104 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

CareerCatyElena
Direction choice−0.32 ±0.11
better than 5%
+0.15 ±0.03
better than 80%
Shot selection+0.05 ±0.33
better than 50%
+0.33 ±0.06
better than 81%
Execution−0.93 ±0.98
better than 20%
+0.40 ±0.26
better than 75%
Points left on the table3.33 ±0.16
lower than 2%
2.42 ±0.05
lower than 73%

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.

Caty Mcnally serving

Deuce court

1st serveNowCaty winsv ElenaMatchupOptimal
Wide43%63%65%61.9%±6.459% ▲
Body19%60%57%59.4%±8.718%
T38%62%67%60.9%±7.623% ▼

Optimal v Elena Rybakina: +0.5±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +0.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCaty winsv ElenaMatchupOptimal
Wide33%57%68%59.0%±8.447% ▲
Body20%51%58%53.3%±9.14% ▼
T48%58%65%58.8%±6.749% ▲

Optimal v Elena Rybakina: +0.3±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.2 per 100 first serves in before the returner adjusts.

Elena Rybakina serving

Deuce court

1st serveNowElena winsv CatyMatchupOptimal
Wide39%71%66%70.8%±6.555% ▲
Body11%63%52%57.1%±10.00% ▼
T50%78%61%73.0%±6.445% ▼

Optimal v Caty Mcnally: +0.8±0.8 per 100 first serves (faults included) over the current mix. Serving T every time would read +2.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowElena winsv CatyMatchupOptimal
Wide55%78%67%79.2%±5.349% ▼
Body9%61%65%69.8%±10.00% ▼
T36%70%73%77.6%±5.951% ▲

Optimal v Caty Mcnally: +0.7±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.4 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.

Caty Mcnally returning

1st serve to the forehand

ReturnNowTourOwnv ElenaValue
FH slice through the middle27%−6.7+1.1−0.4−6.0±2.2
FH through the middle25%+4.2−1.9−1.3+0.9±2.5
FH crosscourt20%+5.3−3.8−1.6−0.1±3.6
FH down the line14%+1.5+1.0−1.6+1.0±3.9
FH slice crosscourt10%−6.6+1.1+1.6−3.9±2.4

Lean FH down the line: +3.1±3.6 per 100 returns v the current mix (180 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv ElenaValue
BH through the middle52%+6.0−0.2−0.8+5.1±2.2
BH crosscourt21%+7.7−0.8−2.4+4.5±3.0
BH down the line11%+2.2+1.2−2.3+1.0±3.8
BH slice through the middle7%−6.2+0.5−1.5−7.2±2.0
BH slice down the line5%−12.5−1.8−3.0−17.3±3.0

Lean BH through the middle: +3.1±1.3 per 100 returns v the current mix (177 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ElenaValue
FH through the middle54%−3.2−2.0−0.5−5.7±2.5
FH crosscourt22%+0.5+1.9+0.7+3.1±3.4
FH down the line13%−0.6−1.0−0.2−1.7±3.9
FH slice through the middle11%−15.2+0.1−1.9−17.0±2.1

Lean FH through the middle: −1.2±1.5 per 100 returns v the current mix (54 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv ElenaValue
BH through the middle47%−2.6+1.7−0.5−1.3±2.1
BH crosscourt32%+1.5+2.2−0.3+3.3±2.8
FH through the middle9%−2.7+1.0−0.5−2.2±1.7
FH inside-in6%+0.7−0.3+0.7+1.1±3.1
FH inside-out6%+1.4+0.4−0.2+1.6±3.1

Lean BH crosscourt: +2.9±2.1 per 100 returns v the current mix (87 returns charted)

Elena Rybakina returning

1st serve to the forehand

ReturnNowTourOwnv CatyValue
FH through the middle46%+4.2−0.8−0.5+2.8±2.2
FH down the line31%+1.5−0.2+0.5+1.9±3.7
FH crosscourt15%+5.3+0.1+1.3+6.7±3.7
FH slice through the middle5%−6.7−3.4−0.8−10.9±2.4
FH slice crosscourt2%−6.6−0.6+0.1−7.1±2.5

Lean FH crosscourt: +4.7±3.5 per 100 returns v the current mix (2246 returns charted)

1st serve to the backhand

ReturnNowTourOwnv CatyValue
BH through the middle44%+6.0±0.0+0.9+7.0±2.2
BH crosscourt22%+7.7+1.7+3.1+12.5±3.1
BH down the line19%+2.2+0.2+2.9+5.3±4.1
BH slice through the middle8%−6.2−1.3−0.1−7.7±2.3
BH slice crosscourt4%−4.2−1.2+0.4−5.0±2.5

Lean BH crosscourt: +7.0±2.7 per 100 returns v the current mix (1613 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv CatyValue
FH through the middle41%−3.2−1.1+0.9−3.4±2.8
FH crosscourt30%+0.5+2.4−0.6+2.4±4.0
FH down the line28%−0.6−0.8+1.1−0.3±4.9
FH slice through the middle2%−15.2−0.7±0.0−15.9±1.4

Lean FH crosscourt: +3.4±3.3 per 100 returns v the current mix (580 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv CatyValue
BH crosscourt43%+1.5+0.4−0.1+1.8±3.0
BH through the middle40%−2.6±0.0−1.4−4.1±2.4
BH down the line16%−0.5+0.8+1.9+2.3±4.9

Lean BH down the line: +2.8±4.4 per 100 returns v the current mix (849 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.

Caty Mcnally

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+4.5±3.3+2.1+2.4
FH to the middle · serve +1+2.3±2.0+1.3+1.0
BH to the middle · serve +1+1.8±2.0+1.7+0.1
FH to their forehand · rally+1.3±2.5+0.9+0.4
FH to the middle · return +1+1.0±2.2+1.9−0.9
FH to the middle · rally+1.0±1.7+0.9+0.1

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return +1−4.4±3.6−3.6−0.8
FH to the middle · return−3.3±2.2−1.9−1.4
BH to the middle · return−2.2±1.8±0.0−2.2
BH to their forehand · rally−1.9±3.8−2.8+0.9
FH to their backhand · serve +1−0.6±3.2−0.2−0.3

Elena Rybakina

Favour

ShotEdgeOwnTheirs
BH to their forehand · serve +1+5.1±4.0+1.3+3.9
BH to their backhand · return+3.9±2.8+0.8+3.0
FH to their forehand · return+3.0±3.5+2.0+1.0
FH to their forehand · serve +1+2.9±3.1+0.9+2.0
BH to their forehand · return+2.8±3.6−0.8+3.6
BH to the middle · return +1+1.5±2.1−0.6+2.1

Avoid

ShotEdgeOwnTheirs
FH to the middle · rally−2.7±1.9−2.5−0.2
FH to the middle · serve +1−2.3±2.2−2.3+0.1
FH to their forehand · rally−1.9±2.4−0.3−1.6
BH to the middle · rally−1.4±1.8−1.1−0.3
FH to their backhand · serve +1−1.3±3.2+2.3−3.6

Against Elena Rybakina-like opponents

Caty Mcnally vMatchesServe pts wonReturn pts won
All charted opponents–52.4%39.3%
Elena Rybakina (charted head-to-head)1 49.0%30.9%

Similar by tactical fingerprint: Barbora Krejcikova, Anastasia Pavlyuchenkova, Veronika Kudermetova, Danielle Collins, Petra Kvitova, Caroline Garcia, Rebecca Marino, Anett Kontaveit, Johanna Konta, Coco Vandeweghe. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head