RallyIQ

Game plan

Anna Blinkova v Kimberly Birrell

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

Forecast

Anna Blinkova wins, best of 3 83%90%: 60%–95% · best of 5: 89%
Serve points won 62.3% / 54.9% Anna / Kimberly · tour 56.4%
Strengths only, no similarity priors 84%serve 61.9% / 54.3%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Anna Blinkova's record against Kimberly Birrell's tactical lookalikes and in their charted head-to-heads (lookalikes: +9.2 on serve, −16.2 on return vs expectation (116 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

CareerAnnaKimberly
Direction choice+0.06 ±0.09
better than 66%
−0.11 ±0.18
better than 34%
Shot selection+0.20 ±0.13
better than 65%
+0.29 ±0.15
better than 77%
Execution−0.14 ±0.57
better than 55%
−1.63 ±0.97
better than 8%
Points left on the table2.26 ±0.12
lower than 89%
2.49 ±0.27
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.

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 Blinkova serving

Deuce court

1st serveNowAnna winsv KimberlyMatchupOptimal
Wide36%63%74%71.4%±8.437%
Body32%57%60%60.0%±10.817% ▼
T31%65%75%72.5%±9.046% ▲

Optimal v Kimberly Birrell: +0.9±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAnna winsv KimberlyMatchupOptimal
Wide39%62%78%74.4%±8.242% ▲
Body27%57%58%59.2%±11.612% ▼
T33%63%78%76.6%±8.146% ▲

Optimal v Kimberly Birrell: +1.0±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +5.6 per 100 first serves in before the returner adjusts.

Kimberly Birrell serving

Deuce court

1st serveNowKimberly winsv AnnaMatchupOptimal
Wide43%55%71%61.5%±8.659% ▲
Body30%59%56%58.0%±10.615% ▼
T27%67%70%69.0%±9.926%

Optimal v Anna Blinkova: +0.5±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +6.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowKimberly winsv AnnaMatchupOptimal
Wide32%62%67%63.2%±9.832%
Body25%53%60%56.9%±11.810% ▼
T43%60%65%60.5%±9.558% ▲

Optimal v Anna Blinkova: +0.4±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.7 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.

Anna Blinkova returning

1st serve to the forehand

ReturnNowTourOwnv KimberlyValue
FH through the middle46%+4.2+0.4+1.9+6.5±2.8
FH crosscourt31%+5.3−0.2−3.0+2.1±4.3
FH down the line11%+1.5−1.9+3.2+2.8±4.7
FH slice through the middle9%−6.7−1.4+0.5−7.7±2.1
FH slice crosscourt3%−6.6−0.2−0.4−7.2±1.8

Lean FH through the middle: +3.4±2.1 per 100 returns v the current mix (286 returns charted)

1st serve to the backhand

ReturnNowTourOwnv KimberlyValue
BH through the middle41%+6.0−0.5+3.1+8.7±2.8
BH crosscourt38%+7.7+0.9−0.9+7.7±3.6
BH down the line10%+2.2−0.3−2.3−0.4±4.5
BH slice crosscourt5%−4.2−0.8−1.5−6.5±2.1
BH slice through the middle3%−6.2+0.5−0.1−5.8±2.0

Lean BH through the middle: +3.0±2.2 per 100 returns v the current mix (232 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv KimberlyValue
FH crosscourt49%+0.5−0.1+2.5+2.9±4.4
FH through the middle41%−3.2−1.6+1.7−3.1±3.1
FH down the line10%−0.6−1.9+2.2−0.3±4.3

Lean FH crosscourt: +2.8±2.6 per 100 returns v the current mix (81 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv KimberlyValue
BH through the middle43%−2.6−1.0+0.7−2.8±2.8
BH crosscourt41%+1.5−0.9+3.7+4.2±3.6
BH down the line16%−0.5+7.2−2.4+4.3±4.8

Lean BH down the line: +3.0±4.5 per 100 returns v the current mix (164 returns charted, inside the 90% margin)

Kimberly Birrell returning

1st serve to the forehand

ReturnNowTourOwnv AnnaValue
FH through the middle48%+4.2−2.6−1.7−0.1±2.9
FH down the line30%+1.5−4.7−2.0−5.2±4.7
FH crosscourt22%+5.3+0.2+0.1+5.6±4.3

Lean FH crosscourt: +6.0±3.9 per 100 returns v the current mix (151 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AnnaValue
BH through the middle48%+6.0−1.1+0.3+5.3±2.7
BH crosscourt37%+7.7−3.1+0.2+4.8±3.6
BH down the line12%+2.2−3.0−3.6−4.5±4.3
BH slice down the line4%−12.5−0.7−0.3−13.5±2.2

Lean BH through the middle: +2.0±2.0 per 100 returns v the current mix (128 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AnnaValue
FH through the middle43%−3.2−0.8+1.3−2.7±2.9
FH crosscourt34%+0.5−0.6+1.8+1.8±4.2
FH down the line23%−0.6+0.7+3.4+3.5±4.8

Lean FH crosscourt: +1.5±3.2 per 100 returns v the current mix (56 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv AnnaValue
BH through the middle48%−2.6+0.7−0.2−2.0±2.8
BH crosscourt40%+1.5−2.0+0.1−0.3±3.6
BH down the line13%−0.5−0.4+1.1+0.2±4.7

Lean BH crosscourt: +0.7±2.6 per 100 returns v the current mix (86 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 Blinkova

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+7.5±6.1+2.2+5.2
BH to their backhand · serve +1+5.8±4.9+2.1+3.7
BH to the middle · serve +1+5.7±3.5+2.9+2.8
FH to the middle · serve +1+5.6±4.0+3.4+2.2
BH to their forehand · rally+5.3±6.2+5.3±0.0
FH to their backhand · rally+5.3±4.7+2.2+3.2

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return +1−7.9±6.5−0.2−7.7
FH to their forehand · return−2.6±5.9−1.9−0.7
FH to the middle · return +1−0.7±3.9−0.3−0.4
BH to the middle · return +1+0.5±3.7−1.4+1.9
FH to their forehand · rally+0.6±3.3−1.3+1.9

Kimberly Birrell

Favour

ShotEdgeOwnTheirs
FH to the middle · serve +1+3.9±3.8+3.4+0.5
FH to their forehand · rally+3.7±3.3+0.5+3.3
BH to their forehand · serve +1+3.2±7.2−1.6+4.8
BH to their backhand · return +1+2.1±4.8+0.9+1.2
BH to their backhand · rally+1.9±3.2+0.6+1.3
BH to the middle · rally+0.7±2.8−1.0+1.7

Avoid

ShotEdgeOwnTheirs
BH to their forehand · return−13.0±6.5−10.1−2.9
FH to their forehand · return +1−5.0±5.4−6.2+1.2
FH to the middle · return−3.8±3.4−2.6−1.2
FH to their backhand · serve +1−2.9±5.8−3.1+0.2
BH to their backhand · return−2.5±4.6−2.7+0.2

Against Kimberly Birrell-like opponents

Anna Blinkova vMatchesServe pts wonReturn pts won
All charted opponents–53.7%41.1%
Players most similar to Kimberly Birrell1 61.8%26.2%

Similar by tactical fingerprint: Iva Jovic, Anastasia Potapova, Eva Lys, Emma Navarro, Shuai Zhang, Emma Raducanu, Varvara Gracheva, Lin Zhu, R. When two players have rarely met, their records against these lookalikes fill the gap.