RallyIQ

Game plan

Brenda Fruhvirtova v Sara Bejlek

Every number combines what Brenda Fruhvirtova does well with what Sara Bejlek allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Brenda Fruhvirtova wins, best of 3 71%90%: 28%–95% · best of 5: 76%
Serve points won 52.1% / 48.0% Brenda / Sara · tour 55.0%
Strengths only, no similarity priors 71%serve 52.1% / 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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Brenda Fruhvirtova's record against Sara Bejlek's tactical lookalikes and in their charted head-to-heads. 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

CareerBrendaSara
Direction choice−0.13 ±0.13
better than 30%
−0.14 ±0.15
better than 27%
Shot selection−0.34 ±0.23
better than 19%
+0.24 ±0.28
better than 72%
Execution+0.86 ±1.03
better than 88%
−0.48 ±0.87
better than 34%

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.

Brenda Fruhvirtova serving

Deuce court

1st serveNowBrenda winsv SaraMatchupOptimal
Wide40%61%67%61.6%±10.255% ▲
Body21%55%53%50.2%±13.66% ▼
T39%67%74%73.0%±11.239%

Optimal v Sara Bejlek: +0.9±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +9.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowBrenda winsv SaraMatchupOptimal
Wide63%60%68%62.8%±11.363%
Body18%57%57%57.2%±14.73% ▼
T18%59%65%59.0%±13.534% ▲

Optimal v Sara Bejlek: +0.4±1.3 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.7 per 100 first serves in before the returner adjusts.

Sara Bejlek serving

Deuce court

1st serveNowSara winsv BrendaMatchupOptimal
Wide29%59%64%56.9%±12.335% ▲
Body36%51%58%51.8%±13.021% ▼
T35%56%73%61.6%±13.544% ▲

Optimal v Brenda Fruhvirtova: +0.8±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowSara winsv BrendaMatchupOptimal
Wide49%65%69%69.2%±11.164% ▲
Body32%57%58%58.6%±13.517% ▼
T19%53%67%55.9%±14.419%

Optimal v Brenda Fruhvirtova: +0.7±1.3 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +5.9 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.

Brenda Fruhvirtova returning

1st serve to the forehand

ReturnNowTourOwnv SaraValue
FH through the middle43%+4.2+2.8+1.1+8.1±3.2
FH down the line17%+1.5+0.2±0.0+1.7±4.4
FH slice through the middle16%−6.7±0.0±0.0−6.7±1.7
FH crosscourt14%+5.3±0.0+2.9+8.1±4.2
FH slice down the line6%−10.5+1.2±0.0−9.3±1.8

Lean FH crosscourt: +5.2±3.9 per 100 returns v the current mix (164 returns charted)

1st serve to the backhand

ReturnNowTourOwnv SaraValue
BH through the middle46%+6.0+0.8+1.8+8.6±2.9
BH crosscourt34%+7.7+0.2+3.8+11.8±3.5
BH down the line20%+2.2−3.7+2.1+0.6±4.2

Lean BH crosscourt: +3.7±2.8 per 100 returns v the current mix (65 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv SaraValue
BH through the middle45%−2.6+0.9−0.5−2.2±2.6
BH crosscourt43%+1.5+0.7+2.8+5.0±3.3
BH down the line13%−0.5−0.1−0.1−0.7±3.6

Lean BH crosscourt: +4.0±2.3 per 100 returns v the current mix (40 returns charted)

Sara Bejlek returning

1st serve to the forehand

ReturnNowTourOwnv BrendaValue
FH through the middle35%+4.2−0.9+0.3+3.5±3.0
FH crosscourt29%+5.3+1.3+0.4+7.0±4.0
FH down the line28%+1.5+1.6+0.7+3.8±4.5
FH slice through the middle9%−6.7−0.1±0.0−6.8±1.1

Lean FH crosscourt: +3.3±3.2 per 100 returns v the current mix (69 returns charted)

1st serve to the backhand

ReturnNowTourOwnv BrendaValue
BH through the middle50%+6.0+0.1+1.9+8.0±2.8
BH crosscourt28%+7.7+0.6+1.5+9.8±3.7
BH down the line22%+2.2−0.3+3.8+5.7±4.6

Lean BH crosscourt: +1.8±3.1 per 100 returns v the current mix (134 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv BrendaValue
BH through the middle35%−2.6−0.3+0.6−2.3±2.7
BH crosscourt31%+1.5−0.3−1.4−0.3±3.1
FH through the middle19%−2.7+0.5+1.5−0.7±2.4
BH down the line15%−0.5−0.5+2.1+1.2±4.4

Lean BH crosscourt: +0.6±2.5 per 100 returns v the current mix (62 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 clay. Each player's clay record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Brenda Fruhvirtova

Favour

ShotEdgeOwnTheirs
FH to the middle · return+6.0±4.1+4.7+1.3
FH to the middle · rally+4.7±3.6+3.2+1.5
BH to their forehand · rally+4.6±6.5+0.7+3.9
FH to their backhand · rally+4.6±4.9+3.3+1.3
FH to their forehand · rally+3.9±4.6+2.2+1.7
BH to the middle · return+3.2±3.8±0.0+3.3

Avoid

ShotEdgeOwnTheirs
FH to their forehand · serve +1−4.8±6.2+2.4−7.3
BH to the middle · rally+1.8±3.4+1.5+0.3
BH to their backhand · rally+3.1±4.3+2.2+0.9
BH to the middle · return+3.2±3.8±0.0+3.3
FH to their forehand · rally+3.9±4.6+2.2+1.7

Sara Bejlek

Favour

ShotEdgeOwnTheirs
BH to the middle · return+4.2±3.7+0.7+3.4
FH to their backhand · rally+3.4±5.0+3.8−0.4
FH to their forehand · rally+2.3±4.7−1.1+3.4
FH to the middle · return+2.3±4.2−0.4+2.7
BH to their backhand · rally+1.6±4.4+0.5+1.1
FH to the middle · rally+1.3±3.6+0.6+0.7

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−1.4±6.0−2.0+0.6
BH to their forehand · rally−0.5±6.4+1.8−2.3
BH to the middle · rally+0.9±3.4−0.4+1.2
FH to the middle · rally+1.3±3.6+0.6+0.7
BH to their backhand · rally+1.6±4.4+0.5+1.1

Against Sara Bejlek-like opponents

Brenda Fruhvirtova vMatchesServe pts wonReturn pts won
All charted opponents–54.9%42.9%

Similar by tactical fingerprint: Diana Shnaider, Alina Korneeva, Marta Kostyuk, Leylah Fernandez, Jil Teichmann, Olga Danilovic, Victoria Jimenez Kasintseva, Beatriz Haddad Maia, Anhelina Kalinina, Martina Trevisan. When two players have rarely met, their records against these lookalikes fill the gap.