RallyIQ

Game plan

Timea Bacsinszky v Laura Siegemund

Every number combines what Timea Bacsinszky does well with what Laura Siegemund allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Timea Bacsinszky wins, best of 3 73%90%: 42%–93% · best of 5: 78%
Serve points won 57.5% / 52.8% Timea / Laura · tour 56.3%
Strengths only, no similarity priors 71%serve 57.1% / 52.9%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Timea Bacsinszky's record against Laura Siegemund's tactical lookalikes and in their charted head-to-heads (lookalikes: +9.0 on serve, +3.7 on return vs expectation (112 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

CareerTimeaLaura
Direction choice+0.03 ±0.12
better than 58%
−0.01 ±0.09
better than 52%
Shot selection−0.67 ±0.22
better than 7%
−0.15 ±0.31
better than 32%
Execution+0.64 ±0.58
better than 83%
−1.01 ±0.57
better than 17%
Points left on the table2.57 ±0.18
lower than 56%
2.66 ±0.08
lower than 41%

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.

Timea Bacsinszky serving

Deuce court

1st serveNowTimea winsv LauraMatchupOptimal
Wide40%65%66%64.9%±8.255% ▲
Body14%63%61%66.1%±10.60% ▼
T46%60%71%63.9%±8.945%

Optimal v Laura Siegemund: +0.9±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving body every time would read +1.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowTimea winsv LauraMatchupOptimal
Wide40%61%67%62.2%±8.439%
Body19%55%53%51.8%±11.04% ▼
T42%57%64%56.4%±9.257% ▲

Optimal v Laura Siegemund: +0.9±1.2 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.

Laura Siegemund serving

Deuce court

1st serveNowLaura winsv TimeaMatchupOptimal
Wide38%61%65%60.1%±8.054% ▲
Body38%57%53%52.5%±10.423% ▼
T24%65%65%62.1%±9.423%

Optimal v Timea Bacsinszky: +1.0±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 serveNowLaura winsv TimeaMatchupOptimal
Wide30%57%65%56.5%±10.230%
Body34%53%50%47.0%±10.219% ▼
T36%59%68%63.2%±8.051% ▲

Optimal v Timea Bacsinszky: +0.6±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +7.5 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.

Timea Bacsinszky returning

1st serve to the forehand

ReturnNowTourOwnv LauraValue
FH through the middle34%+4.2+1.3+1.0+6.4±2.7
FH slice through the middle31%−6.7+0.6+0.5−5.6±2.4
FH down the line14%+1.5+1.1+1.1+3.7±4.5
FH crosscourt8%+5.3−2.4+0.6+3.5±3.8
FH slice crosscourt7%−6.6−0.3+0.7−6.2±2.1

Lean FH through the middle: +6.1±2.1 per 100 returns v the current mix (260 returns charted)

1st serve to the backhand

ReturnNowTourOwnv LauraValue
BH through the middle61%+6.0−0.6−0.1+5.3±2.5
BH crosscourt18%+7.7+0.9−1.0+7.7±3.3
BH down the line16%+2.2+1.0−3.5−0.3±4.5
BH slice through the middle5%−6.2+0.2−0.4−6.4±1.8

Lean BH crosscourt: +3.4±3.2 per 100 returns v the current mix (136 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv LauraValue
FH through the middle42%−3.2−0.2−1.7−5.0±3.0
FH down the line36%−0.6+0.9−3.1−2.8±5.3
FH crosscourt17%+0.5−0.5−1.7−1.7±4.2
BH through the middle5%−1.0+0.3−1.1−1.7±2.0

Lean FH crosscourt: +1.8±4.2 per 100 returns v the current mix (107 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv LauraValue
BH through the middle41%−2.6+0.6−1.1−3.1±2.7
BH crosscourt31%+1.5+1.5−1.5+1.5±3.4
BH down the line29%−0.5−1.7+2.0−0.2±4.8

Lean BH crosscourt: +2.4±2.9 per 100 returns v the current mix (49 returns charted, inside the 90% margin)

Laura Siegemund returning

1st serve to the forehand

ReturnNowTourOwnv TimeaValue
FH through the middle37%+4.2−2.3+1.0+2.9±2.9
FH crosscourt20%+5.3−4.3+2.5+3.5±4.3
FH down the line17%+1.5+1.4+3.4+6.3±4.6
FH slice through the middle13%−6.7−0.8+0.7−6.9±2.3
FH slice crosscourt9%−6.6+0.7±0.0−5.9±2.0

Lean FH down the line: +5.3±4.0 per 100 returns v the current mix (385 returns charted)

1st serve to the backhand

ReturnNowTourOwnv TimeaValue
BH through the middle45%+6.0+1.0+1.2+8.2±2.6
BH crosscourt23%+7.7−2.1+1.8+7.4±3.6
BH slice through the middle12%−6.2−2.8−0.4−9.5±2.2
BH down the line9%+2.2−2.0−0.1+0.1±4.6
BH slice crosscourt5%−4.2−0.2±0.0−4.4±1.9

Lean BH through the middle: +4.7±1.7 per 100 returns v the current mix (311 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv TimeaValue
FH through the middle34%−3.2−1.4+0.4−4.2±3.1
FH crosscourt26%+0.5−1.0−0.2−0.7±4.3
FH slice crosscourt15%−14.9+0.3±0.0−14.6±1.6
FH down the line14%−0.6−0.2+0.4−0.3±4.6
FH slice through the middle10%−15.2−0.9±0.0−16.1±1.3

Lean FH crosscourt: +4.8±3.4 per 100 returns v the current mix (87 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv TimeaValue
BH through the middle40%−2.6−0.5−3.0−6.1±2.8
BH crosscourt36%+1.5−1.2−3.1−2.8±3.7
BH down the line20%−0.5+3.1−1.6+1.0±5.1
FH through the middle4%−2.7+0.4+0.4−1.9±2.2

Lean BH down the line: +4.3±4.4 per 100 returns v the current mix (138 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.

Timea Bacsinszky

Favour

ShotEdgeOwnTheirs
BH to their backhand · return +1+4.6±3.4+1.4+3.2
BH to the middle · return +1+3.4±2.5+1.5+2.0
BH to their forehand · return+2.4±4.5+3.8−1.4
BH to their forehand · serve +1+2.4±4.7+5.7−3.3
FH to the middle · return+1.2±2.3+0.4+0.8
FH to their backhand · rally+0.9±3.2+1.7−0.8

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−9.0±3.9−4.2−4.9
FH to their forehand · serve +1−3.2±3.6−2.1−1.1
BH to their backhand · serve +1−3.0±3.5−0.1−2.9
FH to their forehand · rally−2.4±2.9−0.3−2.1
BH to the middle · serve +1−1.5±2.6−0.1−1.4

Laura Siegemund

Favour

ShotEdgeOwnTheirs
BH to the middle · return+1.6±2.2+1.1+0.5
BH to their forehand · rally+1.4±4.0+3.1−1.7
BH to their backhand · rally+0.8±2.8−0.4+1.2
FH to their backhand · rally−0.4±3.5+0.1−0.5
FH to their backhand · serve +1−0.7±3.9−0.3−0.3
FH to their forehand · serve +1−0.7±3.6−2.2+1.5

Avoid

ShotEdgeOwnTheirs
FH to their forehand · rally−5.6±2.8−3.8−1.8
FH to their forehand · return +1−5.1±3.7−3.1−2.0
FH to the middle · rally−3.5±2.4−1.2−2.3
BH to their forehand · serve +1−3.4±4.6−1.2−2.2
BH to their forehand · return +1−3.2±4.8−0.8−2.5

Against Laura Siegemund-like opponents

Timea Bacsinszky vMatchesServe pts wonReturn pts won
All charted opponents–56.3%44.4%
Players most similar to Laura Siegemund1 66.1%48.2%

Similar by tactical fingerprint: Bianca Andreescu, Camila Osorio, Antonia Ruzic, Aliaksandra Sasnovich, Anastasija Sevastova, Su Wei Hsieh, Kateryna Baindl, Kristina Mladenovic, Sabine Lisicki. When two players have rarely met, their records against these lookalikes fill the gap.