RallyIQ

Game plan

Kirsten Flipkens v Sara Sorribes Tormo

Every number combines what Kirsten Flipkens does well with what Sara Sorribes Tormo allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Kirsten Flipkens wins, best of 3 45%90%: 20%–73% · best of 5: 44%
Serve points won 51.9% / 52.7% Kirsten / Sara · tour 56.4%
Strengths only, no similarity priors 49%serve 52.3% / 52.4%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Kirsten Flipkens's record against Sara Sorribes Tormo's tactical lookalikes and in their charted head-to-heads (head-to-head: −8.9 on serve, −8.5 on return vs expectation (125 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

CareerKirstenSara
Direction choice+0.47 ±0.14
better than 99%
−0.48 ±0.10
better than 0%
Shot selection−1.40 ±0.28
better than 1%
−0.84 ±0.19
better than 5%
Execution−0.56 ±0.51
better than 31%
+2.10 ±0.36
better than 99%
Points left on the table2.87 ±0.26
lower than 19%
3.12 ±0.13
lower than 7%

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.

Kirsten Flipkens serving

Deuce court

1st serveNowKirsten winsv SaraMatchupOptimal
Wide48%56%62%51.4%±7.843% ▼
Body10%56%51%48.9%±11.80% ▼
T42%67%60%59.0%±8.957% ▲

Optimal v Sara Sorribes Tormo: +0.8±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowKirsten winsv SaraMatchupOptimal
Wide61%69%60%63.6%±7.876% ▲
Body12%51%55%49.9%±12.06% ▼
T27%61%57%52.8%±9.918% ▼

Optimal v Sara Sorribes Tormo: +0.5±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.5 per 100 first serves in before the returner adjusts.

Sara Sorribes Tormo serving

Deuce court

1st serveNowSara winsv KirstenMatchupOptimal
Wide44%61%62%57.2%±8.845% ▲
Body41%51%52%45.7%±9.226% ▼
T15%59%71%62.2%±10.229% ▲

Optimal v Kirsten Flipkens: +1.0±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +8.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowSara winsv KirstenMatchupOptimal
Wide24%58%65%56.8%±9.533% ▲
Body52%53%57%53.9%±10.437% ▼
T24%54%65%55.1%±9.730% ▲

Optimal v Kirsten Flipkens: +0.4±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.9 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.

Kirsten Flipkens returning

1st serve to the forehand

ReturnNowTourOwnv SaraValue
FH slice through the middle26%−6.7+1.1+0.9−4.7±2.5
FH through the middle24%+4.2+1.1+1.5+6.8±2.5
FH crosscourt22%+5.3−1.5+3.5+7.3±4.0
FH down the line14%+1.5+0.9+2.4+4.9±4.0
FH slice crosscourt14%−6.6+1.3±0.0−5.4±1.8

Lean FH crosscourt: +5.4±3.3 per 100 returns v the current mix (153 returns charted)

1st serve to the backhand

ReturnNowTourOwnv SaraValue
BH slice through the middle45%−6.2+1.7−0.1−4.7±2.4
BH slice crosscourt37%−4.2+3.1+0.1−1.0±2.9
BH crosscourt7%+7.7+0.3+0.5+8.5±2.8
BH through the middle6%+6.0+1.4+1.6+9.1±2.0
BH slice down the line5%−12.5+0.9−0.4−12.0±2.4

Lean BH slice crosscourt: +1.0±2.1 per 100 returns v the current mix (153 returns charted, inside the 90% margin)

2nd serve to the forehand

ReturnNowTourOwnv SaraValue
FH down the line43%−0.6+0.4+5.1+5.0±4.9
FH through the middle39%−3.2−0.3+3.0−0.6±2.7
FH crosscourt17%+0.5−2.6+0.2−1.9±3.5

Lean FH down the line: +3.3±3.0 per 100 returns v the current mix (46 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv SaraValue
BH slice crosscourt48%−7.5−0.9±0.0−8.4±1.9
BH slice through the middle23%−11.7−0.5±0.0−12.2±1.4
FH inside-out17%+1.4+1.4+5.1+7.8±3.6
FH through the middle12%−2.7−0.4+3.0−0.2±2.0

Lean BH slice crosscourt: −2.9±1.3 per 100 returns v the current mix (52 returns charted, inside the 90% margin)

Sara Sorribes Tormo returning

1st serve to the forehand

ReturnNowTourOwnv KirstenValue
FH through the middle55%+4.2+3.8+1.6+9.6±2.7
FH down the line19%+1.5+2.0+3.6+7.2±4.6
FH crosscourt14%+5.3+3.1+4.6+13.0±4.3
FH slice through the middle8%−6.7+0.1+0.8−5.8±2.5
FH slice crosscourt4%−6.6+0.1+0.4−6.2±2.3

Lean FH crosscourt: +5.4±4.1 per 100 returns v the current mix (518 returns charted)

1st serve to the backhand

ReturnNowTourOwnv KirstenValue
BH through the middle49%+6.0+2.4+0.5+9.0±2.5
BH crosscourt22%+7.7+4.0+2.4+14.1±3.5
BH down the line12%+2.2+3.2+1.1+6.5±4.4
BH slice through the middle8%−6.2+1.9−3.0−7.3±2.5
BH slice crosscourt3%−4.2−0.8+1.0−3.9±2.5

Lean BH crosscourt: +6.4±3.1 per 100 returns v the current mix (530 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv KirstenValue
FH through the middle50%−3.2+1.6+1.4−0.2±3.1
FH crosscourt27%+0.5±0.0+1.1+1.6±4.2
FH down the line23%−0.6+1.9+3.1+4.4±5.0

Lean FH down the line: +3.0±4.3 per 100 returns v the current mix (113 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv KirstenValue
FH inside-out34%+1.4+0.7+3.1+5.1±4.1
FH through the middle31%−2.7+2.4+1.4+1.1±2.6
BH through the middle18%−2.6+1.7+0.8−0.1±2.8
BH crosscourt8%+1.5−0.1+0.8+2.2±3.5
BH down the line3%−0.5−1.9+0.8−1.6±4.5

Lean FH inside-out: +3.2±2.9 per 100 returns v the current mix (261 returns charted)

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.

Kirsten Flipkens

Favour

ShotEdgeOwnTheirs
FH to their backhand · return+7.7±5.4+1.3+6.4
FH to the middle · return+2.7±3.2−1.1+3.8
FH to their forehand · serve +1+1.1±4.9+0.7+0.3
FH to their backhand · serve +1+0.9±4.8−1.8+2.8
BH slice to their forehand · rally−0.8±5.2+4.2−5.1
FH to their forehand · return−1.2±5.6−3.5+2.4

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return +1−5.8±4.8−6.6+0.8
FH to the middle · rally−3.6±3.1−3.5−0.1
FH to their forehand · rally−2.3±3.4−0.3−2.0
BH slice to the middle · rally−2.2±2.9+1.8−3.9
BH slice to their backhand · rally−1.5±3.1+2.0−3.5

Sara Sorribes Tormo

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+12.7±6.2+5.5+7.2
FH to their backhand · return+8.5±5.4+2.4+6.1
BH to their backhand · return+8.0±4.7+5.6+2.3
FH to the middle · rally+7.1±3.0+4.5+2.6
FH to the middle · return+6.6±3.2+5.0+1.7
BH to their backhand · serve +1+4.9±5.4+5.6−0.7

Avoid

ShotEdgeOwnTheirs
BH to their backhand · rally+0.1±3.5+3.2−3.1
FH to their backhand · serve +1+0.1±4.8+2.5−2.3
BH slice to their backhand · rally+0.3±3.2+1.5−1.2
BH to their backhand · return +1+1.1±5.3+0.6+0.5
FH to their forehand · serve +1+1.2±5.6+2.9−1.7

Against Sara Sorribes Tormo-like opponents

Kirsten Flipkens vMatchesServe pts wonReturn pts won
All charted opponents–54.3%42.5%
Sara Sorribes Tormo (charted head-to-head)1 43.5%39.3%

Similar by tactical fingerprint: Tamara Zidansek, Marie Bouzkova, Viktorija Golubic, Daria Kasatkina, Katie Volynets, Sara Errani, Alize Cornet, Madison Brengle, Saisai Zheng, Jennifer Capriati. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head