RallyIQ

Game plan

Conchita Martinez v Arantxa Sanchez Vicario

Every number combines what Conchita Martinez does well with what Arantxa Sanchez Vicario allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Conchita Martinez wins, best of 3 58%90%: 19%–90% · best of 5: 60%
Serve points won 57.3% / 55.7% Conchita / Arantxa · tour 58.1%
Strengths only, no similarity priors 61%serve 57.4% / 55.4%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Conchita Martinez's record against Arantxa Sanchez Vicario's tactical lookalikes and in their charted head-to-heads (lookalikes: −2.7 on serve, −9.1 on return vs expectation (126 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

CareerConchitaArantxa
Direction choice+0.23 ±0.15
better than 88%
−0.06 ±0.14
better than 44%
Shot selection−0.92 ±0.32
better than 4%
−0.58 ±0.24
better than 9%
Execution+1.03 ±0.87
better than 93%
+0.06 ±0.46
better than 64%
Points left on the table2.70 ±0.22
lower than 34%
2.76 ±0.20
lower than 27%

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.

Conchita Martinez serving

Deuce court

1st serveNowConchita winsv ArantxaMatchupOptimal
Wide46%58%68%59.7%±8.346%
Body20%52%57%51.4%±11.45% ▼
T34%63%66%61.3%±10.149% ▲

Optimal v Arantxa Sanchez Vicario: +1.0±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowConchita winsv ArantxaMatchupOptimal
Wide55%55%68%57.1%±7.970% ▲
Body14%59%64%66.8%±11.414%
T31%57%65%57.6%±10.716% ▼

Optimal v Arantxa Sanchez Vicario: +0.2±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving body every time would read +8.3 per 100 first serves in before the returner adjusts.

Arantxa Sanchez Vicario serving

Deuce court

1st serveNowArantxa winsv ConchitaMatchupOptimal
Wide33%53%72%60.4%±9.648% ▲
Body27%54%59%55.8%±10.817% ▼
T40%56%64%51.9%±9.935% ▼

Optimal v Conchita Martinez: +0.3±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowArantxa winsv ConchitaMatchupOptimal
Wide61%53%66%54.2%±8.360%
Body17%51%50%45.3%±12.02% ▼
T22%61%67%63.4%±11.938% ▲

Optimal v Conchita Martinez: +0.6±1.3 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +8.6 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.

Conchita Martinez returning

1st serve to the forehand

ReturnNowTourOwnv ArantxaValue
FH through the middle49%+4.2−0.4−3.2+0.6±2.9
FH down the line34%+1.5+2.0−0.1+3.4±4.4
FH crosscourt17%+5.3+2.9+3.3+11.5±3.9

Lean FH crosscourt: +8.1±3.8 per 100 returns v the current mix (106 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ArantxaValue
BH slice through the middle36%−6.2−1.1+3.0−4.3±2.3
BH slice crosscourt28%−4.2+3.8+7.0+6.6±2.7
BH slice down the line12%−12.5+3.1+3.5−5.9±3.4
BH through the middle10%+6.0+0.5−2.0+4.5±2.7
BH crosscourt9%+7.7+0.3−0.8+7.2±3.4

Lean BH crosscourt: +6.2±3.3 per 100 returns v the current mix (165 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ArantxaValue
FH down the line47%−0.6+3.3+1.7+4.5±4.8
FH crosscourt29%+0.5−0.2+3.5+3.8±3.9
FH through the middle24%−3.2−0.1−2.0−5.3±2.8

Lean FH down the line: +2.6±2.8 per 100 returns v the current mix (49 returns charted, inside the 90% margin)

Arantxa Sanchez Vicario returning

1st serve to the forehand

ReturnNowTourOwnv ConchitaValue
FH through the middle38%+4.2−3.2±0.0+1.0±3.0
FH slice through the middle22%−6.7+3.2+0.5−3.1±2.2
FH crosscourt16%+5.3−2.6+1.8+4.5±4.3
FH down the line10%+1.5+4.2+1.3+7.1±4.7
FH slice crosscourt9%−6.6+0.8±0.0−5.8±2.0

Lean FH down the line: +6.9±4.5 per 100 returns v the current mix (388 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ConchitaValue
BH through the middle34%+6.0−2.9−1.8+1.4±2.8
BH crosscourt31%+7.7−3.9+1.3+5.1±3.4
BH slice through the middle17%−6.2+3.0+2.8−0.4±2.5
BH slice crosscourt12%−4.2−0.2+4.5+0.2±3.0
BH down the line7%+2.2−1.9+2.6+2.9±3.9

Lean BH crosscourt: +3.0±2.6 per 100 returns v the current mix (478 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ConchitaValue
FH through the middle48%−3.2+0.2−1.4−4.4±2.9
FH down the line35%−0.6−1.3+1.6−0.3±4.9
FH crosscourt17%+0.5−1.4+0.9±0.0±4.1

Lean FH crosscourt: +2.2±4.1 per 100 returns v the current mix (164 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv ConchitaValue
BH crosscourt51%+1.5+0.6−0.1+2.0±3.5
BH through the middle31%−2.6±0.0−0.9−3.5±2.7
BH down the line14%−0.5±0.0−2.0−2.5±4.8
FH inside-in4%+0.7−0.7+0.9+0.9±3.7

Lean BH crosscourt: +2.4±2.1 per 100 returns v the current mix (173 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 grass. Each player's grass record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Conchita Martinez

Favour

ShotEdgeOwnTheirs
BH slice to their backhand · return+9.6±3.6+4.6+5.0
BH slice to their forehand · rally+7.2±4.5+4.3+2.9
BH slice to their backhand · return +1+5.8±3.5+1.0+4.8
BH slice to their backhand · rally+5.5±3.6+0.9+4.6
FH to their backhand · return+4.3±6.1+5.7−1.5
BH to their forehand · rally+3.8±5.6+3.8−0.1

Avoid

ShotEdgeOwnTheirs
FH to the middle · return−13.5±4.3−5.1−8.4
FH to their forehand · serve +1−5.2±5.6+1.2−6.4
FH to their forehand · rally−4.1±4.8−0.7−3.3
BH to the middle · rally−4.1±3.0−2.9−1.2
BH slice to the middle · return−1.4±3.3−2.7+1.3

Arantxa Sanchez Vicario

Favour

ShotEdgeOwnTheirs
BH slice to their backhand · return +1+8.9±4.4+3.9+5.0
BH slice to their forehand · rally+8.2±4.7+4.1+4.1
BH slice to their backhand · rally+7.7±3.9+3.8+3.9
BH slice to the middle · return+5.9±3.6+4.9+1.0
FH to their forehand · rally+5.2±4.8+4.6+0.6
FH to the middle · rally+3.9±3.0+2.1+1.7

Avoid

ShotEdgeOwnTheirs
FH to their forehand · serve +1−8.9±4.8−5.5−3.4
BH to the middle · return−4.5±3.3−2.6−1.8
FH to the middle · return−4.3±4.2−3.7−0.6
BH to their backhand · rally−4.0±3.6−1.3−2.7
FH to their backhand · serve +1−3.7±6.0−2.7−1.0

Against Arantxa Sanchez Vicario-like opponents

Conchita Martinez vMatchesServe pts wonReturn pts won
All charted opponents–53.1%41.7%
Players most similar to Arantxa Sanchez Vicario1 47.9%36.4%

Similar by tactical fingerprint: Maja Chwalinska, Angelique Kerber, Brenda Fruhvirtova, Anna Lena Friedsam, Agnieszka Radwanska, Flavia Pennetta, Martina Hingis, Gabriela Sabatini, Chris Evert. When two players have rarely met, their records against these lookalikes fill the gap.