RallyIQ

Game plan

Gustavo Kuerten v Marat Safin

Every number combines what Gustavo Kuerten does well with what Marat Safin allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Gustavo Kuerten wins, best of 3 29%90%: 19%–40% · best of 5: 24%
Serve points won 65.9% / 70.6% Gustavo / Marat · tour 63.8%
Strengths only, no similarity priors 27%serve 65.3% / 70.4%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Gustavo Kuerten's record against Marat Safin's tactical lookalikes and in their charted head-to-heads (lookalikes: −7.2 on serve, +3.3 on return vs expectation (254 points); head-to-head: +5.1 on serve, −2.2 on return vs expectation (902 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

CareerGustavoMarat
Direction choice+0.16 ±0.05
better than 89%
+0.12 ±0.04
better than 84%
Shot selection−0.12 ±0.12
better than 37%
−0.07 ±0.10
better than 44%
Execution+0.04 ±0.26
better than 71%
−0.19 ±0.22
better than 58%
Points left on the table2.48 ±0.10
lower than 64%
2.39 ±0.07
lower than 74%

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.

Gustavo Kuerten serving

Deuce court

1st serveNowGustavo winsv MaratMatchupOptimal
Wide42%78%72%76.9%±3.248% ▲
Body5%62%64%62.6%±8.40% ▼
T54%80%75%80.0%±2.952% ▼

Optimal v Marat Safin: +0.2±0.3 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowGustavo winsv MaratMatchupOptimal
Wide64%75%71%73.2%±3.271% ▲
Body4%63%65%65.3%±8.70% ▼
T32%77%73%77.6%±3.729% ▼

Optimal v Marat Safin: +0.1±0.3 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.3 per 100 first serves in before the returner adjusts.

Marat Safin serving

Deuce court

1st serveNowMarat winsv GustavoMatchupOptimal
Wide36%76%74%77.4%±3.049% ▲
Body7%67%61%64.5%±7.60% ▼
T57%77%73%75.4%±3.351% ▼

Optimal v Gustavo Kuerten: +0.6±0.5 per 100 first serves (faults included) over the current mix. Serving wide every time would read +2.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMarat winsv GustavoMatchupOptimal
Wide53%74%71%72.7%±3.240% ▼
Body6%73%70%78.6%±6.819% ▲
T41%75%73%75.9%±3.641%

Optimal v Gustavo Kuerten: +0.1±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving body every time would read +4.2 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.

Gustavo Kuerten returning

1st serve to the forehand

ReturnNowTourOwnv MaratValue
FH through the middle43%+4.3−0.9−1.6+1.7±1.7
FH down the line26%+1.7−2.1−4.0−4.5±3.2
FH crosscourt19%+5.5−3.7−3.1−1.2±3.3
FH slice through the middle6%−4.2+0.6+0.6−3.0±2.1
FH slice down the line4%−4.3+1.3+0.5−2.5±3.2

Lean FH through the middle: +2.6±1.4 per 100 returns v the current mix (1134 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MaratValue
BH through the middle28%+6.4−0.6−1.7+4.1±1.7
BH crosscourt23%+8.8−2.6−3.5+2.7±2.5
BH slice through the middle22%−4.2−1.4+1.0−4.5±1.6
BH slice crosscourt10%+0.5−3.7±0.0−3.1±2.5
BH down the line9%+4.2−1.5−3.0−0.4±4.1

Lean BH through the middle: +4.4±1.5 per 100 returns v the current mix (1292 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MaratValue
FH through the middle37%−3.5+0.4+0.1−3.0±2.2
FH crosscourt32%−0.2−1.2+0.4−1.1±3.6
FH down the line29%−1.8−0.7−0.6−3.0±3.9
BH through the middle2%+0.1+0.4+0.3+0.8±1.2

Lean FH crosscourt: +1.3±2.8 per 100 returns v the current mix (377 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MaratValue
BH through the middle41%−2.9+0.9+0.3−1.7±1.3
BH crosscourt37%+1.0+0.9−0.5+1.4±1.8
BH down the line13%−0.2−1.4−2.4−4.0±4.1
FH through the middle4%−2.9±0.0+0.1−2.8±2.0
FH inside-out2%+1.0−1.5−0.6−1.1±3.1

Lean BH crosscourt: +2.3±1.4 per 100 returns v the current mix (1272 returns charted)

Marat Safin returning

1st serve to the forehand

ReturnNowTourOwnv GustavoValue
FH through the middle45%+4.3−1.5−3.1−0.4±1.8
FH down the line22%+1.7+1.4−4.1−1.0±3.4
FH crosscourt22%+5.5−2.1−3.0+0.4±3.3
FH slice through the middle5%−4.2+0.7+1.1−2.4±2.3
FH slice down the line2%−4.3−0.1−0.6−4.9±3.2
BH through the middle1%+6.6−0.1−3.3+3.1±2.2

Lean BH through the middle: +3.7±2.6 per 100 returns v the current mix (1806 returns charted)

1st serve to the backhand

ReturnNowTourOwnv GustavoValue
BH crosscourt34%+8.8−0.6−2.5+5.7±2.3
BH through the middle34%+6.4−0.5−3.3+2.6±1.7
BH slice through the middle11%−4.2−3.7+1.3−6.6±1.8
BH down the line11%+4.2+0.1−1.8+2.5±4.0
BH slice crosscourt6%+0.5−5.2−1.0−5.6±2.6

Lean BH crosscourt: +4.1±1.7 per 100 returns v the current mix (1839 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv GustavoValue
FH through the middle47%−3.5+1.6−0.2−2.0±2.0
FH crosscourt27%−0.2±0.0+0.2±0.0±3.6
FH down the line23%−1.8−0.8+0.2−2.4±3.9
BH inside-in2%+2.5−2.6−0.3−0.4±2.5
BH through the middle2%+0.1+1.0−0.6+0.6±1.4

Lean FH crosscourt: +1.5±2.9 per 100 returns v the current mix (678 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv GustavoValue
BH crosscourt49%+1.0−0.4−0.3+0.3±1.7
BH through the middle37%−2.9−0.6−0.6−4.1±1.4
BH down the line12%−0.2+1.7+1.0+2.5±4.0
BH slice through the middle1%−11.3−0.4+1.5−10.2±2.1
BH slice crosscourt0%−4.0+0.4+3.6+0.1±2.0

Lean BH down the line: +3.7±3.7 per 100 returns v the current mix (1511 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.

Gustavo Kuerten

Favour

ShotEdgeOwnTheirs
FH volley to their backhand · rally+7.6±8.1+6.2+1.4
BH drop shot to their forehand · rally+5.4±7.5−0.4+5.9
FH volley to their forehand · rally+5.0±7.4±0.0+5.0
BH volley to their forehand · rally+3.9±8.0−3.6+7.4
Smash to their backhand · rally+3.3±6.7+5.1−1.8
BH slice to the middle · rally+3.1±2.6+0.7+2.4

Avoid

ShotEdgeOwnTheirs
BH slice to their forehand · return−9.2±4.5−4.9−4.3
BH to their forehand · return−7.2±4.2−4.0−3.2
FH to their backhand · return +1−6.6±3.8−3.9−2.7
FH to their forehand · return−5.6±3.9−4.4−1.2
FH to their backhand · return−4.8±3.4−1.6−3.2

Marat Safin

Favour

ShotEdgeOwnTheirs
FH volley to their backhand · rally+5.8±7.6±0.0+5.8
FH slice to the middle · return+2.0±3.1−0.2+2.1
BH to their forehand · serve +1+1.9±5.1+1.0+0.9
BH volley to their backhand · rally+1.1±7.5+1.5−0.4
FH to the middle · serve +1+0.8±2.7−0.2+1.0
BH to their forehand · return+0.3±4.2±0.0+0.3

Avoid

ShotEdgeOwnTheirs
BH slice to their forehand · return +1−9.0±5.1−3.9−5.1
FH slice to their backhand · rally−8.1±5.3−4.0−4.1
BH slice to their backhand · rally−7.5±2.3−4.2−3.3
BH slice to their backhand · return +1−6.6±3.2−5.3−1.3
BH volley to their forehand · rally−6.6±7.1−7.6+1.0

Against Marat Safin-like opponents

Gustavo Kuerten vMatchesServe pts wonReturn pts won
All charted opponents–65.7%36.6%
Players most similar to Marat Safin1 55.6%39.7%
Marat Safin (charted head-to-head)4 69.1%31.3%

Similar by tactical fingerprint: Sebastian Korda, Jack Draper, Borna Coric, David Goffin, Viktor Troicki, Janko Tipsarevic, Marcos Baghdatis, Nicolas Almagro, David Nalbandian. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head