RallyIQ

Game plan

Sebastian Korda v Fabian Marozsan

Every number combines what Sebastian Korda does well with what Fabian Marozsan allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Sebastian Korda wins, best of 3 59%90%: 30%–83% · best of 5: 61%
Serve points won 65.4% / 63.7% Sebastian / Fabian · tour 63.5%
Strengths only, no similarity priors 57%serve 65.4% / 64.0%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Sebastian Korda's record against Fabian Marozsan's tactical lookalikes and in their charted head-to-heads (lookalikes: ±0.0 on serve, +1.0 on return vs expectation (1581 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

CareerSebastianFabian
Direction choice+0.27 ±0.03
better than 97%
+0.17 ±0.08
better than 91%
Shot selection+0.11 ±0.10
better than 66%
+0.04 ±0.26
better than 58%
Execution−0.70 ±0.32
better than 37%
+0.87 ±0.78
better than 93%
Points left on the table2.12 ±0.07
lower than 98%
2.29 ±0.13
lower than 85%

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.

Structural compatibility

Expected edge per 100 rally shots from style alone: Sebastian Korda +0.55, Fabian Marozsan +0.55. Each player's shot mix weighted by their own skill with each shot and by how much the other gives up against it. This is why some rankings gaps don't hold in a given matchup.

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.

Sebastian Korda serving

Deuce court

1st serveNowSebastian winsv FabianMatchupOptimal
Wide44%70%72%69.2%±5.335% ▼
Body5%60%61%57.5%±12.30% ▼
T52%74%79%78.2%±4.765% ▲

Optimal v Fabian Marozsan: +1.0±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +4.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowSebastian winsv FabianMatchupOptimal
Wide56%71%72%70.8%±5.546% ▼
Body3%67%64%68.2%±13.60% ▼
T41%72%71%71.7%±5.554% ▲

Optimal v Fabian Marozsan: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +0.6 per 100 first serves in before the returner adjusts.

Fabian Marozsan serving

Deuce court

1st serveNowFabian winsv SebastianMatchupOptimal
Wide47%69%77%73.6%±4.860% ▲
Body10%69%61%66.9%±9.60% ▼
T44%69%76%70.3%±5.640% ▼

Optimal v Sebastian Korda: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowFabian winsv SebastianMatchupOptimal
Wide50%71%74%72.4%±5.148% ▼
Body11%69%68%73.2%±8.90% ▼
T38%64%75%67.7%±5.952% ▲

Optimal v Sebastian Korda: +0.3±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving body every time would read +2.5 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.

Sebastian Korda returning

1st serve to the forehand

ReturnNowTourOwnv FabianValue
FH through the middle49%+4.3−1.1+3.4+6.6±2.2
FH crosscourt26%+5.5−3.8+7.1+8.7±3.8
FH down the line14%+1.7−3.5+2.9+1.0±4.2
FH slice through the middle6%−4.2−1.8−0.6−6.7±2.4
FH slice crosscourt3%−4.3−2.1+0.5−6.0±2.3

Lean FH crosscourt: +3.8±3.1 per 100 returns v the current mix (948 returns charted)

1st serve to the backhand

ReturnNowTourOwnv FabianValue
BH through the middle36%+6.4−0.3+3.5+9.6±2.2
BH crosscourt33%+8.8−2.1+4.9+11.6±2.9
BH slice through the middle11%−4.2−2.6+0.3−6.5±2.4
BH down the line10%+4.2−3.3+3.4+4.3±4.5
BH slice crosscourt8%+0.5−4.1+1.7−1.9±3.0

Lean BH crosscourt: +5.0±2.1 per 100 returns v the current mix (886 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv FabianValue
FH through the middle49%−3.5+2.0+1.0−0.5±2.7
FH crosscourt35%−0.2−1.0+0.9−0.4±4.3
FH down the line14%−1.8+2.4−0.7−0.2±4.7
BH inside-in2%+2.5−1.7+1.2+2.1±2.7

Lean FH down the line: +0.2±4.5 per 100 returns v the current mix (271 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv FabianValue
BH crosscourt46%+1.0−1.8+1.2+0.4±2.7
BH through the middle38%−2.9+0.7+1.0−1.2±2.1
BH down the line12%−0.2−3.7+3.7−0.2±5.0
FH through the middle2%−2.9−0.7+1.0−2.6±2.2
BH slice through the middle2%−11.3−1.7±0.0−13.0±1.2

Lean BH crosscourt: +1.0±1.8 per 100 returns v the current mix (565 returns charted, inside the 90% margin)

Fabian Marozsan returning

1st serve to the forehand

ReturnNowTourOwnv SebastianValue
FH through the middle39%+4.3+1.4+1.5+7.1±2.3
FH crosscourt19%+5.5+4.6+1.4+11.4±4.0
FH slice through the middle16%−4.2+0.1+0.6−3.6±2.3
FH down the line14%+1.7+4.8−0.6+5.9±4.1
FH slice down the line8%−4.3+1.0−1.3−4.5±3.1

Lean FH crosscourt: +6.7±3.5 per 100 returns v the current mix (360 returns charted)

1st serve to the backhand

ReturnNowTourOwnv SebastianValue
BH through the middle40%+6.4+2.1−0.4+8.1±2.2
BH crosscourt30%+8.8+2.5+1.7+13.0±3.0
BH slice through the middle11%−4.2+0.2−1.3−5.3±2.3
BH down the line11%+4.2−1.2−2.1+0.9±4.4
BH slice crosscourt6%+0.5−0.9+0.7+0.3±2.8

Lean BH crosscourt: +6.7±2.4 per 100 returns v the current mix (317 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv SebastianValue
FH through the middle44%−3.5+0.6+0.6−2.2±2.6
FH down the line26%−1.8−0.4−1.0−3.2±4.5
FH crosscourt24%−0.2+1.6+0.7+2.0±4.0
FH slice through the middle6%−12.7−0.1−0.2−13.0±1.7

Lean FH crosscourt: +4.1±3.5 per 100 returns v the current mix (104 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv SebastianValue
BH through the middle47%−2.9+2.4+0.2−0.3±2.0
BH crosscourt40%+1.0+1.7−0.1+2.6±2.7
BH down the line13%−0.2+1.8−0.6+1.0±4.6

Lean BH crosscourt: +1.6±2.0 per 100 returns v the current mix (229 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.

Sebastian Korda

Favour

ShotEdgeOwnTheirs
FH to their forehand · return +1+4.4±3.4+1.4+2.9
FH to their forehand · return+3.2±3.6−2.7+5.9
FH to the middle · return+3.0±1.9−0.2+3.1
FH to their backhand · serve +1+2.7±2.6+0.3+2.4
BH to the middle · return+2.7±1.6+0.2+2.5
BH to their forehand · serve +1+2.5±4.4+0.8+1.7

Avoid

ShotEdgeOwnTheirs
BH slice to the middle · rally−3.2±2.3−2.2−1.0
BH to their forehand · rally−2.9±3.4−3.3+0.4
FH slice to the middle · rally−2.2±2.9−1.9−0.4
FH to their backhand · return−2.1±3.5−4.0+1.9
BH to the middle · rally−1.8±1.6−1.5−0.3

Fabian Marozsan

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+5.8±3.8+4.7+1.1
FH to the middle · return+3.3±2.0+1.9+1.5
BH to their backhand · return+2.6±2.3+1.9+0.6
FH to their forehand · return +1+2.4±3.5+2.7−0.4
FH to the middle · serve +1+2.3±2.4+0.6+1.7
FH to their backhand · serve +1+2.2±2.7+1.4+0.7

Avoid

ShotEdgeOwnTheirs
BH slice to their backhand · rally−4.5±2.1−3.9−0.6
BH to the middle · return +1−1.5±2.3−2.6+1.1
BH to their forehand · return−1.5±4.0+0.3−1.8
BH to the middle · rally−1.5±1.7−1.6+0.1
BH to their forehand · serve +1−1.2±4.3−0.5−0.7

Against Fabian Marozsan-like opponents

Sebastian Korda vMatchesServe pts wonReturn pts won
All charted opponents–63.8%34.0%
Players most similar to Fabian Marozsan8 62.9%33.2%

Similar by tactical fingerprint: Joao Fonseca, Hubert Hurkacz, Carlos Alcaraz, Zizou Bergs, Laslo Djere, Francisco Cerundolo, Roman Safiullin, Fabio Fognini, Kei Nishikori. When two players have rarely met, their records against these lookalikes fill the gap.