RallyIQ

Game plan

Jannik Sinner v Holger Rune

Every number combines what Jannik Sinner does well with what Holger Rune allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Jannik Sinner wins, best of 3 95%90%: 85%–99% · best of 5: 98%
Serve points won 71.7% / 58.2% Jannik / Holger · tour 63.5%
Strengths only, no similarity priors 97%serve 72.4% / 57.1%

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 Jannik Sinner's record against Holger Rune's tactical lookalikes and in their charted head-to-heads (lookalikes: −2.6 on serve, −1.0 on return vs expectation (1377 points); head-to-head: +0.8 on serve, −3.6 on return vs expectation (784 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

CareerJannikHolger
Direction choice−0.07 ±0.02
better than 40%
−0.08 ±0.07
better than 35%
Shot selection+0.50 ±0.04
better than 93%
+0.20 ±0.12
better than 72%
Execution+0.25 ±0.16
better than 78%
−0.49 ±0.34
better than 45%
Points left on the table2.38 ±0.04
lower than 75%
2.80 ±0.11
lower than 30%

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: Jannik Sinner +0.62, Holger Rune −0.89. 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.

Jannik Sinner serving

Deuce court

1st serveNowJannik winsv HolgerMatchupOptimal
Wide46%78%73%77.9%±2.444% ▼
Body11%67%68%72.2%±5.40% ▼
T43%78%77%80.5%±2.556% ▲

Optimal v Holger Rune: +0.5±0.5 per 100 first serves (faults included) over the current mix. Serving T every time would read +2.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJannik winsv HolgerMatchupOptimal
Wide58%76%71%75.0%±2.752% ▼
Body7%68%67%71.4%±5.80% ▼
T35%76%73%76.8%±2.848% ▲

Optimal v Holger Rune: +0.5±0.4 per 100 first serves (faults included) over the current mix. Serving T every time would read +1.4 per 100 first serves in before the returner adjusts.

Holger Rune serving

Deuce court

1st serveNowHolger winsv JannikMatchupOptimal
Wide53%71%68%66.0%±2.866% ▲
Body10%66%58%61.5%±5.90% ▼
T36%70%72%67.7%±3.434% ▼

Optimal v Jannik Sinner: +0.4±0.5 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowHolger winsv JannikMatchupOptimal
Wide49%71%69%67.6%±3.162% ▲
Body7%60%59%56.2%±7.30% ▼
T45%71%66%64.8%±3.438% ▼

Optimal v Jannik Sinner: +0.3±0.4 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.0 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.

Jannik Sinner returning

1st serve to the forehand

ReturnNowTourOwnv HolgerValue
FH through the middle57%+4.3+1.3+1.7+7.3±1.2
FH crosscourt23%+5.5+0.2+1.2+6.9±2.5
FH down the line16%+1.7−0.1+0.4+2.0±2.9
FH slice through the middle2%−4.2−4.2−0.5−9.0±2.2
FH slice crosscourt1%−4.3−1.8−1.5−7.7±2.8

Lean FH through the middle: +1.4±0.9 per 100 returns v the current mix (5521 returns charted)

1st serve to the backhand

ReturnNowTourOwnv HolgerValue
BH through the middle44%+6.4+0.1−0.2+6.3±1.2
BH crosscourt29%+8.8−0.6+1.3+9.5±1.8
BH down the line10%+4.2+0.3−0.4+4.0±3.4
BH slice through the middle9%−4.2−6.9+0.2−11.0±1.9
BH slice crosscourt5%+0.5−7.2−0.4−7.0±2.6

Lean BH crosscourt: +5.3±1.4 per 100 returns v the current mix (5508 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv HolgerValue
FH through the middle58%−3.5+0.5+0.8−2.2±1.6
FH crosscourt24%−0.2+0.5−1.7−1.4±3.2
FH down the line18%−1.8−1.3−0.5−3.6±3.7
BH through the middle0%+0.1+0.6−1.2−0.5±1.3

Lean FH crosscourt: +0.8±2.7 per 100 returns v the current mix (1459 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv HolgerValue
BH through the middle45%−2.9+0.6−1.2−3.5±1.2
BH crosscourt43%+1.0−0.4−0.7−0.1±1.7
BH down the line7%−0.2+1.3±0.0+1.1±4.2
FH through the middle3%−2.9±0.0+0.8−2.0±2.0
FH inside-in1%+0.6+0.2−1.7−1.0±4.0
FH inside-out1%+1.0+1.0−0.5+1.4±3.4

Lean FH inside-out: +3.1±3.5 per 100 returns v the current mix (3318 returns charted, inside the 90% margin)

Holger Rune returning

1st serve to the forehand

ReturnNowTourOwnv JannikValue
FH through the middle44%+4.3−1.0−1.6+1.6±1.4
FH down the line19%+1.7+0.8−4.4−1.9±2.9
FH slice through the middle17%−4.2+0.2−1.1−5.2±1.6
FH crosscourt13%+5.5−1.3−1.6+2.6±3.0
FH slice down the line4%−4.3+0.9−5.4−8.8±2.9

Lean FH crosscourt: +3.5±2.8 per 100 returns v the current mix (1175 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JannikValue
BH through the middle41%+6.4−0.1−0.8+5.5±1.4
BH crosscourt30%+8.8+0.5−1.2+8.1±2.0
BH slice through the middle12%−4.2−1.8−3.3−9.2±1.8
BH down the line9%+4.2−2.4−2.8−1.0±3.6
BH slice crosscourt4%+0.5−1.0−4.0−4.5±2.5

Lean BH crosscourt: +5.3±1.5 per 100 returns v the current mix (1090 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JannikValue
FH through the middle48%−3.5+1.4−1.0−3.1±1.9
FH down the line32%−1.8−0.5−3.0−5.3±3.6
FH crosscourt16%−0.2−4.8−1.6−6.6±3.5
FH slice down the line2%−9.4+0.4−1.8−10.8±2.6
FH slice through the middle2%−12.7−0.7−0.5−13.9±2.0

Lean FH through the middle: +1.7±1.6 per 100 returns v the current mix (321 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv JannikValue
BH through the middle44%−2.9−1.2−0.5−4.6±1.4
BH crosscourt40%+1.0−0.9−2.0−1.9±1.8
BH down the line8%−0.2−2.9−1.3−4.4±4.1
FH through the middle3%−2.9−1.9−1.0−5.7±1.7
FH inside-out2%+1.0−4.4−3.0−6.5±2.5

Lean BH crosscourt: +1.9±1.3 per 100 returns v the current mix (680 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.

Jannik Sinner

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+5.0±1.5+1.8+3.2
BH to their forehand · return +1+4.5±3.2+2.3+2.2
FH to the middle · return+2.9±1.0+1.5+1.4
FH to the middle · return +1+2.0±1.6+1.4+0.6
BH to their forehand · return+1.9±2.7+2.0−0.1
FH volley to their forehand · rally+1.9±4.6+0.9+1.0

Avoid

ShotEdgeOwnTheirs
BH slice to their forehand · return +1−7.2±3.4−4.7−2.5
BH slice to their backhand · return−6.8±2.5−6.0−0.8
BH slice to the middle · return−6.2±1.8−6.0−0.2
BH slice to their forehand · rally−5.6±2.9−3.8−1.8
BH volley to their forehand · rally−5.0±5.2−1.7−3.3

Holger Rune

Favour

ShotEdgeOwnTheirs
FH volley to the middle · rally+4.4±5.4+3.8+0.7
FH volley to their forehand · serve +1+3.1±5.3+1.4+1.7
FH volley to their forehand · rally+3.0±4.5+1.8+1.2
Smash to their forehand · rally+2.5±4.1+3.4−0.9
FH to their forehand · return +1+1.9±2.3+2.0−0.1
FH to the middle · rally+1.8±1.0+2.1−0.3

Avoid

ShotEdgeOwnTheirs
BH to their forehand · return +1−8.3±3.4−4.3−4.0
BH volley to their backhand · rally−7.7±5.0−4.5−3.2
BH drop shot to their forehand · serve +1−6.3±5.2−1.9−4.4
BH to their forehand · serve +1−5.6±3.3−3.5−2.1
FH to their forehand · return−5.2±2.6−3.3−1.8

Against Holger Rune-like opponents

Jannik Sinner vMatchesServe pts wonReturn pts won
All charted opponents–68.1%40.7%
Players most similar to Holger Rune9 66.9%41.9%
Holger Rune (charted head-to-head)4 69.3%36.9%

Similar by tactical fingerprint: Jakub Mensik, Alejandro Tabilo, Alexander Shevchenko, Laslo Djere, Alexandre Muller, Roman Safiullin, Fabio Fognini, Matteo Arnaldi, Otto Virtanen, Gregoire Barrere. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head