RallyIQ

Game plan

Jannik Sinner v Max Purcell

Every number combines what Jannik Sinner does well with what Max Purcell 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 96%90%: 86%–99% · best of 5: 98%
Serve points won 72.2% / 58.0% Jannik / Max · tour 65.7%
Strengths only, no similarity priors 96%serve 72.2% / 58.0%

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. At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Jannik Sinner's record against Max Purcell's tactical lookalikes and in their charted head-to-heads. 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

CareerJannikMax
Direction choice−0.07 ±0.02
better than 40%
+0.07 ±0.11
better than 77%
Shot selection+0.50 ±0.04
better than 93%
−0.99 ±0.83
better than 3%
Execution+0.25 ±0.16
better than 78%
−0.38 ±0.69
better than 49%
Points left on the table2.38 ±0.04
lower than 75%
2.73 ±0.17
lower than 38%

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.

Jannik Sinner serving

Deuce court

1st serveNowJannik winsv MaxMatchupOptimal
Wide46%78%79%83.2%±4.759% ▲
Body11%67%62%66.0%±9.60% ▼
T43%78%73%76.3%±5.841% ▼

Optimal v Max Purcell: +0.6±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJannik winsv MaxMatchupOptimal
Wide58%76%80%83.2%±5.171% ▲
Body7%68%63%67.6%±10.00% ▼
T35%76%78%81.2%±5.129% ▼

Optimal v Max Purcell: +0.6±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.8 per 100 first serves in before the returner adjusts.

Max Purcell serving

Deuce court

1st serveNowMax winsv JannikMatchupOptimal
Wide55%68%68%62.7%±6.551% ▼
Body9%63%58%58.1%±11.30% ▼
T36%75%72%72.2%±7.549% ▲

Optimal v Jannik Sinner: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +6.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMax winsv JannikMatchupOptimal
Wide45%77%69%74.5%±7.058% ▲
Body11%65%59%61.1%±11.50% ▼
T43%69%66%63.0%±7.442% ▼

Optimal v Jannik Sinner: +0.7±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +6.5 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.

Jannik Sinner returning

1st serve to the forehand

ReturnNowTourOwnv MaxValue
FH through the middle57%+4.3+1.3+0.1+5.7±2.2
FH crosscourt23%+5.5+0.2+0.3+6.0±3.3
FH down the line16%+1.7−0.1+1.5+3.0±3.3
FH slice through the middle2%−4.2−4.2−0.9−9.4±2.3
FH slice crosscourt1%−4.3−1.8±0.0−6.1±2.0

Lean FH crosscourt: +1.0±2.9 per 100 returns v the current mix (5521 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv MaxValue
BH through the middle44%+6.4+0.1−1.5+5.0±2.0
BH crosscourt29%+8.8−0.6−1.4+6.8±2.5
BH down the line10%+4.2+0.3+1.7+6.2±3.4
BH slice through the middle9%−4.2−6.9−1.2−12.4±2.0
BH slice crosscourt5%+0.5−7.2−1.5−8.1±2.3

Lean BH crosscourt: +3.9±2.0 per 100 returns v the current mix (5508 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MaxValue
FH through the middle58%−3.5+0.5+2.9−0.1±2.2
FH crosscourt24%−0.2+0.5−0.8−0.5±3.2
FH down the line18%−1.8−1.3−1.7−4.7±3.4
BH through the middle0%+0.1+0.6+0.9+1.6±1.7

Lean FH through the middle: +0.9±1.3 per 100 returns v the current mix (1459 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MaxValue
BH through the middle45%−2.9+0.6+0.9−1.4±1.9
BH crosscourt43%+1.0−0.4+0.2+0.9±2.5
BH down the line7%−0.2+1.3−0.4+0.7±4.2
FH through the middle3%−2.9±0.0+2.9±0.0±2.3
FH inside-in1%+0.6+0.2−0.8−0.1±3.9

Lean BH crosscourt: +1.2±1.7 per 100 returns v the current mix (3318 returns charted, inside the 90% margin)

Max Purcell returning

1st serve to the forehand

ReturnNowTourOwnv JannikValue
FH through the middle37%+4.3−0.9−1.6+1.8±2.3
FH crosscourt21%+5.5−2.2−1.6+1.7±3.4
FH down the line19%+1.7+1.0−4.4−1.7±3.5
FH slice through the middle16%−4.2+1.4−1.1−4.0±1.8
FH slice down the line4%−4.3−1.2−5.4−10.9±2.3

Lean FH through the middle: +2.4±1.8 per 100 returns v the current mix (189 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JannikValue
BH through the middle47%+6.4+1.3−0.8+6.9±2.1
BH crosscourt24%+8.8−1.4−1.2+6.2±2.7
BH slice through the middle16%−4.2−2.4−3.3−9.9±1.8
BH down the line9%+4.2−3.7−2.8−2.3±3.2
BH slice crosscourt3%+0.5−0.5−4.0−4.0±1.7

Lean BH through the middle: +4.0±1.3 per 100 returns v the current mix (148 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv JannikValue
BH through the middle51%−2.9+2.4−0.5−1.1±1.9
BH crosscourt35%+1.0−0.5−2.0−1.5±2.4
BH down the line14%−0.2+4.2−1.3+2.7±3.5

Lean BH through the middle: −0.4±1.3 per 100 returns v the current mix (88 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 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.

Jannik Sinner

Favour

ShotEdgeOwnTheirs
BH to their backhand · rally+6.3±3.4+1.8+4.5
FH to their backhand · serve +1+5.8±4.6+3.3+2.5
FH to the middle · return+5.3±3.2+1.6+3.7
BH to their forehand · rally+4.0±5.0+1.1+2.8
FH to the middle · serve +1+3.2±3.5−0.8+3.9
BH slice to their backhand · rally+1.4±3.4+0.8+0.6

Avoid

ShotEdgeOwnTheirs
FH to the middle · rally−3.5±3.2±0.0−3.5
FH to their backhand · rally−2.6±3.5+1.0−3.6
FH to their forehand · serve +1−1.7±4.8+1.4−3.1
BH to the middle · serve +1−1.4±3.4−1.4±0.0
BH to the middle · rally−0.9±2.8+0.2−1.1

Max Purcell

Favour

ShotEdgeOwnTheirs
BH slice to their backhand · rally+5.4±3.1+3.9+1.5
BH slice to the middle · rally+3.9±2.9+5.0−1.0
BH to the middle · return+3.0±2.7+3.8−0.8
BH slice to their forehand · rally+0.6±4.4+3.2−2.6
FH to the middle · rally+0.5±3.2+0.9−0.5
BH to their backhand · rally−0.2±3.5+0.8−1.0

Avoid

ShotEdgeOwnTheirs
FH to their forehand · rally−7.3±4.2−6.3−1.0
BH to their backhand · serve +1−6.1±4.2−5.3−0.8
FH to their backhand · serve +1−4.9±4.7−4.1−0.8
BH to their backhand · return−4.4±4.4−1.2−3.3
FH to the middle · return−3.7±3.4+0.7−4.4

Against Max Purcell-like opponents

Jannik Sinner vMatchesServe pts wonReturn pts won
All charted opponents–68.1%40.7%