RallyIQ

Game plan

Felix Auger Aliassime v Lorenzo Sonego

Every number combines what Felix Auger Aliassime does well with what Lorenzo Sonego allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Felix Auger Aliassime wins, best of 3 71%90%: 51%–86% · best of 5: 75%
Serve points won 68.8% / 64.3% Felix / Lorenzo · tour 64.0%
Strengths only, no similarity priors 71%serve 69.3% / 64.7%

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 Felix Auger Aliassime's record against Lorenzo Sonego's tactical lookalikes and in their charted head-to-heads (lookalikes: −1.2 on serve, +0.5 on return vs expectation (2040 points); head-to-head: +1.8 on serve, +7.6 on return vs expectation (96 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

CareerFelixLorenzo
Direction choice+0.01 ±0.05
better than 60%
−0.13 ±0.09
better than 22%
Shot selection+0.50 ±0.08
better than 93%
+0.12 ±0.22
better than 67%
Execution−0.79 ±0.31
better than 33%
−0.79 ±0.46
better than 33%
Points left on the table2.50 ±0.09
lower than 60%
2.89 ±0.14
lower than 25%

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: Felix Auger Aliassime −0.62, Lorenzo Sonego −0.68. 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.

Felix Auger Aliassime serving

Deuce court

1st serveNowFelix winsv LorenzoMatchupOptimal
Wide50%78%74%78.9%±3.245% ▼
Body8%66%69%71.6%±7.00% ▼
T42%78%77%79.5%±3.255% ▲

Optimal v Lorenzo Sonego: +0.6±0.5 per 100 first serves (faults included) over the current mix. Serving T every time would read +0.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowFelix winsv LorenzoMatchupOptimal
Wide46%75%75%77.4%±3.440% ▼
Body6%63%70%70.1%±7.80% ▼
T47%76%78%82.1%±3.260% ▲

Optimal v Lorenzo Sonego: +0.8±0.5 per 100 first serves (faults included) over the current mix. Serving T every time would read +2.9 per 100 first serves in before the returner adjusts.

Lorenzo Sonego serving

Deuce court

1st serveNowLorenzo winsv FelixMatchupOptimal
Wide56%67%75%69.4%±3.555%
Body12%63%64%64.0%±7.20% ▼
T32%75%74%73.8%±4.145% ▲

Optimal v Felix Auger Aliassime: +0.8±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +3.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowLorenzo winsv FelixMatchupOptimal
Wide46%75%72%73.4%±3.859% ▲
Body15%67%65%69.3%±7.02% ▼
T39%73%74%75.1%±3.839%

Optimal v Felix Auger Aliassime: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.7 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.

Felix Auger Aliassime returning

1st serve to the forehand

ReturnNowTourOwnv LorenzoValue
FH through the middle50%+4.3−0.6±0.0+3.6±1.6
FH down the line21%+1.7−0.9+0.4+1.2±3.2
FH crosscourt20%+5.5−1.5+3.6+7.5±3.3
FH slice through the middle6%−4.2−1.3−1.5−7.0±2.2
FH slice down the line2%−4.3+0.1+1.2−3.0±3.1

Lean FH crosscourt: +4.6±2.9 per 100 returns v the current mix (1741 returns charted)

1st serve to the backhand

ReturnNowTourOwnv LorenzoValue
BH through the middle39%+6.4+1.5+0.7+8.6±1.7
BH crosscourt34%+8.8+0.1+0.2+9.1±2.4
BH slice through the middle11%−4.2−0.9+0.1−5.1±2.1
BH down the line7%+4.2+1.4+3.9+9.6±4.3
BH slice crosscourt6%+0.5−1.8−2.3−3.6±2.9

Lean BH down the line: +3.3±4.1 per 100 returns v the current mix (2015 returns charted, inside the 90% margin)

2nd serve to the forehand

ReturnNowTourOwnv LorenzoValue
FH through the middle47%−3.5−0.1−0.1−3.7±2.3
FH crosscourt30%−0.2−0.5−0.3−1.0±4.1
FH down the line19%−1.8−2.0−1.5−5.2±4.5
FH slice through the middle2%−12.7+0.3−0.3−12.6±1.6
FH slice down the line1%−9.4+0.1±0.0−9.4±1.4

Lean FH crosscourt: +2.4±3.2 per 100 returns v the current mix (403 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv LorenzoValue
BH crosscourt36%+1.0−3.2+0.2−2.0±2.3
BH through the middle34%−2.9−1.3+0.8−3.4±1.7
FH through the middle9%−2.9−0.2−0.1−3.1±2.1
BH down the line8%−0.2+2.0+0.6+2.4±4.8
FH inside-in6%+0.6+1.4−0.3+1.6±4.3

Lean BH down the line: +4.3±4.6 per 100 returns v the current mix (1299 returns charted, inside the 90% margin)

Lorenzo Sonego returning

1st serve to the forehand

ReturnNowTourOwnv FelixValue
FH through the middle33%+4.3+1.6−0.2+5.7±2.0
FH slice through the middle23%−4.2+0.7−1.3−4.8±1.9
FH down the line19%+1.7+1.7−3.3+0.1±3.5
FH crosscourt12%+5.5±0.0−0.6+4.9±3.8
FH slice down the line9%−4.3−1.4−1.0−6.7±3.1

Lean FH through the middle: +5.2±1.6 per 100 returns v the current mix (725 returns charted)

1st serve to the backhand

ReturnNowTourOwnv FelixValue
BH through the middle41%+6.4+0.2+0.6+7.2±1.6
BH crosscourt23%+8.8±0.0−0.6+8.2±2.5
BH slice through the middle15%−4.2−0.4−2.0−6.6±2.1
BH down the line10%+4.2−4.5−1.4−1.7±4.2
BH slice down the line5%−8.4−1.1−2.4−11.8±3.5

Lean BH crosscourt: +5.3±2.1 per 100 returns v the current mix (873 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv FelixValue
FH through the middle48%−3.5−1.2−0.3−5.0±2.4
FH down the line24%−1.8+2.8−2.8−1.8±4.2
FH crosscourt20%−0.2−0.2−5.6−6.0±4.0
FH slice through the middle4%−12.7+0.5−0.2−12.4±1.9
FH slice down the line4%−9.4−0.2−1.0−10.7±2.2

Lean FH down the line: +3.2±3.5 per 100 returns v the current mix (139 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv FelixValue
BH through the middle43%−2.9−1.1+0.1−3.9±1.5
BH crosscourt34%+1.0−1.2−1.5−1.7±2.2
BH down the line9%−0.2−0.5+0.3−0.4±4.6
FH through the middle7%−2.9+1.0−0.3−2.2±2.0
FH inside-out3%+1.0−0.7−2.8−2.5±3.2

Lean BH down the line: +2.3±4.4 per 100 returns v the current mix (708 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.

Felix Auger Aliassime

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+5.1±4.8+1.9+3.2
BH to their forehand · serve +1+3.6±5.7+3.9−0.3
FH to their forehand · serve +1+3.2±2.7+1.1+2.1
FH to their forehand · return+2.4±3.9−0.9+3.3
BH to the middle · rally+1.2±1.7−0.4+1.6
BH to the middle · return+1.1±1.6+1.0+0.1

Avoid

ShotEdgeOwnTheirs
FH volley to their forehand · rally−8.9±7.2+0.2−9.0
BH volley to their backhand · rally−7.7±8.3−3.7−4.0
FH volley to their backhand · rally−6.5±7.7−2.5−3.9
BH slice to their backhand · return−6.2±3.9−2.3−3.9
BH to their forehand · return +1−5.8±5.5−1.9−3.9

Lorenzo Sonego

Favour

ShotEdgeOwnTheirs
BH volley to their backhand · rally+12.0±8.2+4.0+8.0
FH volley to their forehand · rally+5.3±7.4+1.3+4.1
FH to the middle · return +1+2.2±3.0+1.7+0.5
FH to their forehand · serve +1+1.8±2.7+1.3+0.5
BH to their backhand · return +1+1.2±3.2+0.7+0.5
BH to their backhand · rally+0.7±1.8−0.1+0.8

Avoid

ShotEdgeOwnTheirs
BH to their forehand · serve +1−9.0±5.9−5.7−3.3
FH to their forehand · return−6.6±4.7−3.1−3.6
BH to their forehand · rally−6.1±3.8−5.0−1.1
BH to their forehand · return +1−5.9±6.1−6.9+1.0
BH slice to their backhand · return−5.4±3.9−3.4−2.0

Against Lorenzo Sonego-like opponents

Felix Auger Aliassime vMatchesServe pts wonReturn pts won
All charted opponents–65.8%34.5%
Players most similar to Lorenzo Sonego17 63.4%34.1%
Lorenzo Sonego (charted head-to-head)1 70.9%45.2%

Similar by tactical fingerprint: Casper Ruud, Stefanos Tsitsipas, Arthur Fils, Ben Shelton, Carlos Alcaraz, Tallon Griekspoor, Alejandro Tabilo, Zizou Bergs, Holger Rune. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head