RallyIQ

Game plan

Joao Fonseca v Alexei Popyrin

Every number combines what Joao Fonseca does well with what Alexei Popyrin allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Joao Fonseca wins, best of 3 81%90%: 58%–93% · best of 5: 86%
Serve points won 69.4% / 62.3% Joao / Alexei · tour 63.5%
Strengths only, no similarity priors 75%serve 68.8% / 63.2%

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 Joao Fonseca's record against Alexei Popyrin's tactical lookalikes and in their charted head-to-heads (lookalikes: +6.0 on serve, +8.4 on return vs expectation (341 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

CareerJoaoAlexei
Direction choice+0.02 ±0.07
better than 62%
+0.04 ±0.06
better than 69%
Shot selection−0.24 ±0.14
better than 28%
+0.29 ±0.15
better than 79%
Execution+0.83 ±0.60
better than 93%
−0.73 ±0.59
better than 36%
Points left on the table2.55 ±0.09
lower than 55%
2.71 ±0.10
lower than 39%

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: Joao Fonseca +0.52, Alexei Popyrin −0.78. 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.

Joao Fonseca serving

Deuce court

1st serveNowJoao winsv AlexeiMatchupOptimal
Wide43%76%73%76.2%±4.256% ▲
Body9%65%64%64.9%±9.00% ▼
T48%76%75%75.4%±4.344% ▼

Optimal v Alexei Popyrin: +0.8±0.7 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJoao winsv AlexeiMatchupOptimal
Wide52%69%74%70.3%±4.750% ▼
Body10%61%69%67.1%±9.60% ▼
T37%70%73%71.4%±5.150% ▲

Optimal v Alexei Popyrin: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.0 per 100 first serves in before the returner adjusts.

Alexei Popyrin serving

Deuce court

1st serveNowAlexei winsv JoaoMatchupOptimal
Wide45%73%69%69.1%±4.753% ▲
Body9%62%60%58.3%±9.60% ▼
T45%78%73%76.5%±4.347% ▲

Optimal v Joao Fonseca: +0.6±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +5.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAlexei winsv JoaoMatchupOptimal
Wide52%76%72%75.3%±4.465% ▲
Body5%63%62%61.7%±10.90% ▼
T43%74%74%76.3%±4.635% ▼

Optimal v Joao Fonseca: +0.3±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.3 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.

Joao Fonseca returning

1st serve to the forehand

ReturnNowTourOwnv AlexeiValue
FH through the middle42%+4.3+1.9+1.7+7.9±2.2
FH crosscourt17%+5.5+3.7+1.7+10.9±4.0
FH slice through the middle17%−4.2−1.3+0.3−5.3±2.2
FH down the line14%+1.7+6.9−4.4+4.2±4.2
FH slice down the line5%−4.3+2.6+1.5−0.2±3.2

Lean FH crosscourt: +6.2±3.5 per 100 returns v the current mix (792 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AlexeiValue
BH through the middle41%+6.4+2.6+0.5+9.5±2.0
BH crosscourt24%+8.8+3.2−0.9+11.0±2.9
BH down the line13%+4.2+6.3+1.0+11.5±4.5
BH slice through the middle12%−4.2−1.2−2.0−7.4±2.4
BH slice crosscourt7%+0.5+1.2−3.4−1.7±3.0

Lean BH down the line: +4.9±4.1 per 100 returns v the current mix (891 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AlexeiValue
FH through the middle37%−3.5−0.7+0.3−3.8±2.6
FH crosscourt36%−0.2−0.7+1.5+0.6±4.3
FH down the line18%−1.8+1.9−3.4−3.4±4.6
FH slice through the middle4%−12.7−0.1−0.3−13.1±1.8
FH slice down the line3%−9.4+0.3±0.0−9.1±1.4

Lean FH crosscourt: +3.1±3.0 per 100 returns v the current mix (233 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv AlexeiValue
BH through the middle38%−2.9−0.6−0.4−3.9±2.0
BH crosscourt33%+1.0−1.2−2.2−2.4±2.6
BH down the line14%−0.2+0.7+3.2+3.7±4.9
FH through the middle7%−2.9−1.2+0.3−3.7±2.3
FH inside-in5%+0.6+0.5+1.5+2.6±4.3

Lean BH down the line: +5.8±4.4 per 100 returns v the current mix (627 returns charted)

Alexei Popyrin returning

1st serve to the forehand

ReturnNowTourOwnv JoaoValue
FH through the middle44%+4.3+1.5+2.3+8.1±2.2
FH down the line21%+1.7+1.8+3.3+6.8±3.9
FH crosscourt19%+5.5+3.3+3.2+12.0±3.9
FH slice through the middle11%−4.2−1.3+0.5−5.0±2.3
FH slice down the line4%−4.3−0.6+2.9−1.9±3.1

Lean FH crosscourt: +5.4±3.4 per 100 returns v the current mix (584 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JoaoValue
BH through the middle41%+6.4+1.0+2.3+9.7±1.9
BH down the line20%+4.2−1.4+4.0+6.8±4.2
BH slice through the middle15%−4.2+0.8+0.2−3.2±2.4
BH crosscourt13%+8.8+1.6+3.3+13.6±3.1
BH slice crosscourt7%+0.5−3.0+0.7−1.8±3.0

Lean BH crosscourt: +7.6±2.9 per 100 returns v the current mix (633 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JoaoValue
FH through the middle47%−3.5−0.9−2.1−6.5±2.6
FH crosscourt32%−0.2+5.2−1.3+3.6±4.2
FH down the line21%−1.8−4.1+0.1−5.8±4.3

Lean FH crosscourt: +6.7±3.2 per 100 returns v the current mix (139 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv JoaoValue
BH through the middle37%−2.9−4.1−0.3−7.3±2.0
BH down the line21%−0.2−1.5−0.5−2.3±4.8
BH crosscourt18%+1.0−3.2+0.6−1.5±2.9
FH through the middle10%−2.9−2.4−2.1−7.3±2.2
FH inside-out9%+1.0−1.3+0.1−0.2±3.5

Lean FH inside-out: +4.3±3.5 per 100 returns v the current mix (463 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.

Joao Fonseca

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+6.1±3.9+3.3+2.8
BH to their forehand · serve +1+4.9±4.2+2.5+2.5
BH to their backhand · return +1+3.3±2.7−0.7+4.0
FH to their forehand · serve +1+3.2±2.5+1.3+1.8
FH to their forehand · return+2.7±3.5+0.8+1.9
BH to their forehand · return +1+2.7±4.6−0.2+2.9

Avoid

ShotEdgeOwnTheirs
BH slice to the middle · rally−5.7±2.2−3.9−1.8
BH slice to their backhand · rally−3.8±2.3−2.0−1.8
BH slice to the middle · return−1.8±2.3−0.7−1.2
BH to their backhand · rally−1.2±1.6−1.3+0.1
FH slice to the middle · return−1.1±2.2−1.3+0.2

Alexei Popyrin

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+4.8±3.5+3.5+1.3
FH volley to their backhand · rally+3.4±5.8+2.0+1.5
BH slice to the middle · return+2.1±2.4+1.4+0.7
BH to their backhand · return+1.3±2.4−1.5+2.8
FH to the middle · return +1+1.3±2.5+0.2+1.1
BH to their forehand · return+1.2±3.5−1.7+2.9

Avoid

ShotEdgeOwnTheirs
BH slice to their forehand · rally−5.6±3.4−1.2−4.4
BH to their backhand · rally−5.3±1.8−4.3−0.9
BH to their forehand · rally−4.7±3.4−4.8±0.0
BH slice to the middle · return +1−4.7±2.3+0.2−5.0
BH to their forehand · serve +1−4.6±4.4−0.9−3.7

Against Alexei Popyrin-like opponents

Joao Fonseca vMatchesServe pts wonReturn pts won
All charted opponents–65.5%36.6%
Players most similar to Alexei Popyrin2 73.3%44.8%

Similar by tactical fingerprint: Stefanos Tsitsipas, Hubert Hurkacz, Tallon Griekspoor, Zizou Bergs, Thanasi Kokkinakis, Dominic Thiem, Lucas Pouille, Lloyd Harris, Jo Wilfried Tsonga. When two players have rarely met, their records against these lookalikes fill the gap.