RallyIQ

Game plan

Joao Fonseca v Guido Pella

Every number combines what Joao Fonseca does well with what Guido Pella 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 77%90%: 46%–94% · best of 5: 82%
Serve points won 67.9% / 61.8% Joao / Guido · tour 65.7%
Strengths only, no similarity priors 80%serve 68.1% / 61.4%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Joao Fonseca's record against Guido Pella's tactical lookalikes and in their charted head-to-heads (lookalikes: −8.6 on serve, −13.1 on return vs expectation (103 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

CareerJoaoGuido
Direction choice+0.02 ±0.07
better than 62%
−0.12 ±0.12
better than 27%
Shot selection−0.24 ±0.14
better than 28%
+0.17 ±0.20
better than 71%
Execution+0.83 ±0.60
better than 93%
−0.13 ±0.51
better than 60%
Points left on the table2.55 ±0.09
lower than 55%
2.77 ±0.15
lower than 33%

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.

Joao Fonseca serving

Deuce court

1st serveNowJoao winsv GuidoMatchupOptimal
Wide43%76%76%79.1%±4.656% ▲
Body9%65%59%60.8%±11.40% ▼
T48%76%74%74.8%±5.344% ▼

Optimal v Guido Pella: +1.0±0.7 per 100 first serves (faults included) over the current mix. Serving wide every time would read +3.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJoao winsv GuidoMatchupOptimal
Wide52%69%68%63.8%±6.450% ▼
Body10%61%64%62.0%±11.40% ▼
T37%70%70%67.7%±6.050% ▲

Optimal v Guido Pella: +0.6±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.7 per 100 first serves in before the returner adjusts.

Guido Pella serving

Deuce court

1st serveNowGuido winsv JoaoMatchupOptimal
Wide35%66%69%62.1%±6.743% ▲
Body10%67%60%63.8%±10.60% ▼
T54%68%73%65.7%±5.657% ▲

Optimal v Joao Fonseca: +0.1±0.7 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 serveNowGuido winsv JoaoMatchupOptimal
Wide50%67%72%65.4%±5.644% ▼
Body8%66%62%65.3%±11.30% ▼
T43%71%74%73.2%±5.956% ▲

Optimal v Joao Fonseca: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.5 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.

Joao Fonseca returning

1st serve to the forehand

ReturnNowTourOwnv GuidoValue
FH through the middle42%+4.3+1.9+1.3+7.5±2.4
FH crosscourt17%+5.5+3.7+3.0+12.1±4.2
FH slice through the middle17%−4.2−1.3−0.2−5.7±2.2
FH down the line14%+1.7+6.9+1.7+10.3±4.4
FH slice down the line5%−4.3+2.6−0.5−2.1±2.6

Lean FH crosscourt: +6.7±3.7 per 100 returns v the current mix (792 returns charted)

1st serve to the backhand

ReturnNowTourOwnv GuidoValue
BH through the middle41%+6.4+2.6+0.9+9.8±2.1
BH crosscourt24%+8.8+3.2+1.0+12.9±3.2
BH down the line13%+4.2+6.3+0.6+11.1±4.3
BH slice through the middle12%−4.2−1.2+1.8−3.6±2.4
BH slice crosscourt7%+0.5+1.2+2.4+4.1±3.0

Lean BH crosscourt: +4.8±2.7 per 100 returns v the current mix (891 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv GuidoValue
FH through the middle37%−3.5−0.7+1.0−3.2±2.7
FH crosscourt36%−0.2−0.7+1.3+0.3±4.3
FH down the line18%−1.8+1.9+1.1+1.2±4.7
FH slice through the middle4%−12.7−0.1−0.1−12.9±1.8
FH slice down the line3%−9.4+0.3±0.0−9.1±1.4

Lean FH down the line: +2.7±4.3 per 100 returns v the current mix (233 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv GuidoValue
BH through the middle38%−2.9−0.6+0.3−3.2±2.3
BH crosscourt33%+1.0−1.2−0.8−1.0±3.0
BH down the line14%−0.2+0.7+0.8+1.3±4.8
FH through the middle7%−2.9−1.2+1.0−3.1±2.4
FH inside-in5%+0.6+0.5+1.3+2.3±4.3

Lean FH inside-in: +4.0±4.4 per 100 returns v the current mix (627 returns charted, inside the 90% margin)

Guido Pella returning

1st serve to the forehand

ReturnNowTourOwnv JoaoValue
FH through the middle48%+4.3+1.8+2.3+8.4±2.4
FH crosscourt17%+5.5+2.1+3.3+10.9±4.1
FH slice through the middle13%−4.2+2.5+0.5−1.2±2.3
FH down the line13%+1.7−0.9+3.2+4.0±4.1
FH slice crosscourt5%−4.3−0.1+2.9−1.5±2.6

Lean FH crosscourt: +4.8±3.6 per 100 returns v the current mix (286 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JoaoValue
BH through the middle38%+6.4−1.4+2.3+7.3±2.2
BH slice through the middle26%−4.2−0.6+0.2−4.6±2.4
BH crosscourt15%+8.8−1.4+4.0+11.4±3.4
BH down the line9%+4.2+0.4+3.3+7.9±3.9
BH slice down the line6%−8.4+0.5+0.7−7.2±3.4

Lean BH crosscourt: +7.7±3.1 per 100 returns v the current mix (388 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JoaoValue
FH through the middle54%−3.5+0.4−2.1−5.2±2.6
FH crosscourt28%−0.2+2.7+0.1+2.5±4.1
FH down the line19%−1.8+0.8−1.3−2.3±4.3

Lean FH crosscourt: +5.1±3.4 per 100 returns v the current mix (112 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv JoaoValue
BH through the middle47%−2.9+0.8−0.3−2.4±2.2
BH crosscourt43%+1.0+1.0−0.5+1.5±3.2
BH down the line5%−0.2−0.1+0.6+0.3±3.7
FH through the middle5%−2.9+0.7−2.1−4.3±1.8

Lean BH crosscourt: +2.2±2.1 per 100 returns v the current mix (180 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 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.

Joao Fonseca

Favour

ShotEdgeOwnTheirs
FH to their backhand · return+8.1±5.8+5.1+2.9
BH to their backhand · return+6.9±5.0+4.9+2.0
BH to the middle · return+5.8±3.4+4.0+1.8
FH to the middle · return+4.9±3.7+5.0−0.1
FH to the middle · serve +1+4.7±3.6+3.4+1.3
FH to their forehand · return+4.0±6.2+1.8+2.2

Avoid

ShotEdgeOwnTheirs
FH to their forehand · rally−5.1±4.7−2.3−2.7
BH slice to the middle · rally−3.7±3.1−2.4−1.3
BH to their backhand · rally−3.5±4.0+0.9−4.3
BH slice to their backhand · rally−2.9±3.0−1.0−1.9
FH to their forehand · return +1−1.8±6.1+1.2−3.0

Guido Pella

Favour

ShotEdgeOwnTheirs
BH to their forehand · return +1+8.3±6.8+3.4+4.9
FH to their backhand · return+6.1±5.7+4.5+1.6
BH to the middle · return+3.5±3.4−1.2+4.7
BH slice to the middle · return+3.0±3.1+2.3+0.7
FH to their forehand · return+2.6±5.7−0.8+3.4
FH to the middle · return+2.4±3.7+2.4+0.1

Avoid

ShotEdgeOwnTheirs
BH to their backhand · rally−6.8±3.9−4.5−2.3
FH to their backhand · serve +1−5.6±4.9−2.5−3.0
BH slice to the middle · rally−4.9±2.7−2.0−2.9
FH to their forehand · rally−4.7±4.7−0.7−4.0
BH slice to their backhand · rally−4.3±3.5−2.0−2.3

Against Guido Pella-like opponents

Joao Fonseca vMatchesServe pts wonReturn pts won
All charted opponents–65.5%36.6%
Players most similar to Guido Pella1 59.2%24.1%

Similar by tactical fingerprint: Cameron Norrie, Gael Monfils, Alex Molcan, Roberto Bautista Agut, Nuno Borges, Miomir Kecmanovic, Daniel Elahi Galan, Mackenzie Mcdonald, Juan Martin Del Potro, Karim Mohamed Maamoun. When two players have rarely met, their records against these lookalikes fill the gap.