RallyIQ

Game plan

Pedro Martinez v Matteo Arnaldi

Every number combines what Pedro Martinez does well with what Matteo Arnaldi allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Pedro Martinez wins, best of 3 10%90%: 2%–34% · best of 5: 6%
Serve points won 56.1% / 66.0% Pedro / Matteo · tour 63.5%
Strengths only, no similarity priors 10%serve 56.1% / 66.0%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Pedro Martinez's record against Matteo Arnaldi'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

CareerPedroMatteo
Direction choice−0.06 ±0.08
better than 43%
±0.00 ±0.05
better than 57%
Shot selection−0.06 ±0.23
better than 46%
−0.18 ±0.32
better than 32%
Execution+0.23 ±0.43
better than 77%
−0.22 ±0.92
better than 56%
Points left on the table2.66 ±0.12
lower than 43%
2.65 ±0.11
lower than 45%

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: Pedro Martinez +1.40, Matteo Arnaldi +1.08. 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.

Pedro Martinez serving

Deuce court

1st serveNowPedro winsv MatteoMatchupOptimal
Wide41%65%72%63.9%±6.539% ▼
Body11%59%65%61.3%±11.50% ▼
T48%68%76%69.4%±6.461% ▲

Optimal v Matteo Arnaldi: +0.3±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowPedro winsv MatteoMatchupOptimal
Wide54%63%71%60.8%±6.741% ▼
Body16%59%59%54.7%±11.816%
T30%62%71%61.1%±7.543% ▲

Optimal v Matteo Arnaldi: +0.4±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.2 per 100 first serves in before the returner adjusts.

Matteo Arnaldi serving

Deuce court

1st serveNowMatteo winsv PedroMatchupOptimal
Wide47%70%75%72.4%±5.744% ▼
Body10%61%70%67.6%±10.60% ▼
T43%72%76%72.8%±6.256% ▲

Optimal v Pedro Martinez: +0.3±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +0.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMatteo winsv PedroMatchupOptimal
Wide47%66%71%64.8%±6.736% ▼
Body3%66%56%59.2%±14.81% ▼
T50%68%73%69.0%±6.763% ▲

Optimal v Pedro Martinez: +0.6±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.3 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.

Pedro Martinez returning

1st serve to the forehand

ReturnNowTourOwnv MatteoValue
FH through the middle43%+4.3+2.1+2.8+9.2±2.6
FH crosscourt21%+5.5+1.1+5.4+12.0±4.2
FH slice through the middle13%−4.2+1.7+1.0−1.5±2.3
FH down the line12%+1.7+1.9+1.2+4.7±4.5
FH slice crosscourt8%−4.3+0.6±0.0−3.7±2.0

Lean FH crosscourt: +5.5±3.6 per 100 returns v the current mix (426 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MatteoValue
BH through the middle41%+6.4+2.2+2.1+10.7±2.4
BH crosscourt27%+8.8−3.4+3.2+8.6±3.2
BH down the line13%+4.2−0.4+2.1+5.9±4.6
BH slice through the middle12%−4.2−1.5+0.9−4.8±2.5
BH slice crosscourt4%+0.5−1.5−0.3−1.3±2.8

Lean BH through the middle: +4.2±1.8 per 100 returns v the current mix (517 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MatteoValue
FH through the middle52%−3.5+1.2−0.5−2.8±2.9
FH crosscourt37%−0.2−0.4−0.1−0.8±4.4
FH down the line10%−1.8+0.6+1.1±0.0±4.2

Lean FH crosscourt: +1.0±3.2 per 100 returns v the current mix (107 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MatteoValue
BH through the middle41%−2.9−0.2−1.5−4.6±2.2
BH crosscourt30%+1.0±0.0−0.1+0.9±2.8
BH down the line14%−0.2+5.2+0.2+5.2±5.0
FH inside-out7%+1.0−0.7+1.1+1.4±3.6
FH through the middle5%−2.9−0.7−0.5−4.1±2.2

Lean BH down the line: +6.2±4.5 per 100 returns v the current mix (340 returns charted)

Matteo Arnaldi returning

1st serve to the forehand

ReturnNowTourOwnv PedroValue
FH through the middle39%+4.3+0.1+1.7+6.1±2.5
FH slice through the middle18%−4.2+0.8+1.7−1.7±2.3
FH down the line16%+1.7+1.9+1.6+5.2±4.4
FH crosscourt14%+5.5+2.5+6.1+14.1±4.2
FH slice down the line10%−4.3+4.3+0.8+0.9±2.9

Lean FH crosscourt: +9.1±3.9 per 100 returns v the current mix (340 returns charted)

1st serve to the backhand

ReturnNowTourOwnv PedroValue
BH through the middle42%+6.4+2.7+1.6+10.7±2.2
BH crosscourt23%+8.8+2.2+1.7+12.7±3.1
BH slice through the middle16%−4.2+0.2−1.4−5.4±2.5
BH down the line11%+4.2+4.0+4.4+12.6±4.6
BH slice crosscourt5%+0.5+1.0−2.2−0.7±2.7

Lean BH crosscourt: +4.9±2.6 per 100 returns v the current mix (324 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv PedroValue
FH through the middle45%−3.5−0.5+1.2−2.7±2.7
FH crosscourt29%−0.2−3.1−1.6−4.9±4.3
FH down the line26%−1.8−2.9−1.7−6.4±4.7

Lean FH through the middle: +1.6±2.3 per 100 returns v the current mix (126 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv PedroValue
BH through the middle42%−2.9+2.4+1.0+0.5±2.3
BH crosscourt38%+1.0+0.6+1.2+2.8±3.0
BH down the line8%−0.2+5.9−0.8+4.9±4.8
FH through the middle5%−2.9+0.4+1.2−1.3±2.1
FH inside-in4%+0.6−0.5−1.6−1.5±3.9

Lean BH down the line: +3.3±4.7 per 100 returns v the current mix (284 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.

Pedro Martinez

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+5.1±3.6+3.9+1.1
BH to their forehand · serve +1+5.0±4.6+3.3+1.8
FH to the middle · rally+4.6±1.9+3.5+1.0
FH to their forehand · return+4.1±4.0±0.0+4.1
FH to their forehand · rally+3.6±2.3+2.6+1.0
FH to their forehand · return +1+3.6±3.7+1.9+1.7

Avoid

ShotEdgeOwnTheirs
FH to their backhand · rally−3.1±2.3+0.6−3.6
BH slice to the middle · rally−2.4±2.2−0.4−2.0
FH slice to the middle · rally−1.8±3.0−0.1−1.7
FH to their backhand · serve +1+0.4±2.7+0.7−0.3
BH to the middle · serve +1+0.5±2.5+2.3−1.8

Matteo Arnaldi

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+11.0±4.5+8.2+2.7
BH to the middle · return+5.6±1.8+2.3+3.3
BH to their backhand · return+3.7±2.4+0.7+2.9
FH to their forehand · return+3.3±4.0−0.1+3.4
BH to their backhand · rally+2.1±1.7+0.5+1.6
FH to the middle · serve +1+2.1±2.5+1.4+0.7

Avoid

ShotEdgeOwnTheirs
FH slice to the middle · rally−3.4±2.9−0.1−3.3
FH to their backhand · return +1−3.0±3.7−3.9+0.8
BH slice to the middle · rally−2.8±2.3−1.6−1.2
BH to their backhand · return +1−2.6±2.8−3.1+0.5
BH to their forehand · rally−2.2±3.6−4.5+2.3

Against Matteo Arnaldi-like opponents

Pedro Martinez vMatchesServe pts wonReturn pts won
All charted opponents–58.3%34.6%

Similar by tactical fingerprint: Frances Tiafoe, James Duckworth, Alexander Shevchenko, Laslo Djere, Alexandre Muller, Holger Rune, Roman Safiullin, Fabio Fognini, Otto Virtanen, Lucas Pouille. When two players have rarely met, their records against these lookalikes fill the gap.