RallyIQ

Game plan

Thiago Monteiro v Marc Polmans

Every number combines what Thiago Monteiro does well with what Marc Polmans allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Thiago Monteiro wins, best of 3 44%90%: 17%–74% · best of 5: 43%
Serve points won 65.9% / 67.0% Thiago / Marc · tour 63.8%
Strengths only, no similarity priors 44%serve 65.9% / 67.0%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Thiago Monteiro's record against Marc Polmans'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

CareerThiagoMarc
Direction choice−0.01 ±0.13
better than 56%
−0.06 ±0.12
better than 41%
Shot selection−0.12 ±0.30
better than 36%
−0.65 ±0.46
better than 7%
Execution−0.36 ±0.78
better than 51%
+0.69 ±0.94
better than 88%
Points left on the table2.77 ±0.27
lower than 33%
2.26 ±0.13
lower than 87%

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.

Thiago Monteiro serving

Deuce court

1st serveNowThiago winsv MarcMatchupOptimal
Wide39%79%70%76.0%±8.934% ▼
Body9%61%61%59.2%±14.70% ▼
T53%71%73%69.5%±9.466% ▲

Optimal v Marc Polmans: +0.5±0.9 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 serveNowThiago winsv MarcMatchupOptimal
Wide60%69%70%66.2%±9.273% ▲
Body7%59%57%52.7%±15.90% ▼
T34%80%65%74.6%±10.427% ▼

Optimal v Marc Polmans: +0.5±0.8 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.

Marc Polmans serving

Deuce court

1st serveNowMarc winsv ThiagoMatchupOptimal
Wide45%71%69%66.8%±9.046%
Body14%53%58%48.1%±14.71% ▼
T40%76%80%81.3%±7.853% ▲

Optimal v Thiago Monteiro: +0.9±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +11.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMarc winsv ThiagoMatchupOptimal
Wide57%66%79%72.9%±9.057%
Body13%60%64%60.5%±14.30% ▼
T30%63%76%67.8%±10.143% ▲

Optimal v Thiago Monteiro: +1.0±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.2 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.

Thiago Monteiro returning

1st serve to the forehand

ReturnNowTourOwnv MarcValue
FH through the middle47%+4.3+0.5−0.1+4.6±3.1
FH crosscourt21%+5.5+2.8+1.8+10.1±4.0
FH down the line21%+1.7−1.6−0.3−0.3±4.4
FH slice through the middle11%−4.2+0.8−1.4−4.8±2.0

Lean FH crosscourt: +6.4±3.6 per 100 returns v the current mix (126 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MarcValue
BH through the middle43%+6.4−1.0+1.7+7.1±2.7
BH slice through the middle18%−4.2−0.7−1.6−6.5±2.3
BH down the line15%+4.2−1.8+0.2+2.6±4.6
BH crosscourt14%+8.8−1.9−1.4+5.5±3.3
BH slice crosscourt5%+0.5−1.5±0.0−1.0±1.8

Lean BH through the middle: +4.5±1.8 per 100 returns v the current mix (275 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MarcValue
FH through the middle50%−3.5+0.2+0.3−2.9±2.8
FH crosscourt41%−0.2±0.0+0.2±0.0±3.6
FH down the line9%−1.8−0.9+1.5−1.2±2.8

Lean FH crosscourt: +1.5±2.6 per 100 returns v the current mix (66 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MarcValue
BH through the middle39%−2.9+0.1−0.1−2.9±2.6
BH crosscourt32%+1.0+2.0−0.5+2.6±2.9
FH through the middle11%−2.9−1.1+0.3−3.7±2.3
BH down the line10%−0.2−3.7−2.8−6.7±4.6
FH inside-in8%+0.6+1.1+0.2+1.9±3.2

Lean BH crosscourt: +3.8±2.3 per 100 returns v the current mix (146 returns charted)

Marc Polmans returning

1st serve to the forehand

ReturnNowTourOwnv ThiagoValue
FH through the middle44%+4.3+2.1−1.3+5.0±3.1
FH crosscourt24%+5.5+1.6−2.5+4.5±4.3
FH slice through the middle13%−4.2+0.2+0.1−3.9±2.0
FH down the line10%+1.7+1.3−0.3+2.7±3.4
FH slice down the line8%−4.3+2.0±0.0−2.3±1.6

Lean FH through the middle: +2.1±2.1 per 100 returns v the current mix (108 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ThiagoValue
BH through the middle43%+6.4+2.0+1.2+9.6±2.7
BH crosscourt26%+8.8+1.6+2.4+12.8±3.6
BH slice through the middle15%−4.2+2.0−0.8−2.9±2.4
BH slice crosscourt13%+0.5+0.4+0.7+1.7±2.7
BH slice down the line4%−8.4−0.1−0.6−9.1±2.7

Lean BH crosscourt: +6.0±2.9 per 100 returns v the current mix (120 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv ThiagoValue
BH through the middle55%−2.9+0.7+1.1−1.0±2.6
BH crosscourt45%+1.0+0.1+2.2+3.3±3.2

Lean BH crosscourt: +2.4±2.3 per 100 returns v the current mix (56 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 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.

Thiago Monteiro

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+5.8±6.1+1.2+4.6
BH to the middle · rally+4.6±2.8+2.4+2.3
BH to the middle · return+1.9±3.4−0.5+2.4
FH to their backhand · rally+1.1±4.1−1.4+2.4
FH to their forehand · serve +1+0.7±5.8−1.3+2.0
FH to the middle · rally+0.5±3.2+0.2+0.3

Avoid

ShotEdgeOwnTheirs
BH to their backhand · return−5.9±4.0−4.0−1.9
FH to their backhand · serve +1−3.0±5.1−4.2+1.3
BH to their backhand · rally−1.8±3.5−4.0+2.1
FH to the middle · return−1.4±3.9−1.8+0.4
FH to their forehand · rally−1.0±4.5−1.2+0.2

Marc Polmans

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+6.8±6.2+4.2+2.5
BH to their backhand · return+4.6±4.9+2.9+1.7
FH to their forehand · serve +1+3.7±6.0+0.7+3.0
BH to the middle · return+3.2±3.5+1.7+1.5
FH to their backhand · serve +1+1.7±5.4+0.4+1.2
FH to their forehand · rally+1.7±4.4+0.9+0.7

Avoid

ShotEdgeOwnTheirs
FH to their backhand · rally−3.9±4.2−2.5−1.4
BH to their backhand · rally−1.3±3.6+0.1−1.4
FH to the middle · rally±0.0±3.4+2.1−2.1
BH to the middle · rally+0.9±3.0+2.4−1.5
FH to the middle · return+1.3±4.0+3.2−1.9

Against Marc Polmans-like opponents

Thiago Monteiro vMatchesServe pts wonReturn pts won
All charted opponents–65.6%32.9%