RallyIQ

Game plan

Reilly Opelka v Giovanni Mpetshi Perricard

Every number combines what Reilly Opelka does well with what Giovanni Mpetshi Perricard allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Reilly Opelka wins, best of 3 35%90%: 16%–58% · best of 5: 31%
Serve points won 71.7% / 75.2% Reilly / Giovanni · tour 63.5%
Strengths only, no similarity priors 36%serve 71.3% / 74.4%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Reilly Opelka's record against Giovanni Mpetshi Perricard's tactical lookalikes and in their charted head-to-heads (lookalikes: +1.4 on serve, −6.8 on return vs expectation (586 points); head-to-head: +5.4 on serve, +6.1 on return vs expectation (133 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

CareerReillyGiovanni
Direction choice−0.19 ±0.11
better than 16%
−0.26 ±0.07
better than 9%
Shot selection+0.14 ±0.11
better than 69%
−0.11 ±0.24
better than 38%
Execution−1.23 ±0.68
better than 18%
+0.77 ±0.79
better than 90%
Points left on the table2.88 ±0.20
lower than 25%
3.39 ±0.12
lower than 10%

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: Reilly Opelka −3.11, Giovanni Mpetshi Perricard −1.01. 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.

Reilly Opelka serving

Deuce court

1st serveNowReilly winsv GiovanniMatchupOptimal
Wide50%77%83%85.5%±3.263% ▲
Body9%62%69%67.3%±9.80% ▼
T41%80%81%85.6%±3.237% ▼

Optimal v Giovanni Mpetshi Perricard: +1.5±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +1.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowReilly winsv GiovanniMatchupOptimal
Wide49%82%79%86.4%±3.143% ▼
Body7%61%67%64.8%±11.70% ▼
T44%77%78%82.0%±3.857% ▲

Optimal v Giovanni Mpetshi Perricard: +1.1±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +3.5 per 100 first serves in before the returner adjusts.

Giovanni Mpetshi Perricard serving

Deuce court

1st serveNowGiovanni winsv ReillyMatchupOptimal
Wide45%79%80%85.3%±3.058% ▲
Body8%62%70%68.8%±8.40% ▼
T47%79%83%86.3%±3.142% ▼

Optimal v Reilly Opelka: +0.9±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +1.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowGiovanni winsv ReillyMatchupOptimal
Wide54%82%81%87.9%±2.867% ▲
Body5%61%72%70.1%±9.60% ▼
T41%77%80%84.6%±3.633% ▼

Optimal v Reilly Opelka: +0.6±0.5 per 100 first serves (faults included) over the current mix. Serving wide 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.

Reilly Opelka returning

1st serve to the forehand

ReturnNowTourOwnv GiovanniValue
FH through the middle41%+4.3−3.8+0.7+1.2±2.2
FH down the line21%+1.7−0.8−2.2−1.3±4.0
FH slice through the middle16%−4.2−2.6+0.8−6.0±2.2
FH crosscourt13%+5.5−1.9+0.6+4.1±4.3
FH slice down the line4%−4.3+1.2+1.6−1.4±3.0

Lean FH crosscourt: +4.5±3.9 per 100 returns v the current mix (809 returns charted)

1st serve to the backhand

ReturnNowTourOwnv GiovanniValue
BH through the middle57%+6.4−2.2+0.5+4.8±2.1
BH crosscourt24%+8.8−2.2−2.2+4.4±3.1
BH slice through the middle7%−4.2−1.9+1.1−5.0±2.5
BH down the line7%+4.2+2.8−0.6+6.4±4.6
BH slice crosscourt3%+0.5−1.7+0.5−0.7±2.8

Lean BH down the line: +2.7±4.6 per 100 returns v the current mix (713 returns charted, inside the 90% margin)

2nd serve to the forehand

ReturnNowTourOwnv GiovanniValue
FH through the middle43%−3.5−4.5±0.0−8.0±2.6
FH down the line31%−1.8−4.5−1.4−7.6±4.6
FH crosscourt15%−0.2−5.8+3.1−2.9±4.4
FH slice through the middle6%−12.7+0.1−0.3−12.9±2.1
BH through the middle3%+0.1−0.5+1.6+1.2±1.7

Lean FH crosscourt: +4.3±4.1 per 100 returns v the current mix (219 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv GiovanniValue
BH through the middle53%−2.9−2.9+1.6−4.3±2.2
BH crosscourt34%+1.0−3.5−0.4−2.9±3.0
BH down the line9%−0.2−1.5+0.3−1.4±4.9
FH through the middle2%−2.9+0.3±0.0−2.6±2.0
FH inside-out2%+1.0+0.7−1.4+0.3±3.1

Lean BH down the line: +2.0±4.7 per 100 returns v the current mix (482 returns charted, inside the 90% margin)

Giovanni Mpetshi Perricard returning

1st serve to the forehand

ReturnNowTourOwnv ReillyValue
FH through the middle36%+4.3+1.8+1.2+7.2±2.4
FH slice through the middle21%−4.2+1.4−0.3−3.1±2.1
FH down the line20%+1.7−0.5+4.4+5.6±4.4
FH crosscourt9%+5.5−2.0+1.7+5.2±4.2
FH slice down the line8%−4.3+2.2−1.9−3.9±3.2

Lean FH through the middle: +4.0±1.9 per 100 returns v the current mix (466 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ReillyValue
BH through the middle29%+6.4+0.9+0.8+8.1±2.2
BH slice through the middle25%−4.2+2.9−1.5−2.8±2.2
BH slice crosscourt17%+0.5+1.4−1.8±0.0±3.0
BH crosscourt11%+8.8+1.6+0.3+10.7±3.5
BH down the line10%+4.2−3.5−2.0−1.2±4.6

Lean BH crosscourt: +8.3±3.3 per 100 returns v the current mix (551 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ReillyValue
FH through the middle45%−3.5−1.8−1.3−6.6±2.7
FH down the line34%−1.8−5.4−0.2−7.3±4.7
FH crosscourt12%−0.2−0.8−0.2−1.2±4.1
FH slice through the middle5%−12.7−0.2−1.7−14.6±2.0
FH slice down the line4%−9.4−0.8±0.0−10.2±2.5

Lean FH crosscourt: +5.6±4.2 per 100 returns v the current mix (139 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv ReillyValue
BH through the middle34%−2.9−1.8−1.1−5.8±2.0
BH down the line20%−0.2−0.1−0.1−0.4±4.9
BH crosscourt15%+1.0−4.5−2.1−5.5±3.1
BH slice through the middle8%−11.3−0.5−2.8−14.5±2.4
BH slice crosscourt8%−4.0−1.4−3.2−8.6±2.6

Lean BH down the line: +4.9±4.0 per 100 returns v the current mix (384 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.

Reilly Opelka

Favour

ShotEdgeOwnTheirs
FH to the middle · serve +1+1.8±2.4+0.7+1.2
BH to their forehand · return+0.6±4.1+0.3+0.3
BH to the middle · return−0.9±1.7−2.9+2.0
BH to the middle · return +1−1.0±2.3−3.6+2.5
FH to their backhand · serve +1−1.8±2.3−2.6+0.8
FH to their forehand · return−1.8±4.1−3.9+2.1

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−6.9±3.1−4.7−2.2
FH to their forehand · return +1−6.3±3.5−6.8+0.5
BH to their backhand · return +1−5.6±3.1−6.0+0.4
FH to their backhand · return +1−5.1±3.6−2.8−2.3
BH to the middle · rally−5.0±1.8−4.6−0.4

Giovanni Mpetshi Perricard

Favour

ShotEdgeOwnTheirs
BH to their backhand · return +1+3.8±3.1+1.0+2.9
BH to their forehand · return +1+3.7±5.0−0.1+3.8
FH to their forehand · serve +1+2.3±3.1+0.4+1.9
FH to their forehand · return +1+0.9±3.9−1.4+2.3
FH to the middle · rally+0.2±1.8−0.9+1.1
FH to their forehand · rally±0.0±2.6−0.9+0.9

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return +1−6.6±3.7−5.2−1.4
FH slice to the middle · rally−6.2±2.9−4.8−1.4
BH to their forehand · return−5.4±4.0−4.1−1.3
FH to their backhand · rally−4.3±2.4−2.9−1.3
BH slice to the middle · return +1−3.2±2.2−1.5−1.7

Against Giovanni Mpetshi Perricard-like opponents

Reilly Opelka vMatchesServe pts wonReturn pts won
All charted opponents–70.0%27.5%
Players most similar to Giovanni Mpetshi Perricard4 71.1%21.6%
Giovanni Mpetshi Perricard (charted head-to-head)1 79.7%31.9%

Similar by tactical fingerprint: Jiri Lehecka, Ben Shelton, Denis Shapovalov, Alexei Popyrin, Gabriel Diallo, Christopher Eubanks, Tim Van Rijthoven, Vasek Pospisil, Jo Wilfried Tsonga. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head