RallyIQ

Game plan

Jenson Brooksby v Gilles Simon

Every number combines what Jenson Brooksby does well with what Gilles Simon allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Jenson Brooksby wins, best of 3 39%90%: 24%–56% · best of 5: 36%
Serve points won 57.7% / 59.9% Jenson / Gilles · tour 63.8%
Strengths only, no similarity priors 44%serve 58.3% / 59.3%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Jenson Brooksby's record against Gilles Simon's tactical lookalikes and in their charted head-to-heads (lookalikes: −9.8 on serve, −9.2 on return vs expectation (192 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

CareerJensonGilles
Direction choice−0.07 ±0.11
better than 37%
−0.03 ±0.06
better than 49%
Shot selection−0.31 ±0.11
better than 21%
−0.07 ±0.08
better than 44%
Execution+0.53 ±0.33
better than 84%
+1.17 ±0.30
better than 97%
Points left on the table2.27 ±0.16
lower than 86%
2.26 ±0.09
lower than 88%

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.

Jenson Brooksby serving

Deuce court

1st serveNowJenson winsv GillesMatchupOptimal
Wide45%70%72%69.2%±4.658% ▲
Body16%56%55%47.2%±8.43% ▼
T39%65%76%65.6%±5.439%

Optimal v Gilles Simon: +1.1±0.8 per 100 first serves (faults included) over the current mix. Serving wide every time would read +5.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJenson winsv GillesMatchupOptimal
Wide49%71%70%68.2%±5.149%
Body14%62%62%60.9%±9.71% ▼
T37%66%69%62.7%±5.850% ▲

Optimal v Gilles Simon: +0.4±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.1 per 100 first serves in before the returner adjusts.

Gilles Simon serving

Deuce court

1st serveNowGilles winsv JensonMatchupOptimal
Wide53%66%73%65.8%±5.046% ▼
Body7%57%67%61.8%±9.30% ▼
T41%72%76%73.3%±5.154% ▲

Optimal v Jenson Brooksby: +0.2±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowGilles winsv JensonMatchupOptimal
Wide40%67%75%69.6%±5.653% ▲
Body9%64%60%61.1%±9.58%
T52%65%66%58.3%±5.439% ▼

Optimal v Jenson Brooksby: +0.7±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +6.6 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.

Jenson Brooksby returning

1st serve to the forehand

ReturnNowTourOwnv GillesValue
FH through the middle52%+4.3+1.1+3.6+9.0±1.9
FH crosscourt21%+5.5+1.1+3.9+10.5±3.6
FH down the line19%+1.7−2.2+2.8+2.3±3.7
FH slice through the middle5%−4.2−1.2+0.9−4.5±2.2
FH slice down the line2%−4.3+1.0−0.1−3.4±2.8

Lean FH crosscourt: +3.5±3.1 per 100 returns v the current mix (544 returns charted)

1st serve to the backhand

ReturnNowTourOwnv GillesValue
BH through the middle45%+6.4+1.8+2.5+10.7±2.1
BH crosscourt36%+8.8+1.5+4.0+14.4±3.0
BH down the line7%+4.2+0.2+2.3+6.7±4.5
BH slice through the middle6%−4.2+0.3+3.5−0.3±2.2
BH slice crosscourt4%+0.5−2.7+1.8−0.4±2.8

Lean BH crosscourt: +4.0±2.2 per 100 returns v the current mix (439 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv GillesValue
FH through the middle51%−3.5−0.8−0.4−4.7±2.6
FH down the line26%−1.8+1.1+1.5+0.8±4.3
FH crosscourt20%−0.2+1.4+1.7+2.9±4.0
FH slice through the middle3%−12.7−0.5±0.0−13.1±1.0

Lean FH crosscourt: +4.9±3.6 per 100 returns v the current mix (144 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv GillesValue
BH crosscourt43%+1.0+0.3+2.1+3.4±2.6
BH through the middle43%−2.9+1.0+2.4+0.5±2.1
BH down the line14%−0.2+5.7+1.3+6.9±4.5

Lean BH down the line: +4.2±4.1 per 100 returns v the current mix (259 returns charted)

Gilles Simon returning

1st serve to the forehand

ReturnNowTourOwnv JensonValue
FH through the middle48%+4.3+2.2+2.3+8.7±1.9
FH crosscourt17%+5.5+2.3−1.3+6.5±3.8
FH down the line15%+1.7+1.1+1.7+4.5±4.1
FH slice through the middle12%−4.2+0.1−1.4−5.6±2.2
FH slice down the line5%−4.3−3.6−0.1−8.0±2.9

Lean FH through the middle: +3.9±1.4 per 100 returns v the current mix (1104 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JensonValue
BH through the middle44%+6.4+3.1+2.8+12.3±1.8
BH crosscourt32%+8.8+2.3+1.8+12.8±2.8
BH down the line12%+4.2+3.3+0.2+7.7±4.5
BH slice through the middle5%−4.2−0.4±0.0−4.6±2.5
BH slice crosscourt4%+0.5−4.2−2.2−5.9±3.0

Lean BH crosscourt: +3.1±2.2 per 100 returns v the current mix (935 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JensonValue
FH through the middle55%−3.5+1.7−1.1−2.8±2.5
FH crosscourt34%−0.2−1.1+1.2−0.1±4.2
FH down the line10%−1.8−0.5+2.8+0.5±4.6

Lean FH down the line: +2.0±4.6 per 100 returns v the current mix (294 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv JensonValue
BH crosscourt44%+1.0+2.0+1.2+4.2±2.5
BH through the middle36%−2.9+1.5+2.5+1.1±1.9
BH down the line11%−0.2−0.7+1.7+0.8±4.9
FH through the middle5%−2.9+0.8−1.1−3.1±2.3
FH inside-in3%+0.6+1.0+1.2+2.8±4.1

Lean BH crosscourt: +1.9±1.7 per 100 returns v the current mix (719 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.

Jenson Brooksby

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+7.1±5.2+4.9+2.2
FH to the middle · return+5.5±2.0+1.4+4.1
FH to their forehand · return+5.5±4.4+1.6+3.9
BH to the middle · return+4.6±1.9+2.5+2.1
BH to the middle · serve +1+4.2±2.7+3.0+1.2
BH to the middle · return +1+4.1±2.7+1.5+2.6

Avoid

ShotEdgeOwnTheirs
BH to their forehand · return +1−5.9±6.4−0.8−5.2
FH to their backhand · return +1−4.8±4.4−5.7+0.8
FH to their backhand · serve +1−2.3±2.9−2.9+0.6
FH to their backhand · rally−0.9±1.8−1.7+0.8
FH volley to their forehand · rally−0.9±8.0+0.8−1.7

Gilles Simon

Favour

ShotEdgeOwnTheirs
BH to the middle · return+7.4±1.7+3.4+4.0
FH to their backhand · return +1+5.4±4.3+2.5+3.0
BH to their backhand · return+4.9±2.6+3.6+1.4
FH to their backhand · return+4.8±4.4+1.6+3.3
FH to their backhand · serve +1+4.8±2.9+1.2+3.6
FH to the middle · return+4.6±1.9+2.6+2.0

Avoid

ShotEdgeOwnTheirs
BH to their forehand · return +1−4.4±5.7+0.2−4.7
FH to their forehand · return +1−2.9±3.9+0.8−3.7
BH slice to the middle · rally−2.0±2.9−3.0+1.0
FH slice to the middle · return−1.5±3.0−0.4−1.1
BH slice to their backhand · rally−1.3±2.9−3.6+2.2

Against Gilles Simon-like opponents

Jenson Brooksby vMatchesServe pts wonReturn pts won
All charted opponents–60.5%37.4%
Players most similar to Gilles Simon2 48.9%28.0%

Similar by tactical fingerprint: Tomas Martin Etcheverry, Alex De Minaur, Daniil Medvedev, Miomir Kecmanovic, Diego Schwartzman, Andy Murray, John Millman, Hyeon Chung, Aaron Krickstein. When two players have rarely met, their records against these lookalikes fill the gap.