RallyIQ

Game plan

Pierre Hugues Herbert v Sam Querrey

Every number combines what Pierre Hugues Herbert does well with what Sam Querrey allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Pierre Hugues Herbert wins, best of 3 47%90%: 23%–73% · best of 5: 47%
Serve points won 67.0% / 67.6% Pierre / Sam · tour 63.4%
Strengths only, no similarity priors 42%serve 66.6% / 68.2%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Pierre Hugues Herbert's record against Sam Querrey's tactical lookalikes and in their charted head-to-heads (head-to-head: +5.8 on serve, +7.3 on return vs expectation (254 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

CareerPierreSam
Direction choice+0.23 ±0.09
better than 96%
+0.16 ±0.10
better than 89%
Shot selection+0.64 ±0.24
better than 97%
+0.50 ±0.22
better than 93%
Execution−1.76 ±0.85
better than 6%
−0.88 ±0.95
better than 28%
Points left on the table2.66 ±0.20
lower than 42%
2.35 ±0.18
lower than 79%

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.

Pierre Hugues Herbert serving

Deuce court

1st serveNowPierre winsv SamMatchupOptimal
Wide45%71%74%72.6%±6.637% ▼
Body5%55%62%53.0%±14.30% ▼
T50%79%79%83.1%±5.363% ▲

Optimal v Sam Querrey: +1.4±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +6.3 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowPierre winsv SamMatchupOptimal
Wide56%77%77%80.7%±5.669% ▲
Body6%69%70%75.5%±10.96%
T38%71%74%73.2%±7.325% ▼

Optimal v Sam Querrey: +0.6±0.8 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.

Sam Querrey serving

Deuce court

1st serveNowSam winsv PierreMatchupOptimal
Wide46%76%74%77.0%±5.838% ▼
Body5%67%66%69.7%±12.90% ▼
T49%82%75%82.6%±5.262% ▲

Optimal v Pierre Hugues Herbert: +0.8±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +3.2 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowSam winsv PierreMatchupOptimal
Wide51%81%73%81.3%±5.664% ▲
Body6%62%73%71.7%±12.80% ▼
T44%74%73%75.1%±6.836% ▼

Optimal v Pierre Hugues Herbert: +0.9±0.7 per 100 first serves (faults included) over the current mix. 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.

Pierre Hugues Herbert returning

1st serve to the forehand

ReturnNowTourOwnv SamValue
FH through the middle33%+4.3−3.2−2.7−1.6±2.9
FH crosscourt22%+5.5−2.4+0.3+3.4±4.4
FH down the line20%+1.7−0.6−2.8−1.7±4.5
FH slice crosscourt11%−4.3+1.4+1.3−1.6±2.7
FH slice through the middle11%−4.2−0.5+2.9−1.9±2.3

Lean FH crosscourt: +4.0±3.7 per 100 returns v the current mix (255 returns charted)

1st serve to the backhand

ReturnNowTourOwnv SamValue
BH through the middle34%+6.4−2.2−1.0+3.3±2.8
BH crosscourt21%+8.8+0.7−0.5+9.0±3.6
BH down the line15%+4.2−0.9+2.4+5.7±4.4
BH slice crosscourt13%+0.5+0.6+1.0+2.1±3.0
BH slice through the middle13%−4.2−0.4+0.8−3.9±2.5

Lean BH crosscourt: +5.6±3.1 per 100 returns v the current mix (271 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv SamValue
FH through the middle45%−3.5+0.7+0.5−2.2±2.8
FH crosscourt30%−0.2+0.1+2.9+2.7±4.2
FH down the line25%−1.8−1.4−0.6−3.8±4.5

Lean FH crosscourt: +3.9±3.4 per 100 returns v the current mix (71 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv SamValue
BH crosscourt35%+1.0−3.3±0.0−2.3±3.2
BH through the middle34%−2.9−3.0−1.3−7.2±2.4
BH down the line20%−0.2−3.5+0.4−3.3±4.9
FH through the middle6%−2.9+0.3+0.5−2.0±2.1
FH inside-in4%+0.6−0.3+2.9+3.1±3.7

Lean BH crosscourt: +1.6±2.4 per 100 returns v the current mix (161 returns charted, inside the 90% margin)

Sam Querrey returning

1st serve to the forehand

ReturnNowTourOwnv PierreValue
FH through the middle45%+4.3−0.5+0.3+4.0±2.7
FH crosscourt25%+5.5−0.7−2.6+2.1±4.3
FH down the line15%+1.7+0.8−0.2+2.3±4.5
FH slice through the middle9%−4.2±0.0−1.0−5.2±2.2
FH slice down the line4%−4.3+1.8−0.6−3.1±2.4

Lean FH through the middle: +2.0±2.0 per 100 returns v the current mix (365 returns charted)

1st serve to the backhand

ReturnNowTourOwnv PierreValue
BH through the middle40%+6.4−1.0−4.2+1.2±2.7
BH crosscourt33%+8.8+0.9−1.1+8.6±3.5
BH slice through the middle10%−4.2+0.8−2.5−5.9±2.5
BH down the line9%+4.2+1.2+0.3+5.8±4.5
BH slice crosscourt5%+0.5−1.8−0.1−1.3±2.8

Lean BH crosscourt: +5.6±2.6 per 100 returns v the current mix (297 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv PierreValue
FH through the middle49%−3.5−1.1−3.0−7.5±2.9
FH crosscourt34%−0.2+0.8−1.3−0.7±4.3
FH down the line18%−1.8+0.1−3.1−4.9±4.2

Lean FH crosscourt: +4.0±3.3 per 100 returns v the current mix (80 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv PierreValue
BH crosscourt40%+1.0+2.0−1.0+2.1±3.2
BH through the middle37%−2.9−0.2−3.4−6.6±2.5
BH down the line19%−0.2−0.8+0.8−0.2±4.9
FH through the middle3%−2.9+0.7−3.0−5.2±2.0

Lean BH crosscourt: +3.9±2.3 per 100 returns v the current mix (179 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.

Pierre Hugues Herbert

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+5.4±3.8+3.0+2.3
FH to their forehand · return +1+3.5±4.2−0.3+3.8
FH to their backhand · return +1+2.7±4.1−0.3+3.0
BH to their backhand · serve +1+1.8±3.3+0.7+1.1
FH to their backhand · serve +1+1.5±3.4+1.5±0.0
BH slice to their backhand · rally+1.1±2.5+0.8+0.4

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−4.9±3.9−2.5−2.4
BH to the middle · return−4.6±2.2−2.0−2.6
FH to the middle · return−3.5±2.4−1.5−1.9
BH to the middle · rally−3.5±2.3−2.9−0.6
BH to their backhand · return−2.9±3.1−1.9−1.0

Sam Querrey

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+4.0±3.3+1.5+2.4
BH to their backhand · return +1+2.8±3.3+0.1+2.7
BH to their forehand · return+0.5±4.5−0.3+0.7
BH to their backhand · return+0.2±2.8+1.8−1.6
FH to the middle · serve +1−0.3±2.8−2.7+2.4
BH to their backhand · rally−0.7±2.5−1.1+0.5

Avoid

ShotEdgeOwnTheirs
BH to the middle · return−4.7±2.1+0.4−5.1
FH to their forehand · serve +1−3.5±3.4−1.8−1.7
BH to their forehand · rally−3.5±4.4−2.4−1.1
FH to the middle · return−3.0±2.3−1.8−1.2
FH to their backhand · return−2.5±4.1−0.7−1.8

Against Sam Querrey-like opponents

Pierre Hugues Herbert vMatchesServe pts wonReturn pts won
All charted opponents–65.0%30.5%
Sam Querrey (charted head-to-head)1 72.4%39.1%

Similar by tactical fingerprint: Joao Fonseca, Sebastian Korda, Alexei Popyrin, Zizou Bergs, Quentin Halys, Marin Cilic, Roman Safiullin, Lucas Pouille, Lloyd Harris, Jo Wilfried Tsonga. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head