RallyIQ

Game plan

Lloyd Harris v Felix Auger Aliassime

Every number combines what Lloyd Harris does well with what Felix Auger Aliassime allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Lloyd Harris wins, best of 3 40%90%: 16%–68% · best of 5: 37%
Serve points won 63.3% / 65.4% Lloyd / Felix · tour 63.4%
Strengths only, no similarity priors 36%serve 62.8% / 65.7%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Lloyd Harris's record against Felix Auger Aliassime's tactical lookalikes and in their charted head-to-heads (lookalikes: +8.7 on serve, +4.3 on return vs expectation (189 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

CareerLloydFelix
Direction choice+0.06 ±0.15
better than 73%
+0.01 ±0.05
better than 60%
Shot selection+0.29 ±0.09
better than 79%
+0.50 ±0.08
better than 93%
Execution−1.26 ±1.22
better than 17%
−0.79 ±0.31
better than 33%
Points left on the table2.49 ±0.18
lower than 63%
2.50 ±0.09
lower than 60%

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.

Lloyd Harris serving

Deuce court

1st serveNowLloyd winsv FelixMatchupOptimal
Wide52%73%75%75.0%±6.266% ▲
Body1%62%64%62.4%±14.40% ▼
T46%77%74%75.8%±6.834% ▼

Optimal v Felix Auger Aliassime: +0.4±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +0.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowLloyd winsv FelixMatchupOptimal
Wide55%75%72%73.4%±6.545% ▼
Body3%61%65%63.9%±14.40% ▼
T42%74%74%76.0%±6.955% ▲

Optimal v Felix Auger Aliassime: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.8 per 100 first serves in before the returner adjusts.

Felix Auger Aliassime serving

Deuce court

1st serveNowFelix winsv LloydMatchupOptimal
Wide50%78%65%71.1%±6.345% ▼
Body8%66%65%68.1%±10.80% ▼
T42%78%83%85.2%±5.455% ▲

Optimal v Lloyd Harris: +1.0±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +8.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowFelix winsv LloydMatchupOptimal
Wide46%75%74%76.1%±6.040% ▼
Body6%63%67%67.5%±12.20% ▼
T47%76%68%72.8%±7.260% ▲

Optimal v Lloyd Harris: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.2 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.

Lloyd Harris returning

1st serve to the forehand

ReturnNowTourOwnv FelixValue
FH through the middle53%+4.3+4.2−0.2+8.2±2.4
FH down the line30%+1.7+4.3−3.3+2.6±3.8
FH crosscourt11%+5.5−1.5−0.6+3.4±3.6
FH slice through the middle6%−4.2+0.9−1.3−4.6±1.8

Lean FH through the middle: +3.0±1.7 per 100 returns v the current mix (150 returns charted)

1st serve to the backhand

ReturnNowTourOwnv FelixValue
BH crosscourt31%+8.8+2.2−0.6+10.4±3.0
BH through the middle30%+6.4+0.9+0.6+7.9±2.3
BH slice through the middle19%−4.2+2.6−2.0−3.6±2.2
BH slice crosscourt10%+0.5+0.9−2.6−1.2±2.6
BH down the line7%+4.2−1.1−1.4+1.7±3.7

Lean BH crosscourt: +5.9±2.2 per 100 returns v the current mix (162 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv FelixValue
FH through the middle52%−3.5+1.7−0.3−2.1±2.3
FH down the line33%−1.8+2.6−2.8−2.0±3.9
FH crosscourt15%−0.2−2.9−5.6−8.7±3.3

Lean FH down the line: +1.1±2.9 per 100 returns v the current mix (46 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv FelixValue
BH through the middle43%−2.9+1.4+0.1−1.4±2.0
BH crosscourt39%+1.0−0.5−1.5−1.0±2.6
BH down the line11%−0.2−2.3+0.3−2.2±4.0
FH inside-out6%+1.0+1.3−2.8−0.5±2.6

Lean BH crosscourt: +0.3±1.9 per 100 returns v the current mix (79 returns charted, inside the 90% margin)

Felix Auger Aliassime returning

1st serve to the forehand

ReturnNowTourOwnv LloydValue
FH through the middle50%+4.3−0.6+0.9+4.6±2.4
FH down the line21%+1.7−0.9−0.2+0.6±3.7
FH crosscourt20%+5.5−1.5−2.2+1.8±3.4
FH slice through the middle6%−4.2−1.3−0.2−5.7±2.2
FH slice down the line2%−4.3+0.1−0.7−4.9±2.8

Lean FH through the middle: +2.4±1.6 per 100 returns v the current mix (1741 returns charted)

1st serve to the backhand

ReturnNowTourOwnv LloydValue
BH through the middle39%+6.4+1.5+1.5+9.5±2.3
BH crosscourt34%+8.8+0.1+2.1+11.0±2.8
BH slice through the middle11%−4.2−0.9+0.7−4.4±2.2
BH down the line7%+4.2+1.4−4.4+1.2±3.9
BH slice crosscourt6%+0.5−1.8−0.4−1.7±2.7

Lean BH crosscourt: +4.1±2.1 per 100 returns v the current mix (2015 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv LloydValue
FH through the middle47%−3.5−0.1+1.6−2.0±2.7
FH crosscourt30%−0.2−0.5−0.1−0.9±4.1
FH down the line19%−1.8−2.0−1.5−5.2±4.7
FH slice through the middle2%−12.7+0.3±0.0−12.4±1.2
FH slice down the line1%−9.4+0.1±0.0−9.4±1.4

Lean FH crosscourt: +1.7±3.3 per 100 returns v the current mix (403 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv LloydValue
BH crosscourt36%+1.0−3.2+0.6−1.5±2.7
BH through the middle34%−2.9−1.3−1.0−5.2±2.1
FH through the middle9%−2.9−0.2+1.6−1.5±2.4
BH down the line8%−0.2+2.0−0.3+1.5±4.5
FH inside-in6%+0.6+1.4−0.1+1.8±4.2

Lean FH inside-in: +4.1±4.2 per 100 returns v the current mix (1299 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.

Lloyd Harris

Favour

ShotEdgeOwnTheirs
BH to their backhand · return +1+3.2±2.8+2.5+0.7
FH to the middle · return+3.2±2.1+3.7−0.5
BH to their backhand · rally+1.8±2.0+1.0+0.8
BH to the middle · return+1.4±2.0+1.3+0.1
FH to their backhand · return+0.6±3.3+3.8−3.2
BH to the middle · rally+0.4±1.8−0.4+0.8

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−6.5±3.6−6.1−0.4
FH to their backhand · serve +1−3.7±2.9−2.9−0.8
FH to their backhand · rally−3.2±2.4−2.8−0.4
BH to their backhand · serve +1−2.7±2.7−2.2−0.6
FH to their forehand · return +1−2.1±3.6−2.4+0.3

Felix Auger Aliassime

Favour

ShotEdgeOwnTheirs
BH slice to their backhand · rally+2.1±2.2−0.6+2.8
FH to the middle · rally+1.5±1.9−1.1+2.6
BH to their backhand · return+1.1±2.6−1.1+2.2
BH to the middle · return+1.1±2.0+0.6+0.5
FH to the middle · return+0.6±2.2−0.4+1.0
BH to the middle · rally+0.3±1.8−0.1+0.4

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−3.2±3.3−1.5−1.6
BH to their backhand · serve +1−2.3±2.8−1.3−1.0
FH to their backhand · rally−1.2±2.4−1.0−0.3
FH to their forehand · serve +1−1.1±3.2+0.5−1.6
BH to their backhand · rally−0.9±2.1−2.0+1.1

Against Felix Auger Aliassime-like opponents

Lloyd Harris vMatchesServe pts wonReturn pts won
All charted opponents–61.6%35.7%
Players most similar to Felix Auger Aliassime1 69.7%41.0%

Similar by tactical fingerprint: Casper Ruud, Stefanos Tsitsipas, Arthur Fils, Tommy Paul, Alexei Popyrin, Zizou Bergs, Thanasi Kokkinakis, J J Wolf, Leonardo Mayer. When two players have rarely met, their records against these lookalikes fill the gap.