RallyIQ

Game plan

Alexei Popyrin v Kevin King

Every number combines what Alexei Popyrin does well with what Kevin King allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Alexei Popyrin wins, best of 3 85%90%: 64%–96% · best of 5: 90%
Serve points won 66.8% / 58.6% Alexei / Kevin · tour 63.8%
Strengths only, no similarity priors 85%serve 67.4% / 59.1%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Alexei Popyrin's record against Kevin King's tactical lookalikes and in their charted head-to-heads (lookalikes: −3.8 on serve, +3.0 on return vs expectation (596 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

CareerAlexeiKevin
Direction choice+0.04 ±0.06
better than 69%
−0.05 ±0.05
better than 44%
Shot selection+0.29 ±0.15
better than 79%
+0.49 ±0.15
better than 93%
Execution−0.73 ±0.59
better than 36%
−2.29 ±1.18
better than 1%
Points left on the table2.71 ±0.10
lower than 39%
3.19 ±0.20
lower than 12%

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.

Alexei Popyrin serving

Deuce court

1st serveNowAlexei winsv KevinMatchupOptimal
Wide45%73%76%76.2%±6.859% ▲
Body9%62%62%60.7%±13.10% ▼
T45%78%67%71.0%±7.841% ▼

Optimal v Kevin King: +0.6±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAlexei winsv KevinMatchupOptimal
Wide52%76%76%79.2%±6.951%
Body5%63%64%63.6%±15.00% ▼
T43%74%76%77.4%±6.749% ▲

Optimal v Kevin King: +0.3±0.4 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.6 per 100 first serves in before the returner adjusts.

Kevin King serving

Deuce court

1st serveNowKevin winsv AlexeiMatchupOptimal
Wide43%81%73%81.1%±6.456% ▲
Body12%60%64%60.3%±12.60% ▼
T45%72%75%71.3%±7.444% ▼

Optimal v Alexei Popyrin: +0.9±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +6.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowKevin winsv AlexeiMatchupOptimal
Wide53%75%74%76.5%±6.466% ▲
Body11%65%69%70.6%±12.40% ▼
T37%74%73%75.8%±7.634% ▼

Optimal v Alexei Popyrin: +0.4±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +0.9 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.

Alexei Popyrin returning

1st serve to the forehand

ReturnNowTourOwnv KevinValue
FH through the middle44%+4.3+1.5−5.1+0.7±2.7
FH down the line21%+1.7+1.8−2.5+1.0±4.1
FH crosscourt19%+5.5+3.3−1.9+6.9±4.3
FH slice through the middle11%−4.2−1.3−1.0−6.5±2.3
FH slice down the line4%−4.3−0.6±0.0−4.8±2.1

Lean FH crosscourt: +6.0±3.8 per 100 returns v the current mix (584 returns charted)

1st serve to the backhand

ReturnNowTourOwnv KevinValue
BH through the middle41%+6.4+1.0−2.0+5.4±2.5
BH down the line20%+4.2−1.4+0.3+3.1±4.4
BH slice through the middle15%−4.2+0.8−2.9−6.4±2.4
BH crosscourt13%+8.8+1.6+1.0+11.4±3.6
BH slice crosscourt7%+0.5−3.0−1.7−4.2±2.7

Lean BH crosscourt: +8.8±3.4 per 100 returns v the current mix (633 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv KevinValue
FH through the middle47%−3.5−0.9−0.1−4.5±2.9
FH crosscourt32%−0.2+5.2+0.9+5.8±4.4
FH down the line21%−1.8−4.1+2.2−3.6±4.2

Lean FH crosscourt: +6.8±3.4 per 100 returns v the current mix (139 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv KevinValue
BH through the middle37%−2.9−4.1−4.0−11.0±2.4
BH down the line21%−0.2−1.5−1.9−3.6±4.5
BH crosscourt18%+1.0−3.2−2.1−4.3±3.1
FH through the middle10%−2.9−2.4−0.1−5.3±2.5
FH inside-out9%+1.0−1.3+2.2+1.9±3.4

Lean FH inside-out: +8.1±3.4 per 100 returns v the current mix (463 returns charted)

Kevin King returning

1st serve to the forehand

ReturnNowTourOwnv AlexeiValue
FH through the middle31%+4.3+0.7+1.7+6.6±2.7
FH down the line20%+1.7+0.3+1.7+3.7±4.3
FH slice through the middle20%−4.2−2.1+0.3−6.0±2.3
FH slice down the line14%−4.3±0.0−0.8−5.0±2.9
FH crosscourt10%+5.5−0.1−4.4+1.0±3.9

Lean FH through the middle: +5.7±2.2 per 100 returns v the current mix (132 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AlexeiValue
BH through the middle52%+6.4−4.3+0.5+2.7±2.5
BH slice through the middle14%−4.2−2.2−2.0−8.5±2.4
BH down the line14%+4.2−0.3−0.9+3.0±4.2
BH crosscourt12%+8.8−0.5+1.0+9.3±3.5
BH slice down the line5%−8.4−1.6−3.4−13.4±3.1

Lean BH crosscourt: +8.4±3.4 per 100 returns v the current mix (191 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AlexeiValue
FH down the line37%−1.8−4.4+1.5−4.7±4.4
FH through the middle37%−3.5−1.3+0.3−4.4±2.5
FH crosscourt26%−0.2−0.9−3.4−4.6±3.9

Lean FH through the middle: +0.1±2.5 per 100 returns v the current mix (46 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv AlexeiValue
BH through the middle52%−2.9−0.4−0.4−3.7±2.3
BH crosscourt26%+1.0+0.2+3.2+4.4±3.1
BH down the line22%−0.2+1.8−2.2−0.6±4.1

Lean BH crosscourt: +5.4±2.8 per 100 returns v the current mix (77 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.

Alexei Popyrin

Favour

ShotEdgeOwnTheirs
FH to their forehand · rally+4.0±3.8+3.1+0.9
FH to their forehand · serve +1+3.0±4.5+1.6+1.4
FH to their backhand · rally+0.4±3.3+0.2+0.3
BH to their forehand · rally−0.8±5.2−4.9+4.1
FH to their backhand · return−3.0±5.0−1.3−1.7
BH to their backhand · rally−3.2±3.6−5.0+1.8

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−4.0±4.0−0.8−3.2
BH to the middle · return−3.7±2.9−0.8−2.9
FH to the middle · return−3.6±3.2+1.0−4.6
BH to their backhand · rally−3.2±3.6−5.0+1.8
FH to their backhand · return−3.0±5.0−1.3−1.7

Kevin King

Favour

ShotEdgeOwnTheirs
FH to their backhand · return +1+6.1±5.4+4.0+2.1
FH to the middle · rally+4.5±3.1+1.7+2.8
FH to their backhand · rally+3.1±3.3+3.8−0.7
FH to their forehand · serve +1+2.5±4.8+1.7+0.8
FH to the middle · return−0.2±3.3−0.7+0.6
BH to the middle · rally−0.6±3.0−1.1+0.4

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−3.6±4.4−3.8+0.2
BH to the middle · return−3.0±2.6−2.6−0.4
FH to their forehand · rally−2.7±4.0−4.0+1.3
BH to their backhand · return−2.5±4.2−0.4−2.1
BH to their forehand · rally−2.0±5.6−0.5−1.5

Against Kevin King-like opponents

Alexei Popyrin vMatchesServe pts wonReturn pts won
All charted opponents–63.9%33.5%
Players most similar to Kevin King4 61.8%32.9%

Similar by tactical fingerprint: Learner Tien, Joao Fonseca, Hubert Hurkacz, Kyle Edmund, Fernando Verdasco, Jo Wilfried Tsonga, Roger Federer, James Blake, Robin Soderling. When two players have rarely met, their records against these lookalikes fill the gap.