RallyIQ

Game plan

Kevin King v Juncheng Shang

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

Forecast

Kevin King wins, best of 3 31%90%: 9%–64% · best of 5: 27%
Serve points won 62.7% / 66.7% Kevin / Juncheng · tour 65.7%
Strengths only, no similarity priors 31%serve 62.7% / 66.7%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Kevin King's record against Juncheng Shang's tactical lookalikes and in their charted head-to-heads. 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

CareerKevinJuncheng
Direction choice−0.05 ±0.05
better than 44%
−0.21 ±0.13
better than 13%
Shot selection+0.49 ±0.15
better than 93%
+0.51 ±0.30
better than 94%
Execution−2.29 ±1.18
better than 1%
−0.47 ±0.59
better than 46%
Points left on the table3.19 ±0.20
lower than 12%
3.00 ±0.24
lower than 19%

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.

Kevin King serving

Deuce court

1st serveNowKevin winsv JunchengMatchupOptimal
Wide43%81%70%79.0%±7.848% ▲
Body12%60%65%62.3%±14.80% ▼
T45%72%78%74.7%±8.352% ▲

Optimal v Juncheng Shang: +0.6±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowKevin winsv JunchengMatchupOptimal
Wide53%75%69%71.2%±8.950% ▼
Body11%65%63%64.9%±14.00% ▼
T37%74%73%75.8%±9.050% ▲

Optimal v Juncheng Shang: +0.3±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.6 per 100 first serves in before the returner adjusts.

Juncheng Shang serving

Deuce court

1st serveNowJuncheng winsv KevinMatchupOptimal
Wide35%74%76%77.2%±8.648% ▲
Body13%60%62%59.1%±14.413%
T52%67%67%57.6%±10.139% ▼

Optimal v Kevin King: +0.8±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +12.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJuncheng winsv KevinMatchupOptimal
Wide55%65%76%68.4%±9.855%
Body16%68%64%69.5%±13.83% ▼
T29%72%76%75.8%±9.542% ▲

Optimal v Kevin King: +0.6±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +5.1 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.

Kevin King returning

1st serve to the forehand

ReturnNowTourOwnv JunchengValue
FH through the middle31%+4.3+0.7+1.0+5.9±3.1
FH down the line20%+1.7+0.3−0.2+1.7±4.2
FH slice through the middle20%−4.2−2.1−1.2−7.5±2.2
FH slice down the line14%−4.3±0.0−0.3−4.5±2.7
FH crosscourt10%+5.5−0.1+1.2+6.5±4.0

Lean FH through the middle: +5.4±2.4 per 100 returns v the current mix (132 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JunchengValue
BH through the middle52%+6.4−4.3+3.5+5.6±2.6
BH slice through the middle14%−4.2−2.2+0.2−6.2±2.4
BH down the line14%+4.2−0.3+4.4+8.3±4.5
BH crosscourt12%+8.8−0.5−0.2+8.0±3.5
BH slice down the line5%−8.4−1.6+1.5−8.5±3.0

Lean BH down the line: +4.7±4.2 per 100 returns v the current mix (191 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JunchengValue
FH down the line37%−1.8−4.4−2.2−8.4±4.4
FH through the middle37%−3.5−1.3−0.3−5.0±2.7
FH crosscourt26%−0.2−0.9−0.6−1.7±3.9

Lean FH through the middle: +0.4±2.6 per 100 returns v the current mix (46 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv JunchengValue
BH through the middle52%−2.9−0.4+1.1−2.2±2.5
BH crosscourt26%+1.0+0.2+1.5+2.7±3.1
BH down the line22%−0.2+1.8+0.4+2.0±4.7

Lean BH crosscourt: +2.7±2.9 per 100 returns v the current mix (77 returns charted, inside the 90% margin)

Juncheng Shang returning

1st serve to the forehand

ReturnNowTourOwnv KevinValue
FH through the middle53%+4.3+1.4−5.1+0.6±3.0
FH down the line20%+1.7−0.5−1.9−0.7±4.5
FH crosscourt16%+5.5+1.6−2.5+4.6±4.1
FH slice through the middle7%−4.2−1.0−1.0−6.3±2.0
FH slice crosscourt4%−4.3−0.5±0.0−4.9±1.3

Lean FH crosscourt: +4.3±3.9 per 100 returns v the current mix (166 returns charted)

1st serve to the backhand

ReturnNowTourOwnv KevinValue
BH through the middle46%+6.4+0.8−2.0+5.2±2.8
BH crosscourt26%+8.8+0.5+0.3+9.6±3.6
BH down the line14%+4.2−1.7+1.0+3.5±4.5
BH slice through the middle10%−4.2−1.3−2.9−8.4±2.3
BH slice down the line4%−8.4−0.2−1.7−10.3±2.5

Lean BH crosscourt: +5.6±3.1 per 100 returns v the current mix (175 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv KevinValue
FH through the middle60%−3.5+1.2−0.1−2.4±2.9
FH crosscourt32%−0.2−2.2+2.2−0.2±3.8
FH down the line8%−1.8−1.2+0.9−2.0±3.9

Lean FH crosscourt: +1.4±3.1 per 100 returns v the current mix (65 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv KevinValue
BH through the middle52%−2.9−0.7−4.0−7.6±2.6
BH crosscourt20%+1.0+2.3−1.9+1.4±3.0
BH down the line18%−0.2+1.3−2.1−1.0±4.6
FH inside-in5%+0.6−1.9+2.2+0.8±3.3
FH through the middle5%−2.9+0.4−0.1−2.6±2.0

Lean BH crosscourt: +5.3±2.8 per 100 returns v the current mix (132 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 grass. Each player's grass record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Kevin King

Favour

ShotEdgeOwnTheirs
FH to their backhand · rally+3.1±2.9+2.0+1.1
FH to the middle · rally+1.9±2.4±0.0+1.8
BH to the middle · rally+1.5±2.3−0.7+2.2
BH to their backhand · return+1.3±3.4±0.0+1.3
BH to the middle · return+1.0±2.3−2.7+3.7
BH to their forehand · rally+0.7±4.1−1.1+1.9

Avoid

ShotEdgeOwnTheirs
FH to their forehand · rally−6.1±3.3−5.7−0.4
FH to their backhand · serve +1−4.5±3.7−2.0−2.5
FH to the middle · return−0.8±2.8−0.8±0.0
BH to their backhand · rally−0.7±2.9−1.2+0.5
FH to their backhand · return +1±0.0±4.1+2.3−2.3

Juncheng Shang

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+7.1±3.8+4.6+2.5
BH to their backhand · rally+0.6±2.9−0.6+1.2
FH to their backhand · rally+0.4±2.7+1.0−0.6
FH to their forehand · serve +1−1.3±4.0−1.8+0.5
FH to their forehand · rally−1.6±3.3−1.9+0.4
BH to the middle · return−2.3±2.5+0.7−3.1

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−3.6±4.1−2.7−0.9
FH to their backhand · serve +1−3.3±3.4±0.0−3.3
FH to the middle · return−2.4±2.6+1.6−4.0
BH to the middle · return−2.3±2.5+0.7−3.1
FH to their forehand · rally−1.6±3.3−1.9+0.4

Against Juncheng Shang-like opponents

Kevin King vMatchesServe pts wonReturn pts won
All charted opponents–61.2%36.7%

Similar by tactical fingerprint: Cameron Norrie, Luciano Darderi, Thiago Monteiro, Daniel Elahi Galan, Albert Ramos, Cristian Garin, Federico Delbonis, Pablo Cuevas, Philipp Kohlschreiber, Nicolas Massu. When two players have rarely met, their records against these lookalikes fill the gap.