RallyIQ

Game plan

Nick Kyrgios v Sjeng Schalken

Every number combines what Nick Kyrgios does well with what Sjeng Schalken allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Nick Kyrgios wins, best of 3 76%90%: 55%–90% · best of 5: 81%
Serve points won 72.8% / 66.7% Nick / Sjeng · tour 65.7%
Strengths only, no similarity priors 76%serve 72.8% / 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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Nick Kyrgios's record against Sjeng Schalken'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

CareerNickSjeng
Direction choice−0.04 ±0.06
better than 46%
+0.09 ±0.29
better than 79%
Shot selection−0.09 ±0.06
better than 41%
−0.16 ±0.30
better than 32%
Execution+0.99 ±0.32
better than 95%
−0.07 ±1.08
better than 65%
Points left on the table2.66 ±0.12
lower than 44%
2.39 ±0.60
lower than 74%

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.

Nick Kyrgios serving

Deuce court

1st serveNowNick winsv SjengMatchupOptimal
Wide38%77%76%79.5%±6.028% ▼
Body3%62%71%70.0%±13.10% ▼
T59%83%81%87.8%±3.972% ▲

Optimal v Sjeng Schalken: +0.8±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +3.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowNick winsv SjengMatchupOptimal
Wide46%79%77%82.3%±5.859% ▲
Body5%59%69%65.9%±12.90% ▼
T49%75%80%82.5%±5.541% ▼

Optimal v Sjeng Schalken: +0.4±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +0.9 per 100 first serves in before the returner adjusts.

Sjeng Schalken serving

Deuce court

1st serveNowSjeng winsv NickMatchupOptimal
Wide51%72%81%80.9%±4.764% ▲
Body9%57%65%58.3%±11.20% ▼
T40%65%78%68.4%±6.736% ▼

Optimal v Nick Kyrgios: +1.4±0.7 per 100 first serves (faults included) over the current mix. Serving wide every time would read +7.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowSjeng winsv NickMatchupOptimal
Wide54%72%80%79.4%±5.367% ▲
Body10%64%70%71.1%±10.10% ▼
T36%66%74%68.0%±7.433% ▼

Optimal v Nick Kyrgios: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.9 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.

Nick Kyrgios returning

1st serve to the forehand

ReturnNowTourOwnv SjengValue
FH through the middle51%+4.3+0.9−0.8+4.4±2.3
FH down the line19%+1.7+1.6−1.7+1.5±3.8
FH crosscourt13%+5.5+2.3−6.5+1.4±3.9
FH slice through the middle12%−4.2+2.2+2.5+0.5±2.0
FH slice down the line4%−4.3+3.5+1.1+0.3±2.6

Lean FH through the middle: +1.6±1.5 per 100 returns v the current mix (1842 returns charted)

1st serve to the backhand

ReturnNowTourOwnv SjengValue
BH through the middle44%+6.4+2.4+3.3+12.1±2.2
BH crosscourt27%+8.8+2.1±0.0+10.9±3.0
BH slice through the middle12%−4.2+1.3+2.2−0.7±2.3
BH down the line7%+4.2+0.4+0.8+5.4±4.4
BH slice crosscourt5%+0.5+0.2+3.2+3.9±3.0

Lean BH through the middle: +3.4±1.5 per 100 returns v the current mix (1682 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv SjengValue
FH through the middle53%−3.5+0.1+0.3−3.1±2.4
FH down the line20%−1.8+1.5−0.1−0.4±4.5
FH crosscourt17%−0.2+1.4+2.0+3.2±4.0
FH slice through the middle3%−12.7+0.5±0.0−12.2±1.5
BH through the middle2%+0.1+0.8+0.3+1.3±1.8

Lean FH crosscourt: +4.8±3.6 per 100 returns v the current mix (593 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv SjengValue
BH crosscourt38%+1.0+1.3−3.7−1.4±2.7
BH through the middle38%−2.9−0.1+0.3−2.7±2.0
BH down the line15%−0.2+1.8+2.2+3.8±4.0
FH through the middle2%−2.9+0.8+0.3−1.8±2.3
FH inside-in2%+0.6−1.3+2.0+1.2±4.0

Lean BH down the line: +5.0±3.6 per 100 returns v the current mix (1256 returns charted)

Sjeng Schalken returning

1st serve to the forehand

ReturnNowTourOwnv NickValue
FH through the middle38%+4.3−4.3−0.2−0.3±2.4
FH down the line31%+1.7−2.9+1.5+0.3±3.9
FH crosscourt18%+5.5+1.8+0.7+8.0±3.7
FH slice through the middle7%−4.2+0.5+3.1−0.6±1.6
FH slice down the line6%−4.3+0.7+3.3−0.2±2.6

Lean FH crosscourt: +6.6±3.4 per 100 returns v the current mix (120 returns charted)

1st serve to the backhand

ReturnNowTourOwnv NickValue
BH slice through the middle34%−4.2+0.1+0.8−3.3±2.0
BH through the middle17%+6.4−0.1+1.2+7.5±2.1
BH slice crosscourt14%+0.5−0.1+0.4+0.8±2.5
BH slice down the line13%−8.4−0.8+0.4−8.9±3.2
BH down the line12%+4.2+1.2+1.1+6.6±3.9

Lean BH through the middle: +6.7±2.0 per 100 returns v the current mix (122 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv NickValue
FH through the middle43%−3.5+0.7+0.6−2.1±2.3
FH down the line29%−1.8−2.3−0.2−4.3±4.0
FH crosscourt28%−0.2−2.5−4.4−7.2±3.9

Lean FH through the middle: +2.1±2.1 per 100 returns v the current mix (65 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv NickValue
BH through the middle44%−2.9+0.1+1.5−1.3±2.0
BH crosscourt22%+1.0−0.8+1.3+1.6±2.6
BH down the line18%−0.2−3.2+3.9+0.5±4.4
BH slice through the middle9%−11.3−1.9−1.7−14.8±2.0
BH slice crosscourt7%−4.0+1.3−1.6−4.3±2.0

Lean BH crosscourt: +3.4±2.4 per 100 returns v the current mix (119 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.

Nick Kyrgios

Favour

ShotEdgeOwnTheirs
BH to the middle · return+7.5±3.1+2.2+5.3
BH slice to the middle · return+5.2±3.5+3.4+1.8
FH to their forehand · rally+3.2±3.6+0.8+2.4
FH to the middle · return+2.5±3.3+1.6+0.8
BH slice to their backhand · return+2.0±4.4−0.7+2.7
FH to their forehand · return+1.7±6.4+3.2−1.5

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return +1−4.1±6.0−3.8−0.3
FH to their backhand · rally−3.8±3.8−3.5−0.3
BH to their backhand · return +1−3.0±5.2−3.1+0.1
BH slice to their backhand · rally−2.2±3.6−4.4+2.2
FH to their forehand · serve +1−1.5±5.2+1.2−2.7

Sjeng Schalken

Favour

ShotEdgeOwnTheirs
BH to their forehand · serve +1+6.6±6.4+0.7+6.0
FH to their backhand · serve +1+5.0±4.8+0.7+4.3
FH to their forehand · serve +1+2.5±4.7+0.5+2.0
FH to the middle · rally+2.2±3.4+0.1+2.0
FH to their forehand · rally+2.1±3.6±0.0+2.1
BH to the middle · rally+1.6±3.0+0.6+1.0

Avoid

ShotEdgeOwnTheirs
BH to the middle · return−3.1±3.4−5.5+2.3
BH to their backhand · serve +1−3.1±4.5−3.1±0.0
FH to their backhand · return−2.8±6.0−4.5+1.7
FH to the middle · return−1.8±3.7−3.9+2.1
BH to their forehand · rally−1.8±5.0+0.4−2.2

Against Sjeng Schalken-like opponents

Nick Kyrgios vMatchesServe pts wonReturn pts won
All charted opponents–69.6%31.7%