RallyIQ

Game plan

Nick Kyrgios v Zhizhen Zhang

Every number combines what Nick Kyrgios does well with what Zhizhen Zhang 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 78%90%: 58%–91% · best of 5: 83%
Serve points won 72.3% / 65.7% Nick / Zhizhen · tour 63.4%
Strengths only, no similarity priors 77%serve 72.1% / 65.8%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Zhizhen Zhang's tactical lookalikes and in their charted head-to-heads (lookalikes: +1.0 on serve, +1.1 on return vs expectation (491 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

CareerNickZhizhen
Direction choice−0.04 ±0.06
better than 46%
−0.06 ±0.09
better than 41%
Shot selection−0.09 ±0.06
better than 41%
+0.03 ±0.20
better than 54%
Execution+0.99 ±0.32
better than 95%
−0.36 ±0.66
better than 51%
Points left on the table2.66 ±0.12
lower than 44%
2.50 ±0.14
lower than 61%

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.

Structural compatibility

Expected edge per 100 rally shots from style alone: Nick Kyrgios −0.20, Zhizhen Zhang +0.27. Each player's shot mix weighted by their own skill with each shot and by how much the other gives up against it. This is why some rankings gaps don't hold in a given matchup.

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 ZhizhenMatchupOptimal
Wide38%77%81%84.3%±3.451% ▲
Body3%62%65%64.3%±10.70% ▼
T59%83%77%84.7%±3.449% ▼

Optimal v Zhizhen Zhang: +0.5±0.5 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +0.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowNick winsv ZhizhenMatchupOptimal
Wide46%79%78%83.5%±3.459% ▲
Body5%59%67%63.5%±11.30% ▼
T49%75%77%80.0%±4.341% ▼

Optimal v Zhizhen Zhang: +0.6±0.5 per 100 first serves (faults included) over the current mix. Serving wide every time would read +2.6 per 100 first serves in before the returner adjusts.

Zhizhen Zhang serving

Deuce court

1st serveNowZhizhen winsv NickMatchupOptimal
Wide43%72%81%81.0%±3.756% ▲
Body7%69%65%70.8%±8.70% ▼
T50%76%78%78.5%±4.044% ▼

Optimal v Nick Kyrgios: +0.8±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +2.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowZhizhen winsv NickMatchupOptimal
Wide44%69%80%76.7%±4.638% ▼
Body8%57%70%64.5%±9.40% ▼
T49%75%74%76.8%±4.462% ▲

Optimal v Nick Kyrgios: +0.7±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +1.0 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 ZhizhenValue
FH through the middle51%+4.3+0.9−0.6+4.5±2.0
FH down the line19%+1.7+1.6+0.6+3.8±3.8
FH crosscourt13%+5.5+2.3−0.8+7.0±3.9
FH slice through the middle12%−4.2+2.2−1.6−3.6±2.1
FH slice down the line4%−4.3+3.5−0.4−1.1±2.8

Lean FH crosscourt: +3.6±3.6 per 100 returns v the current mix (1842 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv ZhizhenValue
BH through the middle44%+6.4+2.4−0.4+8.4±2.0
BH crosscourt27%+8.8+2.1+0.7+11.6±2.9
BH slice through the middle12%−4.2+1.3−0.9−3.8±2.2
BH down the line7%+4.2+0.4+1.2+5.9±4.5
BH slice crosscourt5%+0.5+0.2−2.3−1.6±3.0

Lean BH crosscourt: +5.1±2.3 per 100 returns v the current mix (1682 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ZhizhenValue
FH through the middle53%−3.5+0.1−1.1−4.5±2.4
FH down the line20%−1.8+1.5−1.4−1.7±4.5
FH crosscourt17%−0.2+1.4+2.3+3.5±4.3
FH slice through the middle3%−12.7+0.5±0.0−12.2±1.5
BH through the middle2%+0.1+0.8−0.7+0.2±1.7

Lean FH crosscourt: +6.0±3.9 per 100 returns v the current mix (593 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv ZhizhenValue
BH crosscourt38%+1.0+1.3−0.5+1.9±2.4
BH through the middle38%−2.9−0.1−0.7−3.7±1.8
BH down the line15%−0.2+1.8+1.6+3.2±4.6
FH through the middle2%−2.9+0.8−1.1−3.2±2.3
FH inside-in2%+0.6−1.3+2.3+1.5±4.3

Lean BH down the line: +3.7±4.0 per 100 returns v the current mix (1256 returns charted, inside the 90% margin)

Zhizhen Zhang returning

1st serve to the forehand

ReturnNowTourOwnv NickValue
FH through the middle40%+4.3+0.5−0.2+4.5±2.2
FH crosscourt23%+5.5±0.0+0.7+6.2±3.9
FH slice through the middle14%−4.2−0.2+3.1−1.3±2.0
FH down the line13%+1.7−5.0+1.5−1.8±3.9
FH slice crosscourt6%−4.3−2.7+2.8−4.2±2.7

Lean FH crosscourt: +3.7±3.1 per 100 returns v the current mix (342 returns charted)

1st serve to the backhand

ReturnNowTourOwnv NickValue
BH through the middle37%+6.4+1.7+1.2+9.3±2.1
BH crosscourt27%+8.8+1.6+0.6+11.0±3.0
BH slice through the middle12%−4.2−1.2+0.8−4.5±2.0
BH slice crosscourt11%+0.5+0.9+0.4+1.8±2.7
BH down the line9%+4.2+0.2+1.1+5.5±4.2

Lean BH crosscourt: +4.8±2.4 per 100 returns v the current mix (368 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv NickValue
FH through the middle45%−3.5−2.6+0.6−5.4±2.4
FH crosscourt35%−0.2+0.8−4.4−3.8±4.1
FH down the line20%−1.8−0.8−0.2−2.8±4.1

Lean FH down the line: +1.5±3.7 per 100 returns v the current mix (100 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv NickValue
BH through the middle54%−2.9+2.0+1.5+0.6±1.8
BH crosscourt38%+1.0+1.3+1.3+3.7±2.6
BH down the line7%−0.2−1.2+3.9+2.5±4.4

Lean BH crosscourt: +1.8±1.9 per 100 returns v the current mix (268 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.

Nick Kyrgios

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+2.7±2.7+1.0+1.8
FH to their forehand · rally+2.7±2.0−0.7+3.4
BH to their forehand · return+2.2±3.7+0.5+1.7
FH to their forehand · return+2.1±3.7+1.1+0.9
FH to their backhand · serve +1+2.0±2.4+1.0+0.9
FH to the middle · return +1+1.8±2.2−0.5+2.3

Avoid

ShotEdgeOwnTheirs
BH slice to the middle · rally−3.5±2.0−2.2−1.3
BH to their forehand · rally−3.4±3.2−1.5−1.9
FH to the middle · rally−3.3±1.6−1.6−1.7
BH to the middle · serve +1−3.3±2.2−3.0−0.2
BH slice to their backhand · rally−3.1±2.2−3.9+0.8

Zhizhen Zhang

Favour

ShotEdgeOwnTheirs
BH to their forehand · serve +1+5.7±4.0+0.8+4.8
BH to their backhand · return+3.1±2.2+2.4+0.7
FH to their backhand · serve +1+3.0±2.3−1.1+4.2
BH to the middle · return+2.6±1.5+1.4+1.3
FH to their forehand · serve +1+2.3±2.5−0.2+2.5
FH to their forehand · rally+1.7±2.1−0.2+1.9

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−4.7±3.3−5.7+0.9
BH to their backhand · return +1−2.9±2.8−2.9±0.0
FH to the middle · serve +1−2.4±2.0−1.5−1.0
BH to the middle · serve +1−1.8±2.0−0.9−0.9
BH to their backhand · rally−1.4±1.7−1.9+0.6

Against Zhizhen Zhang-like opponents

Nick Kyrgios vMatchesServe pts wonReturn pts won
All charted opponents–69.6%31.7%
Players most similar to Zhizhen Zhang4 70.4%35.2%

Similar by tactical fingerprint: Jiri Lehecka, Arthur Rinderknech, Nuno Borges, Alexander Shevchenko, Zizou Bergs, Mackenzie Mcdonald, Fabio Fognini, Otto Virtanen, Borna Coric, Kevin Anderson. When two players have rarely met, their records against these lookalikes fill the gap.