RallyIQ

Game plan

Andy Murray v Kei Nishikori

Every number combines what Andy Murray does well with what Kei Nishikori allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Andy Murray wins, best of 3 72%90%: 48%–89% · best of 5: 77%
Serve points won 61.6% / 57.0% Andy / Kei · tour 63.4%
Strengths only, no similarity priors 60%serve 61.9% / 60.0%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Andy Murray's record against Kei Nishikori's tactical lookalikes and in their charted head-to-heads (lookalikes: −0.9 on serve, +2.3 on return vs expectation (6114 points); head-to-head: +1.3 on serve, +7.9 on return vs expectation (731 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

CareerAndyKei
Direction choice+0.14 ±0.03
better than 87%
+0.06 ±0.05
better than 73%
Shot selection−0.45 ±0.05
better than 13%
−0.30 ±0.07
better than 23%
Execution+0.94 ±0.16
better than 95%
−0.05 ±0.28
better than 66%
Points left on the table2.23 ±0.05
lower than 90%
2.29 ±0.07
lower than 85%

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: Andy Murray +0.75, Kei Nishikori +0.13. 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.

Andy Murray serving

Deuce court

1st serveNowAndy winsv KeiMatchupOptimal
Wide47%71%71%68.4%±2.941% ▼
Body8%67%65%68.3%±5.60% ▼
T46%80%76%80.9%±2.559% ▲

Optimal v Kei Nishikori: +0.4±0.4 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +6.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAndy winsv KeiMatchupOptimal
Wide47%77%74%77.9%±2.660% ▲
Body8%61%61%59.7%±6.60% ▼
T45%70%74%71.6%±3.140% ▼

Optimal v Kei Nishikori: +0.4±0.5 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.3 per 100 first serves in before the returner adjusts.

Kei Nishikori serving

Deuce court

1st serveNowKei winsv AndyMatchupOptimal
Wide42%70%70%66.5%±2.942%
Body16%62%59%57.9%±5.13% ▼
T42%73%76%73.8%±2.955% ▲

Optimal v Andy Murray: +1.0±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +5.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowKei winsv AndyMatchupOptimal
Wide47%70%71%67.5%±3.260% ▲
Body17%63%57%57.4%±5.44% ▼
T36%68%68%64.1%±3.636%

Optimal v Andy Murray: +0.8±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +2.9 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.

Andy Murray returning

1st serve to the forehand

ReturnNowTourOwnv KeiValue
FH through the middle42%+4.3+1.4+0.7+6.3±1.2
FH down the line17%+1.7+6.2+2.3+10.1±2.7
FH crosscourt16%+5.5+1.9+0.1+7.5±2.6
FH slice through the middle14%−4.2+2.7+1.4−0.2±1.8
FH slice down the line5%−4.3+3.1+1.0−0.3±2.7

Lean FH down the line: +4.4±2.3 per 100 returns v the current mix (5314 returns charted)

1st serve to the backhand

ReturnNowTourOwnv KeiValue
BH crosscourt27%+8.8+4.6+1.8+15.1±1.9
BH through the middle25%+6.4+2.2+0.7+9.3±1.3
BH slice through the middle25%−4.2+2.7±0.0−1.5±1.5
BH slice crosscourt15%+0.5+2.4+0.7+3.6±2.1
BH slice down the line4%−8.4+0.9+2.6−4.9±3.2

Lean BH crosscourt: +8.4±1.6 per 100 returns v the current mix (4642 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv KeiValue
FH through the middle43%−3.5+1.6−0.3−2.2±1.9
FH down the line28%−1.8+2.5+1.7+2.4±3.6
FH crosscourt23%−0.2+1.9−0.4+1.3±3.3
BH through the middle3%+0.1−1.3+1.1−0.1±1.7
BH inside-in1%+2.5+2.7+1.3+6.5±2.7

Lean BH inside-in: +6.5±3.1 per 100 returns v the current mix (1297 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv KeiValue
BH crosscourt57%+1.0+1.7+1.3+4.0±1.6
BH through the middle29%−2.9+0.1+1.1−1.7±1.4
BH down the line7%−0.2+2.4−0.5+1.7±4.1
BH slice crosscourt3%−4.0−1.9+0.4−5.5±2.6
BH slice through the middle2%−11.3−1.4±0.0−12.7±2.4

Lean BH crosscourt: +2.6±0.9 per 100 returns v the current mix (2339 returns charted)

Kei Nishikori returning

1st serve to the forehand

ReturnNowTourOwnv AndyValue
FH through the middle46%+4.3−1.1+1.2+4.3±1.3
FH crosscourt24%+5.5+1.1+1.3+7.8±2.6
FH down the line19%+1.7+1.2+0.2+3.2±2.8
FH slice through the middle6%−4.2+1.6+1.4−1.3±1.9
FH slice down the line3%−4.3+0.4+1.1−2.7±3.0

Lean FH crosscourt: +3.6±2.1 per 100 returns v the current mix (1224 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AndyValue
BH crosscourt29%+8.8+1.9+0.9+11.6±2.2
BH through the middle24%+6.4−1.0−0.1+5.3±1.6
BH slice through the middle21%−4.2−1.9−0.4−6.5±1.5
BH slice crosscourt15%+0.5+1.4+0.5+2.4±2.2
BH slice down the line5%−8.4−1.3−3.5−13.1±3.1

Lean BH crosscourt: +8.4±1.7 per 100 returns v the current mix (1117 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AndyValue
FH through the middle44%−3.5+0.4+0.7−2.3±1.9
FH down the line28%−1.8−3.1+2.6−2.3±3.5
FH crosscourt27%−0.2+1.0+1.5+2.3±3.2
FH slice down the line1%−9.4−0.3−1.4−11.2±1.9

Lean FH crosscourt: +3.5±2.7 per 100 returns v the current mix (423 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv AndyValue
BH crosscourt47%+1.0+2.6+1.8+5.4±1.7
BH through the middle30%−2.9−0.7+1.1−2.5±1.5
BH down the line14%−0.2+2.2+1.3+3.3±3.6
FH through the middle3%−2.9−0.4+0.7−2.6±1.8
FH inside-out2%+1.0+1.4+2.6+4.9±2.7

Lean BH crosscourt: +3.3±1.1 per 100 returns v the current mix (845 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.

Andy Murray

Favour

ShotEdgeOwnTheirs
FH to their backhand · return+6.5±2.0+4.1+2.4
FH slice to the middle · rally+5.9±2.3+3.6+2.3
FH slice to the middle · return+4.7±1.8+3.5+1.2
BH slice to their backhand · return+4.0±1.8+3.3+0.8
BH to their forehand · return+3.9±2.6+3.5+0.5
FH volley to their forehand · rally+3.7±4.7+3.0+0.7

Avoid

ShotEdgeOwnTheirs
FH volley to their backhand · rally−5.1±5.0−1.1−4.0
BH to their forehand · return +1−4.3±3.1−0.7−3.6
BH to their forehand · rally−3.4±1.8+0.1−3.5
BH to their forehand · serve +1−3.4±3.0−0.3−3.0
BH slice to their forehand · rally−1.4±2.2−0.3−1.1

Kei Nishikori

Favour

ShotEdgeOwnTheirs
FH drop shot to their backhand · rally+5.5±4.8−0.9+6.4
FH volley to their forehand · rally+4.0±4.6+3.3+0.8
FH to their forehand · return+3.7±2.3+2.5+1.2
FH slice to the middle · return+2.8±1.8+1.3+1.5
BH to their forehand · rally+2.6±1.7+2.8−0.2
BH slice to their backhand · return+2.6±2.0+1.9+0.7

Avoid

ShotEdgeOwnTheirs
BH slice to their forehand · return−4.7±3.1−1.8−2.9
BH volley to their forehand · rally−3.0±4.7−2.5−0.5
BH volley to their backhand · rally−2.6±4.8−2.7+0.1
FH volley to their backhand · rally−2.3±4.8−1.8−0.5
FH slice to their backhand · rally−2.3±3.2−0.2−2.1

Against Kei Nishikori-like opponents

Andy Murray vMatchesServe pts wonReturn pts won
All charted opponents–63.7%38.1%
Players most similar to Kei Nishikori35 59.0%38.7%
Kei Nishikori (charted head-to-head)5 63.2%48.2%

Similar by tactical fingerprint: Valentin Vacherot, Tommy Paul, Novak Djokovic, Karen Khachanov, Laslo Djere, Benjamin Bonzi, Roman Safiullin, Fabio Fognini, David Goffin, Mikhail Kukushkin. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head