RallyIQ

Game plan

Nick Kyrgios v Marcelo Rios

Every number combines what Nick Kyrgios does well with what Marcelo Rios 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 66%90%: 47%–82% · best of 5: 70%
Serve points won 72.5% / 68.8% Nick / Marcelo · tour 65.7%
Strengths only, no similarity priors 65%serve 72.3% / 69.0%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Nick Kyrgios's record against Marcelo Rios's tactical lookalikes and in their charted head-to-heads (lookalikes: +3.7 on serve, +2.6 on return vs expectation (201 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

CareerNickMarcelo
Direction choice−0.04 ±0.06
better than 46%
+0.13 ±0.05
better than 87%
Shot selection−0.09 ±0.06
better than 41%
−0.23 ±0.19
better than 28%
Execution+0.99 ±0.32
better than 95%
−0.40 ±0.62
better than 48%
Points left on the table2.66 ±0.12
lower than 44%
2.60 ±0.15
lower than 50%

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 MarceloMatchupOptimal
Wide38%77%68%72.7%±4.228% ▼
Body3%62%66%65.2%±10.00% ▼
T59%83%75%83.2%±3.772% ▲

Optimal v Marcelo Rios: +0.4±0.5 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowNick winsv MarceloMatchupOptimal
Wide46%79%72%78.3%±4.459% ▲
Body5%59%66%62.2%±9.10% ▼
T49%75%69%72.4%±4.841% ▼

Optimal v Marcelo Rios: +0.4±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.6 per 100 first serves in before the returner adjusts.

Marcelo Rios serving

Deuce court

1st serveNowMarcelo winsv NickMatchupOptimal
Wide46%67%81%77.1%±4.159% ▲
Body6%65%65%66.2%±10.10% ▼
T48%72%78%74.8%±4.441% ▼

Optimal v Nick Kyrgios: +0.5±0.5 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.7 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMarcelo winsv NickMatchupOptimal
Wide62%70%80%77.7%±3.763%
Body8%65%70%72.0%±8.90% ▼
T30%75%74%77.2%±5.537% ▲

Optimal v Nick Kyrgios: +0.3±0.4 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +0.6 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 MarceloValue
FH through the middle51%+4.3+0.9−1.0+4.1±2.1
FH down the line19%+1.7+1.6−1.3+1.9±3.8
FH crosscourt13%+5.5+2.3+1.5+9.3±3.7
FH slice through the middle12%−4.2+2.2−1.0−3.0±2.0
FH slice down the line4%−4.3+3.5−0.9−1.7±2.6

Lean FH crosscourt: +6.0±3.5 per 100 returns v the current mix (1842 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MarceloValue
BH through the middle44%+6.4+2.4−1.2+7.5±1.9
BH crosscourt27%+8.8+2.1−0.3+10.6±2.8
BH slice through the middle12%−4.2+1.3+2.0−0.8±2.1
BH down the line7%+4.2+0.4−2.5+2.2±4.4
BH slice crosscourt5%+0.5+0.2+1.9+2.6±3.0

Lean BH crosscourt: +4.4±2.2 per 100 returns v the current mix (1682 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MarceloValue
FH through the middle53%−3.5+0.1−0.2−3.6±2.3
FH down the line20%−1.8+1.5−5.3−5.6±4.5
FH crosscourt17%−0.2+1.4±0.0+1.2±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+0.9+1.8±1.8

Lean FH crosscourt: +4.5±3.7 per 100 returns v the current mix (593 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv MarceloValue
BH crosscourt38%+1.0+1.3−0.2+2.2±2.6
BH through the middle38%−2.9−0.1+0.9−2.1±2.0
BH down the line15%−0.2+1.8−1.5±0.0±4.5
FH through the middle2%−2.9+0.8−0.2−2.3±2.2
FH inside-in2%+0.6−1.3±0.0−0.7±4.0

Lean BH crosscourt: +2.5±1.9 per 100 returns v the current mix (1256 returns charted)

Marcelo Rios returning

1st serve to the forehand

ReturnNowTourOwnv NickValue
FH through the middle45%+4.3−2.6−0.2+1.4±2.1
FH crosscourt30%+5.5−0.1+1.5+6.9±3.7
FH down the line21%+1.7−3.6+0.7−1.2±4.0
FH slice through the middle2%−4.2+0.1+3.1−1.0±1.5
FH slice crosscourt2%−4.3+0.6+3.3−0.3±2.2

Lean FH crosscourt: +4.5±2.9 per 100 returns v the current mix (327 returns charted)

1st serve to the backhand

ReturnNowTourOwnv NickValue
BH through the middle33%+6.4−2.5+1.2+5.1±2.0
BH down the line20%+4.2+0.1+0.6+5.0±3.9
BH crosscourt20%+8.8−2.5+1.1+7.5±3.2
BH slice through the middle15%−4.2+0.4+0.8−3.0±2.0
BH slice down the line7%−8.4+1.0+0.4−7.0±3.1

Lean BH crosscourt: +4.2±2.8 per 100 returns v the current mix (493 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv NickValue
FH crosscourt50%−0.2+1.1−0.2+0.7±4.0
FH through the middle35%−3.5−0.6+0.6−3.4±2.4
FH down the line15%−1.8−0.3−4.4−6.5±4.2

Lean FH crosscourt: +2.5±2.2 per 100 returns v the current mix (147 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv NickValue
BH through the middle33%−2.9+1.2+1.5−0.2±1.9
BH down the line32%−0.2+1.8+1.3+2.9±3.9
BH crosscourt26%+1.0+1.3+3.9+6.2±3.0
FH inside-in2%+0.6+0.9−0.2+1.2±3.3
FH inside-out2%+1.0+1.1−4.4−2.3±2.9

Lean BH crosscourt: +4.1±2.6 per 100 returns v the current mix (356 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 slice to the middle · return+6.0±2.7+3.4+2.6
BH to the middle · return+2.4±1.9+2.2+0.3
BH slice to their forehand · rally+2.1±4.1+0.1+1.9
BH to the middle · return +1+1.8±2.7+2.4−0.6
FH to their forehand · serve +1+1.8±3.5+1.2+0.6
BH slice to their backhand · return +1+1.4±3.4−0.9+2.3

Avoid

ShotEdgeOwnTheirs
BH to their forehand · return +1−9.8±5.4−6.0−3.8
BH slice to their backhand · rally−5.6±2.8−4.4−1.2
BH to their forehand · rally−4.7±3.6−4.3−0.4
FH to their backhand · return +1−4.0±4.1−3.8−0.2
BH to their backhand · return +1−3.6±3.8−3.1−0.5

Marcelo Rios

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+5.4±4.9+2.7+2.7
BH to their forehand · serve +1+4.4±4.8−1.5+6.0
BH slice to the middle · return+3.3±2.4+0.8+2.6
FH to their backhand · return +1+3.3±4.3+0.5+2.8
FH to their forehand · return+3.2±5.2±0.0+3.2
FH to their backhand · serve +1+2.4±3.1−1.9+4.3

Avoid

ShotEdgeOwnTheirs
BH to their backhand · return +1−5.7±4.1−3.7−2.0
BH slice to their backhand · rally−3.0±2.8−1.8−1.3
BH to their forehand · rally−2.5±3.7−0.2−2.2
BH to their backhand · rally−2.3±2.3−3.5+1.2
FH to the middle · serve +1−1.4±2.7+0.1−1.5

Against Marcelo Rios-like opponents

Nick Kyrgios vMatchesServe pts wonReturn pts won
All charted opponents–69.6%31.7%
Players most similar to Marcelo Rios1 69.7%37.3%

Similar by tactical fingerprint: David Goffin, Fernando Verdasco, Paul Henri Mathieu, David Nalbandian, Ivan Ljubicic, Juan Carlos Ferrero, Gustavo Kuerten, Andre Agassi, Yevgeny Kafelnikov, Magnus Norman. When two players have rarely met, their records against these lookalikes fill the gap.