RallyIQ

Game plan

Novak Djokovic v Denis Istomin

Every number combines what Novak Djokovic does well with what Denis Istomin allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Novak Djokovic wins, best of 3 91%90%: 76%–98% · best of 5: 95%
Serve points won 70.5% / 59.5% Novak / Denis · tour 63.4%
Strengths only, no similarity priors 93%serve 70.0% / 57.9%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Novak Djokovic's record against Denis Istomin's tactical lookalikes and in their charted head-to-heads (lookalikes: +1.8 on serve, −1.9 on return vs expectation (4254 points); head-to-head: −5.1 on serve, −4.5 on return vs expectation (379 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

CareerNovakDenis
Direction choice+0.04 ±0.02
better than 70%
+0.03 ±0.13
better than 67%
Shot selection+0.04 ±0.03
better than 58%
−0.41 ±0.13
better than 16%
Execution+1.17 ±0.10
better than 97%
+0.13 ±1.35
better than 73%
Points left on the table2.24 ±0.03
lower than 89%
2.37 ±0.24
lower than 76%

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.

Novak Djokovic serving

Deuce court

1st serveNowNovak winsv DenisMatchupOptimal
Wide46%74%77%77.9%±5.459% ▲
Body9%67%63%66.4%±10.10% ▼
T45%76%76%76.7%±5.841% ▼

Optimal v Denis Istomin: +0.5±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowNovak winsv DenisMatchupOptimal
Wide51%74%81%82.1%±5.364% ▲
Body9%63%60%60.3%±10.80% ▼
T40%73%75%75.7%±6.336% ▼

Optimal v Denis Istomin: +0.9±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +4.5 per 100 first serves in before the returner adjusts.

Denis Istomin serving

Deuce court

1st serveNowDenis winsv NovakMatchupOptimal
Wide44%74%69%70.3%±6.457% ▲
Body10%57%58%50.8%±10.30% ▼
T46%71%71%67.1%±6.343% ▼

Optimal v Novak Djokovic: +0.9±0.7 per 100 first serves (faults included) over the current mix. Serving wide every time would read +3.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowDenis winsv NovakMatchupOptimal
Wide49%71%69%67.6%±6.742% ▼
Body7%62%57%55.4%±12.00% ▼
T45%70%69%66.2%±6.558% ▲

Optimal v Novak Djokovic: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.4 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.

Novak Djokovic returning

1st serve to the forehand

ReturnNowTourOwnv DenisValue
FH through the middle49%+4.3+0.5+1.3+6.1±2.1
FH down the line20%+1.7+1.9−1.0+2.6±3.3
FH crosscourt18%+5.5+0.3+0.4+6.3±3.1
FH slice through the middle8%−4.2+1.5+1.0−1.7±1.6
FH slice down the line2%−4.3+1.4+0.9−2.0±2.4
BH inside-in0%+7.7+2.5+1.7+11.8±3.7

Lean BH inside-in: +7.4±3.9 per 100 returns v the current mix (11120 returns charted)

1st serve to the backhand

ReturnNowTourOwnv DenisValue
BH through the middle38%+6.4+0.5−1.3+5.6±2.1
BH crosscourt24%+8.8+1.4+1.7+11.8±2.6
BH slice through the middle15%−4.2−0.2+0.2−4.2±1.9
BH down the line11%+4.2+2.2+0.2+6.6±3.2
BH slice crosscourt8%+0.5−1.0+0.4−0.1±2.4

Lean BH crosscourt: +7.1±2.2 per 100 returns v the current mix (9500 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv DenisValue
FH through the middle54%−3.5+1.3+0.2−1.9±2.2
FH down the line28%−1.8+1.5−0.6−0.8±3.7
FH crosscourt16%−0.2+1.5−0.5+0.8±3.5
BH through the middle1%+0.1−1.2+0.6−0.5±2.1
BH inside-out1%+0.9−0.4+1.1+1.6±4.0

Lean BH inside-out: +2.7±4.3 per 100 returns v the current mix (2581 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv DenisValue
BH crosscourt43%+1.0+1.4+0.6+3.1±2.3
BH through the middle43%−2.9+0.7+0.6−1.6±1.9
BH down the line10%−0.2+2.0+1.1+2.8±3.7
FH through the middle2%−2.9−0.9+0.2−3.6±2.4
FH inside-out1%+1.0+0.1−0.6+0.4±3.7

Lean BH crosscourt: +2.4±1.6 per 100 returns v the current mix (6220 returns charted)

Denis Istomin returning

1st serve to the forehand

ReturnNowTourOwnv NovakValue
FH through the middle34%+4.3−0.3−0.4+3.6±2.2
FH down the line21%+1.7−3.9−0.2−2.4±3.3
FH slice through the middle18%−4.2−2.3+1.0−5.5±1.8
FH crosscourt17%+5.5−0.5+0.6+5.6±3.2
FH slice crosscourt8%−4.3−0.7+2.7−2.3±2.3

Lean FH crosscourt: +5.2±2.9 per 100 returns v the current mix (167 returns charted)

1st serve to the backhand

ReturnNowTourOwnv NovakValue
BH through the middle32%+6.4+0.8+0.5+7.6±2.1
BH crosscourt27%+8.8±0.0+0.7+9.5±2.6
BH slice through the middle14%−4.2−0.4+0.5−4.1±1.7
BH slice crosscourt12%+0.5±0.0+1.0+1.5±2.1
BH down the line10%+4.2−3.0+0.3+1.5±3.1

Lean BH crosscourt: +5.0±2.1 per 100 returns v the current mix (154 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv NovakValue
FH crosscourt41%−0.2−0.3−1.6−2.1±3.1
FH through the middle33%−3.5−1.2+0.3−4.4±1.9
FH down the line25%−1.8+0.9−2.6−3.5±2.9

Lean FH crosscourt: +1.1±2.0 per 100 returns v the current mix (51 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv NovakValue
BH through the middle44%−2.9+1.2+0.6−1.1±1.9
BH crosscourt43%+1.0+1.1+0.9+3.0±2.4
BH down the line7%−0.2−0.1±0.0−0.3±2.7
BH slice through the middle6%−11.3−0.5−0.6−12.4±1.5

Lean BH crosscourt: +2.9±1.6 per 100 returns v the current mix (86 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.

Novak Djokovic

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+4.0±2.9+1.6+2.4
FH to their backhand · return +1+3.3±3.0+1.8+1.5
BH to their backhand · rally+3.0±2.0+1.2+1.8
FH to their forehand · rally+3.0±2.1+1.7+1.3
FH to their forehand · return +1+2.9±3.1+2.1+0.8
FH to the middle · rally+2.7±1.7+1.2+1.5

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−3.7±3.0+0.1−3.8
FH to their backhand · serve +1−0.4±2.5+0.6−1.0
BH slice to their backhand · return−0.3±2.3−0.5+0.2
FH to their backhand · return±0.0±2.8+1.1−1.1
BH to the middle · return+0.3±1.9+0.4−0.1

Denis Istomin

Favour

ShotEdgeOwnTheirs
BH to their backhand · return+2.4±2.4+1.1+1.3
BH to the middle · return+2.0±1.8+1.0+1.1
BH to their backhand · return +1+1.5±2.6+1.7−0.2
FH to their backhand · serve +1+1.4±2.7+1.8−0.4
FH to their forehand · serve +1+1.0±2.9+0.2+0.7
FH to the middle · rally+0.6±1.7+0.6±0.0

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−4.0±3.0−2.7−1.3
BH to their backhand · rally−2.1±1.8−2.3+0.2
BH to the middle · rally−1.0±1.5−1.0±0.0
BH to their forehand · serve +1−0.8±3.5−0.5−0.3
FH to the middle · return−0.7±2.0−0.5−0.2

Against Denis Istomin-like opponents

Novak Djokovic vMatchesServe pts wonReturn pts won
All charted opponents–66.9%40.4%
Players most similar to Denis Istomin24 69.1%37.3%
Denis Istomin (charted head-to-head)1 64.9%37.6%

Similar by tactical fingerprint: Learner Tien, Alexander Zverev, Hubert Hurkacz, Karen Khachanov, Laslo Djere, Benjamin Bonzi, Filip Krajinovic, Jarkko Nieminen, Nikolay Davydenko. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head