RallyIQ

Game plan

Jim Courier v Alexander Zverev

Every number combines what Jim Courier does well with what Alexander Zverev allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Jim Courier wins, best of 3 46%90%: 30%–62% · best of 5: 44%
Serve points won 63.1% / 64.0% Jim / Alexander · tour 61.3%
Strengths only, no similarity priors 46%serve 63.1% / 64.0%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Jim Courier's record against Alexander Zverev'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

CareerJimAlexander
Direction choice+0.04 ±0.08
better than 69%
+0.04 ±0.04
better than 68%
Shot selection−0.25 ±0.19
better than 28%
+0.09 ±0.06
better than 64%
Execution+0.69 ±0.34
better than 89%
+0.83 ±0.20
better than 92%
Points left on the table3.00 ±0.17
lower than 20%
2.45 ±0.06
lower than 67%

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.

Jim Courier serving

Deuce court

1st serveNowJim winsv AlexanderMatchupOptimal
Wide46%72%74%72.7%±2.959% ▲
Body11%65%60%61.8%±6.20% ▼
T43%77%74%75.9%±3.141% ▼

Optimal v Alexander Zverev: +0.9±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +3.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJim winsv AlexanderMatchupOptimal
Wide47%70%74%72.2%±3.144% ▼
Body10%62%65%64.0%±6.60% ▼
T43%75%71%74.1%±3.356% ▲

Optimal v Alexander Zverev: +0.6±0.5 per 100 first serves (faults included) over the current mix. Serving T every time would read +1.9 per 100 first serves in before the returner adjusts.

Alexander Zverev serving

Deuce court

1st serveNowAlexander winsv JimMatchupOptimal
Wide46%74%75%76.3%±2.959% ▲
Body6%62%61%59.3%±6.30% ▼
T48%77%73%74.6%±3.041% ▼

Optimal v Jim Courier: +0.7±0.4 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAlexander winsv JimMatchupOptimal
Wide44%75%72%74.3%±2.939% ▼
Body8%64%62%63.1%±6.90% ▼
T48%73%75%75.6%±3.461% ▲

Optimal v Jim Courier: +0.7±0.5 per 100 first serves (faults included) over the current mix. Serving T every time would read +1.5 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.

Jim Courier returning

1st serve to the forehand

ReturnNowTourOwnv AlexanderValue
FH through the middle49%+4.3−1.0−0.5+2.8±1.5
FH crosscourt29%+5.5+1.8+1.2+8.5±2.9
FH down the line19%+1.7+1.0−1.8+0.9±3.1
BH through the middle1%+6.6−0.8+0.3+6.1±1.6
BH inside-in1%+7.7−2.4−0.6+4.8±2.3

Lean FH crosscourt: +4.4±2.2 per 100 returns v the current mix (855 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AlexanderValue
BH through the middle36%+6.4−0.8+0.3+5.9±1.4
BH crosscourt36%+8.8+2.5−0.6+10.7±2.0
BH slice through the middle9%−4.2+0.5−2.4−6.1±1.9
BH down the line8%+4.2−1.3−2.4+0.5±3.8
BH slice crosscourt7%+0.5±0.0−4.7−4.1±2.6

Lean BH crosscourt: +5.8±1.4 per 100 returns v the current mix (1149 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AlexanderValue
FH through the middle45%−3.5−0.3−0.2−4.0±2.0
FH crosscourt34%−0.2−1.8−2.2−4.2±3.7
FH down the line17%−1.8−3.0−4.1−9.0±4.0
BH through the middle2%+0.1+0.7+0.6+1.5±1.2
BH inside-out1%+0.9−1.0−0.7−0.7±2.9

Lean FH through the middle: +0.8±1.8 per 100 returns v the current mix (355 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv AlexanderValue
BH crosscourt39%+1.0+3.0−1.3+2.7±1.9
BH through the middle31%−2.9−0.3+0.6−2.6±1.5
FH through the middle8%−2.9−0.3−0.2−3.3±1.9
BH down the line7%−0.2+0.6−0.7−0.3±4.3
FH inside-in6%+0.6+1.6−2.2±0.0±3.9

Lean BH crosscourt: +3.3±1.3 per 100 returns v the current mix (953 returns charted)

Alexander Zverev returning

1st serve to the forehand

ReturnNowTourOwnv JimValue
FH through the middle55%+4.3−1.3−0.8+2.2±1.4
FH crosscourt28%+5.5−0.9−1.1+3.6±2.8
FH down the line12%+1.7−2.8+1.9+0.8±2.9
FH slice through the middle3%−4.2+0.2+0.8−3.2±2.1
FH slice crosscourt1%−4.3−0.2+3.6−0.9±2.7

Lean FH crosscourt: +1.4±2.2 per 100 returns v the current mix (4008 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv JimValue
BH through the middle45%+6.4+1.7−2.8+5.3±1.6
BH crosscourt27%+8.8+1.9−2.6+8.1±2.2
BH slice through the middle10%−4.2−4.8+1.3−7.7±1.6
BH down the line10%+4.2+1.7−2.8+3.0±3.9
BH slice crosscourt5%+0.5−5.6+3.5−1.6±2.3

Lean BH crosscourt: +4.4±1.8 per 100 returns v the current mix (3276 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JimValue
FH through the middle51%−3.5+0.2+0.6−2.7±1.9
FH crosscourt34%−0.2+0.9−1.8−1.1±3.5
FH down the line11%−1.8−0.9+0.2−2.5±3.8
BH through the middle2%+0.1+0.4−0.4+0.1±1.7
BH inside-in1%+2.5−0.5−1.7+0.3±2.8

Lean BH inside-in: +2.3±3.2 per 100 returns v the current mix (1307 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv JimValue
BH crosscourt49%+1.0+1.3−1.7+0.7±1.8
BH through the middle40%−2.9+1.0−0.4−2.2±1.5
BH down the line8%−0.2+1.4+1.0+2.2±4.5
FH through the middle1%−2.9+1.0+0.6−1.3±2.1
FH inside-in1%+0.6−3.7−1.8−4.9±4.0

Lean BH down the line: +2.7±4.3 per 100 returns v the current mix (2035 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 on clay. Each player's clay record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Jim Courier

Favour

ShotEdgeOwnTheirs
BH volley to their forehand · rally+8.1±7.6+2.6+5.4
BH volley to their backhand · rally+6.7±7.7−3.7+10.4
BH lob to their backhand · rally+6.3±6.4+5.2+1.1
FH volley to their backhand · rally+6.1±7.6+3.6+2.5
BH slice to their backhand · serve +1+5.8±3.8+3.9+1.9
BH to their forehand · return +1+4.6±5.2+2.0+2.7

Avoid

ShotEdgeOwnTheirs
BH to their forehand · return−7.0±4.5−2.6−4.4
BH slice to their backhand · return−2.9±3.5+1.8−4.6
BH to their forehand · rally−2.1±3.5−2.7+0.6
FH to the middle · return +1−1.8±2.8−2.0+0.2
FH to their backhand · return−1.4±3.2+1.6−3.0

Alexander Zverev

Favour

ShotEdgeOwnTheirs
BH to their forehand · serve +1+7.6±4.9+2.0+5.6
BH volley to their backhand · rally+6.3±7.3−1.5+7.7
FH slice to the middle · return+3.8±3.0+0.5+3.3
BH slice to their backhand · return +1+3.7±3.3+0.7+2.9
BH to the middle · return +1+2.5±2.4+1.2+1.3
FH to the middle · return+1.6±2.0+1.2+0.4

Avoid

ShotEdgeOwnTheirs
BH volley to their forehand · rally−10.0±7.2−5.2−4.7
BH slice to their forehand · return +1−8.0±4.9−5.6−2.4
BH volley to the middle · rally−5.3±7.6−1.5−3.7
BH slice to their backhand · return−3.9±3.3−6.8+2.9
BH slice to the middle · return−3.5±2.4−3.3−0.2

Against Alexander Zverev-like opponents

Jim Courier vMatchesServe pts wonReturn pts won
All charted opponents–65.3%36.6%

Similar by tactical fingerprint: Learner Tien, Daniil Medvedev, Novak Djokovic, Karen Khachanov, Alexandre Muller, Borna Coric, Taro Daniel, Emil Ruusuvuori, Denis Istomin, Nikolay Davydenko. When two players have rarely met, their records against these lookalikes fill the gap.