RallyIQ

Game plan

Alexei Popyrin v Zizou Bergs

Every number combines what Alexei Popyrin does well with what Zizou Bergs allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Alexei Popyrin wins, best of 3 79%90%: 58%–92% · best of 5: 84%
Serve points won 67.1% / 60.6% Alexei / Zizou · tour 64.0%
Strengths only, no similarity priors 81%serve 67.0% / 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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Alexei Popyrin's record against Zizou Bergs's tactical lookalikes and in their charted head-to-heads (lookalikes: +1.1 on serve, −6.1 on return vs expectation (350 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

CareerAlexeiZizou
Direction choice+0.04 ±0.06
better than 69%
−0.08 ±0.07
better than 36%
Shot selection+0.29 ±0.15
better than 79%
+0.25 ±0.19
better than 75%
Execution−0.73 ±0.59
better than 36%
−1.10 ±0.72
better than 22%
Points left on the table2.71 ±0.10
lower than 39%
2.64 ±0.13
lower than 46%

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: Alexei Popyrin −0.85, Zizou Bergs −0.86. 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.

Alexei Popyrin serving

Deuce court

1st serveNowAlexei winsv ZizouMatchupOptimal
Wide45%73%73%72.9%±5.442% ▼
Body9%62%63%61.9%±12.20% ▼
T45%78%73%76.5%±5.458% ▲

Optimal v Zizou Bergs: +0.7±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowAlexei winsv ZizouMatchupOptimal
Wide52%76%74%77.0%±5.544% ▼
Body5%63%66%65.6%±12.70% ▼
T43%74%77%78.9%±5.356% ▲

Optimal v Zizou Bergs: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.7 per 100 first serves in before the returner adjusts.

Zizou Bergs serving

Deuce court

1st serveNowZizou winsv AlexeiMatchupOptimal
Wide45%75%73%75.2%±5.643% ▼
Body11%68%64%68.3%±10.20% ▼
T44%76%75%75.8%±5.757% ▲

Optimal v Alexei Popyrin: +0.8±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowZizou winsv AlexeiMatchupOptimal
Wide48%72%74%73.4%±5.944% ▼
Body9%67%69%71.8%±11.00% ▼
T43%65%73%66.9%±6.656% ▲

Optimal v Alexei Popyrin: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.0 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.

Alexei Popyrin returning

1st serve to the forehand

ReturnNowTourOwnv ZizouValue
FH through the middle44%+4.3+1.5−2.1+3.7±2.5
FH down the line21%+1.7+1.8±0.0+3.5±4.3
FH crosscourt19%+5.5+3.3+3.4+12.3±4.3
FH slice through the middle11%−4.2−1.3−1.1−6.7±2.3
FH slice down the line4%−4.3−0.6+0.6−4.2±2.9

Lean FH crosscourt: +8.6±3.8 per 100 returns v the current mix (584 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ZizouValue
BH through the middle41%+6.4+1.0−2.0+5.4±2.4
BH down the line20%+4.2−1.4+0.9+3.7±4.4
BH slice through the middle15%−4.2+0.8−1.3−4.8±2.4
BH crosscourt13%+8.8+1.6+1.7+12.1±3.5
BH slice crosscourt7%+0.5−3.0−0.1−2.6±3.0

Lean BH crosscourt: +9.0±3.3 per 100 returns v the current mix (633 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ZizouValue
FH through the middle47%−3.5−0.9−0.1−4.5±2.8
FH crosscourt32%−0.2+5.2+1.0+5.9±4.3
FH down the line21%−1.8−4.1−4.5−10.3±4.6

Lean FH crosscourt: +8.3±3.3 per 100 returns v the current mix (139 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv ZizouValue
BH through the middle37%−2.9−4.1−1.4−8.4±2.3
BH down the line21%−0.2−1.5±0.0−1.7±4.8
BH crosscourt18%+1.0−3.2+0.1−2.0±3.2
FH through the middle10%−2.9−2.4−0.1−5.3±2.3
FH inside-out9%+1.0−1.3−4.5−4.8±3.7
FH inside-in4%+0.6−3.0+1.0−1.5±4.1

Lean FH inside-in: +3.5±4.2 per 100 returns v the current mix (463 returns charted, inside the 90% margin)

Zizou Bergs returning

1st serve to the forehand

ReturnNowTourOwnv AlexeiValue
FH through the middle51%+4.3+0.1+1.7+6.1±2.4
FH down the line26%+1.7−3.0−4.4−5.7±4.3
FH crosscourt13%+5.5+2.7+1.7+9.9±4.3
FH slice through the middle6%−4.2−0.1+0.3−4.1±2.2
FH slice crosscourt3%−4.3−0.5−0.8−5.6±2.4

Lean FH crosscourt: +7.5±4.1 per 100 returns v the current mix (344 returns charted)

1st serve to the backhand

ReturnNowTourOwnv AlexeiValue
BH through the middle40%+6.4−0.9+0.5+6.0±2.4
BH crosscourt21%+8.8−1.6−0.9+6.2±3.3
BH slice through the middle18%−4.2−1.0−2.0−7.3±2.4
BH down the line8%+4.2+0.3+1.0+5.5±4.5
BH slice down the line7%−8.4+0.1−2.9−11.2±3.3

Lean BH crosscourt: +4.2±2.9 per 100 returns v the current mix (306 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv AlexeiValue
FH through the middle57%−3.5−1.7+0.3−4.8±2.7
FH down the line29%−1.8−0.2−3.4−5.4±4.6
FH crosscourt14%−0.2+0.6+1.5+1.9±4.1

Lean FH crosscourt: +5.9±4.1 per 100 returns v the current mix (124 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv AlexeiValue
BH crosscourt45%+1.0−1.7−2.2−2.8±2.9
BH through the middle40%−2.9−3.3−0.4−6.7±2.3
BH down the line5%−0.2+1.0+3.2+4.0±4.4
BH slice through the middle4%−11.3−0.7±0.0−12.0±1.1
FH through the middle4%−2.9+0.3+0.3−2.3±1.8

Lean BH crosscourt: +1.5±1.9 per 100 returns v the current mix (193 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 hard. Each player's hard record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Alexei Popyrin

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+10.3±5.9+5.1+5.2
FH to their forehand · rally+3.4±2.9+3.1+0.3
BH to their backhand · return +1+2.3±4.5+0.6+1.7
BH to the middle · return +1+0.9±3.4−1.0+1.9
BH to their backhand · serve +1+0.6±4.8+1.7−1.1
BH slice to their backhand · rally+0.4±3.2−0.7+1.2

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−7.3±5.5−4.9−2.4
BH to their forehand · serve +1−6.3±6.9−0.4−5.9
FH to their backhand · return−5.5±4.6−1.3−4.2
FH to their backhand · rally−4.9±3.0+0.2−5.1
BH to their backhand · rally−4.4±2.7−5.0+0.5

Zizou Bergs

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+6.4±5.9+4.0+2.4
FH to the middle · return +1+5.1±3.7+2.6+2.5
BH to the middle · return +1+3.2±3.5+2.4+0.8
FH to their backhand · return +1+1.7±5.0−0.4+2.1
BH to the middle · serve +1+1.0±3.6+1.3−0.3
FH to the middle · rally+0.9±2.7−1.9+2.8

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−9.6±4.7−3.2−6.4
BH slice to their backhand · rally−7.0±3.6−3.8−3.2
FH to their backhand · serve +1−5.9±3.6−6.1+0.2
FH to their forehand · return +1−4.0±4.8−3.4−0.7
BH to their forehand · rally−3.7±5.5−2.2−1.5

Against Zizou Bergs-like opponents

Alexei Popyrin vMatchesServe pts wonReturn pts won
All charted opponents–63.9%33.5%
Players most similar to Zizou Bergs1 66.5%28.7%

Similar by tactical fingerprint: Stefanos Tsitsipas, Ben Shelton, Tallon Griekspoor, Zhizhen Zhang, Felix Auger Aliassime, Roman Safiullin, Otto Virtanen, Lucas Pouille, Sam Querrey. When two players have rarely met, their records against these lookalikes fill the gap.