RallyIQ

Game plan

Saisai Zheng v Francesca Schiavone

Every number combines what Saisai Zheng does well with what Francesca Schiavone allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Saisai Zheng wins, best of 3 63%90%: 30%–88% · best of 5: 66%
Serve points won 57.6% / 55.1% Saisai / Francesca · tour 56.4%
Strengths only, no similarity priors 61%serve 57.4% / 55.3%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Saisai Zheng's record against Francesca Schiavone's tactical lookalikes and in their charted head-to-heads (lookalikes: +1.2 on serve, +1.0 on return vs expectation (674 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

CareerSaisaiFrancesca
Direction choice−0.36 ±0.16
better than 3%
+0.21 ±0.11
better than 86%
Shot selection−0.40 ±0.15
better than 17%
−0.36 ±0.28
better than 18%
Execution−0.20 ±0.75
better than 48%
+0.31 ±0.80
better than 72%
Points left on the table3.22 ±0.21
lower than 4%
2.64 ±0.18
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.

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.

Saisai Zheng serving

Deuce court

1st serveNowSaisai winsv FrancescaMatchupOptimal
Wide43%62%60%55.9%±9.955% ▲
Body23%63%63%68.0%±11.38% ▼
T34%67%68%67.8%±10.137% ▲

Optimal v Francesca Schiavone: +0.3±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving body every time would read +5.2 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowSaisai winsv FrancescaMatchupOptimal
Wide49%58%67%59.9%±9.849%
Body18%59%60%62.7%±13.33% ▼
T33%66%69%70.3%±10.248% ▲

Optimal v Francesca Schiavone: +0.7±1.3 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +6.5 per 100 first serves in before the returner adjusts.

Francesca Schiavone serving

Deuce court

1st serveNowFrancesca winsv SaisaiMatchupOptimal
Wide41%73%65%71.2%±8.756% ▲
Body13%59%51%53.2%±14.20% ▼
T46%60%68%60.3%±10.544% ▼

Optimal v Saisai Zheng: +1.2±1.1 per 100 first serves (faults included) over the current mix. Serving wide every time would read +7.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowFrancesca winsv SaisaiMatchupOptimal
Wide54%61%65%60.3%±9.848% ▼
Body9%57%63%63.8%±14.60% ▼
T37%66%65%66.0%±10.252% ▲

Optimal v Saisai Zheng: +0.6±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.3 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.

Saisai Zheng returning

1st serve to the forehand

ReturnNowTourOwnv FrancescaValue
FH through the middle47%+4.2+1.1−3.2+2.0±3.0
FH slice through the middle19%−6.7+1.6−0.1−5.2±2.4
FH down the line17%+1.5+2.3−0.5+3.3±4.7
FH crosscourt7%+5.3+0.2−0.9+4.7±3.8
FH slice down the line5%−10.5−0.5±0.0−11.0±1.7

Lean FH down the line: +3.4±4.1 per 100 returns v the current mix (169 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv FrancescaValue
BH through the middle44%+6.0+1.0+1.5+8.4±2.8
BH down the line23%+2.2+1.9−2.0+2.1±4.6
BH crosscourt18%+7.7+0.9+1.3+9.9±3.5
BH slice through the middle9%−6.2+0.7−1.1−6.6±2.2
BH slice crosscourt7%−4.2+0.4+0.4−3.4±2.5

Lean BH crosscourt: +4.9±3.3 per 100 returns v the current mix (131 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv FrancescaValue
BH through the middle48%−2.6−0.7−0.9−4.1±2.8
BH crosscourt32%+1.5−0.6−0.6+0.3±3.5
BH down the line19%−0.5−0.5−0.7−1.8±4.8

Lean BH crosscourt: +2.5±2.9 per 100 returns v the current mix (77 returns charted, inside the 90% margin)

Francesca Schiavone returning

1st serve to the forehand

ReturnNowTourOwnv SaisaiValue
FH through the middle37%+4.2+1.9−1.4+4.6±3.1
FH down the line31%+1.5+1.7−2.0+1.2±4.5
FH slice through the middle15%−6.7+0.4+0.7−5.6±2.1
FH crosscourt10%+5.3+0.3−0.6+5.0±4.2
FH slice down the line5%−10.5−1.1±0.0−11.6±1.9

Lean FH crosscourt: +4.0±4.2 per 100 returns v the current mix (224 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv SaisaiValue
BH slice through the middle29%−6.2+0.8−0.1−5.5±2.3
BH through the middle26%+6.0+0.8−0.4+6.4±2.9
BH crosscourt18%+7.7−1.7+0.5+6.5±3.7
BH slice crosscourt15%−4.2+0.6+1.0−2.5±2.5
BH down the line9%+2.2+0.7−4.0−1.1±4.5

Lean BH crosscourt: +6.0±3.2 per 100 returns v the current mix (242 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv SaisaiValue
FH through the middle50%−3.2+1.6+0.5−1.1±3.0
FH down the line19%−0.6+2.0±0.0+1.5±4.3
FH crosscourt18%+0.5+1.8+0.1+2.5±4.0
FH slice through the middle13%−15.2+0.4±0.0−14.8±1.3

Lean FH through the middle: +0.6±1.9 per 100 returns v the current mix (62 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv SaisaiValue
BH through the middle40%−2.6+0.1+2.9+0.4±2.8
BH crosscourt15%+1.5+1.2+0.7+3.4±3.4
FH through the middle12%−2.7+0.2+0.5−1.9±2.4
BH down the line11%−0.5−0.2+1.2+0.4±4.0
FH inside-out10%+1.4+0.9±0.0+2.2±3.5

Lean BH crosscourt: +3.9±3.2 per 100 returns v the current mix (102 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 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.

Saisai Zheng

Favour

ShotEdgeOwnTheirs
FH to the middle · rally+4.0±2.9+2.1+1.9
FH to their forehand · rally+3.9±4.0+0.7+3.3
BH to the middle · rally+3.8±3.1+1.4+2.4
BH to the middle · return+2.4±3.4+0.3+2.1
BH slice to their backhand · rally+1.9±4.1−0.5+2.5
BH to their forehand · return+1.7±6.8+0.1+1.6

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−2.3±5.7−3.0+0.7
FH to their backhand · rally−1.9±4.3−0.6−1.3
FH to the middle · serve +1−0.8±4.0+1.0−1.8
BH to their backhand · return+0.2±5.1+0.2±0.0
BH to their backhand · serve +1+0.5±5.4+0.6±0.0

Francesca Schiavone

Favour

ShotEdgeOwnTheirs
BH slice to their backhand · rally+8.2±3.7+6.1+2.1
FH to their backhand · serve +1+6.5±5.6+2.9+3.6
FH to their forehand · serve +1+4.9±5.2+2.8+2.1
FH to the middle · return+3.4±3.8+4.4−1.1
BH to the middle · return+2.6±3.5+0.8+1.8
FH to their forehand · return +1+2.3±5.8+2.5−0.2

Avoid

ShotEdgeOwnTheirs
FH to their backhand · rally−3.9±4.3−1.3−2.6
BH to their backhand · return +1−2.3±5.3−2.0−0.2
BH slice to the middle · rally−2.1±3.3+1.6−3.7
FH to their forehand · rally−1.3±3.7+1.2−2.5
BH to their backhand · rally+0.1±3.9+1.7−1.7

Against Francesca Schiavone-like opponents

Saisai Zheng vMatchesServe pts wonReturn pts won
All charted opponents–56.6%41.9%
Players most similar to Francesca Schiavone4 55.3%39.7%

Similar by tactical fingerprint: Magdalena Frech, Karolina Muchova, Marta Kostyuk, Leylah Fernandez, Petra Martic, Ashleigh Barty, Kiki Bertens, Svetlana Kuznetsova, Amelie Mauresmo. When two players have rarely met, their records against these lookalikes fill the gap.