RallyIQ

Game plan

Louisa Chirico v Venus Williams

Every number combines what Louisa Chirico does well with what Venus Williams allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Louisa Chirico wins, best of 3 24%90%: 7%–53% · best of 5: 18%
Serve points won 53.7% / 59.1% Louisa / Venus · tour 56.4%
Strengths only, no similarity priors 27%serve 54.0% / 58.7%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Louisa Chirico's record against Venus Williams's tactical lookalikes and in their charted head-to-heads (lookalikes: −10.1 on serve, −13.5 on return vs expectation (92 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

CareerLouisaVenus
Direction choice−0.13 ±0.14
better than 30%
−0.04 ±0.07
better than 47%
Shot selection+0.09 ±0.19
better than 54%
+0.66 ±0.09
better than 98%
Execution−0.96 ±1.01
better than 19%
−0.28 ±0.26
better than 45%

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.

Louisa Chirico serving

Deuce court

1st serveNowLouisa winsv VenusMatchupOptimal
Wide42%66%65%65.5%±8.855% ▲
Body29%64%56%62.2%±9.814% ▼
T28%68%67%67.3%±10.331% ▲

Optimal v Venus Williams: +0.6±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.2 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowLouisa winsv VenusMatchupOptimal
Wide33%67%64%65.4%±9.132%
Body26%55%59%58.0%±9.911% ▼
T42%65%67%67.3%±8.557% ▲

Optimal v Venus Williams: +0.7±1.0 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.

Venus Williams serving

Deuce court

1st serveNowVenus winsv LouisaMatchupOptimal
Wide36%68%69%70.6%±8.751% ▲
Body28%62%57%62.1%±10.013% ▼
T36%71%62%64.8%±9.636%

Optimal v Louisa Chirico: +0.9±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowVenus winsv LouisaMatchupOptimal
Wide28%72%58%65.2%±9.028%
Body33%61%56%60.4%±10.718% ▼
T39%64%72%71.2%±9.154% ▲

Optimal v Louisa Chirico: +0.7±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +5.3 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.

Louisa Chirico returning

1st serve to the forehand

ReturnNowTourOwnv VenusValue
FH through the middle65%+4.2−1.2−1.7+1.3±2.5
FH crosscourt17%+5.3−2.1−2.7+0.5±3.2
FH down the line12%+1.5+0.8−1.3+1.0±3.3
FH slice through the middle6%−6.7−0.3−1.6−8.7±2.0

Lean FH through the middle: +0.8±1.1 per 100 returns v the current mix (83 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv VenusValue
BH through the middle52%+6.0−1.3−2.1+2.6±2.3
BH crosscourt20%+7.7+0.5−0.3+7.9±2.9
BH down the line12%+2.2−0.2−3.9−1.9±3.4
BH slice through the middle10%−6.2+0.3−1.5−7.5±2.2
BH slice crosscourt6%−4.2−0.8−2.4−7.4±2.5

Lean BH crosscourt: +6.4±2.7 per 100 returns v the current mix (90 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv VenusValue
BH crosscourt47%+1.5+0.3+2.8+4.6±3.2
BH through the middle38%−2.6+1.1+0.8−0.7±2.3
FH through the middle15%−2.7−0.3−0.5−3.4±1.8

Lean BH crosscourt: +3.2±1.9 per 100 returns v the current mix (66 returns charted)

Venus Williams returning

1st serve to the forehand

ReturnNowTourOwnv LouisaValue
FH through the middle57%+4.2−1.7−3.6−1.2±2.4
FH crosscourt23%+5.3−2.5−3.9−1.2±3.5
FH down the line18%+1.5+0.8−0.9+1.5±3.9
BH through the middle1%+5.2+0.4−0.9+4.7±2.7
BH inside-in0%+7.3+0.9+0.4+8.6±2.9

Lean BH through the middle: +5.3±3.2 per 100 returns v the current mix (1680 returns charted)

1st serve to the backhand

ReturnNowTourOwnv LouisaValue
BH through the middle54%+6.0−0.4−0.9+4.7±2.3
BH crosscourt24%+7.7+1.3+0.4+9.4±3.0
BH down the line14%+2.2+1.4−4.6−1.0±4.1
BH slice through the middle3%−6.2−0.2−0.2−6.6±2.5
BH slice crosscourt2%−4.2−2.5+0.3−6.4±2.4

Lean BH crosscourt: +5.2±2.7 per 100 returns v the current mix (1311 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv LouisaValue
FH through the middle49%−3.2±0.0−0.2−3.4±2.7
FH crosscourt24%+0.5−1.3+0.7±0.0±4.2
FH down the line23%−0.6+0.4−3.0−3.2±4.7
BH through the middle3%−1.0−1.6−0.1−2.7±2.3
BH inside-in1%+2.0+1.3+2.2+5.5±3.2

Lean FH crosscourt: +2.4±3.6 per 100 returns v the current mix (554 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv LouisaValue
BH crosscourt43%+1.5−1.1+2.2+2.6±3.1
BH through the middle41%−2.6−2.3−0.1−5.0±2.5
BH down the line15%−0.5+4.3−1.2+2.6±4.9

Lean BH down the line: +3.2±4.5 per 100 returns v the current mix (596 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.

Louisa Chirico

Favour

ShotEdgeOwnTheirs
BH to their backhand · rally+2.2±3.4+0.9+1.3
FH to the middle · rally+2.1±2.9+1.3+0.8
FH to their forehand · serve +1+1.5±4.8+2.7−1.2
BH to the middle · rally+0.8±2.8+0.9−0.1
BH to their forehand · rally+0.7±5.4+0.2+0.6
FH to their backhand · rally+0.5±4.5+1.4−0.9

Avoid

ShotEdgeOwnTheirs
FH to the middle · return−5.8±3.1−4.2−1.6
FH to their forehand · rally−1.2±3.8−2.4+1.2
BH to the middle · return−1.1±3.0−0.4−0.8
FH to their backhand · serve +1−0.9±5.0−1.4+0.5
FH to their backhand · rally+0.5±4.5+1.4−0.9

Venus Williams

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+4.8±4.9+0.9+3.9
FH to the middle · rally−0.6±3.0−1.0+0.4
FH to their forehand · rally−1.6±3.7−0.7−0.9
BH to their backhand · rally−1.8±3.6+0.4−2.2
BH to the middle · return−2.4±3.0−2.1−0.4
BH to the middle · rally−3.1±2.7−1.1−2.1

Avoid

ShotEdgeOwnTheirs
FH to the middle · return−4.3±3.2−1.8−2.5
FH to their backhand · rally−3.8±4.3−1.0−2.8
BH to the middle · rally−3.1±2.7−1.1−2.1
BH to the middle · return−2.4±3.0−2.1−0.4
BH to their backhand · rally−1.8±3.6+0.4−2.2

Against Venus Williams-like opponents

Louisa Chirico vMatchesServe pts wonReturn pts won
All charted opponents–57.5%45.7%
Players most similar to Venus Williams1 45.7%30.4%

Similar by tactical fingerprint: Coco Gauff, Iga Swiatek, Elise Mertens, Anastasia Pavlyuchenkova, Veronika Kudermetova, Eugenie Bouchard, Simona Halep, Maria Sharapova, Lindsay Davenport. When two players have rarely met, their records against these lookalikes fill the gap.