RallyIQ

Game plan

Venus Williams v Tatjana Maria

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

Forecast

Venus Williams wins, best of 3 77%90%: 49%–94% · best of 5: 83%
Serve points won 63.1% / 57.2% Venus / Tatjana · tour 58.1%
Strengths only, no similarity priors 79%serve 63.0% / 56.8%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Venus Williams's record against Tatjana Maria's tactical lookalikes and in their charted head-to-heads (lookalikes: +0.4 on serve, −2.2 on return vs expectation (773 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

CareerVenusTatjana
Direction choice−0.04 ±0.07
better than 47%
+0.17 ±0.11
better than 82%
Shot selection+0.66 ±0.09
better than 98%
−4.80 ±0.55
better than 0%
Execution−0.28 ±0.26
better than 45%
+1.80 ±0.44
better than 98%
Points left on the table2.52 ±0.09
lower than 63%
3.32 ±0.20
lower than 3%

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: Venus Williams −3.23, Tatjana Maria +1.85. 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.

Venus Williams serving

Deuce court

1st serveNowVenus winsv TatjanaMatchupOptimal
Wide36%68%61%62.7%±6.536%
Body28%62%61%65.6%±6.813% ▼
T36%71%66%69.3%±5.751% ▲

Optimal v Tatjana Maria: +0.2±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.4 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowVenus winsv TatjanaMatchupOptimal
Wide28%72%58%65.0%±6.243% ▲
Body33%61%58%63.0%±7.033%
T39%64%56%55.5%±7.124% ▼

Optimal v Tatjana Maria: +0.2±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.3 per 100 first serves in before the returner adjusts.

Tatjana Maria serving

Deuce court

1st serveNowTatjana winsv VenusMatchupOptimal
Wide38%70%65%69.2%±5.754% ▲
Body14%60%56%58.0%±9.40% ▼
T47%75%67%74.4%±5.646% ▼

Optimal v Venus Williams: +1.1±0.9 per 100 first serves (faults included) over the current mix. Serving T every time would read +4.3 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowTatjana winsv VenusMatchupOptimal
Wide24%74%64%73.4%±7.424%
Body11%54%59%57.3%±9.90% ▼
T65%68%67%70.4%±5.176% ▲

Optimal v Venus Williams: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.7 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.

Venus Williams returning

1st serve to the forehand

ReturnNowTourOwnv TatjanaValue
FH through the middle57%+4.2−1.7−0.1+2.3±2.1
FH crosscourt23%+5.3−2.5+0.4+3.2±3.7
FH down the line18%+1.5+0.8−6.0−3.7±4.0
BH through the middle1%+5.2+0.4−2.0+3.6±2.6
BH inside-in0%+7.3+0.9−2.5+5.8±3.1

Lean BH through the middle: +2.2±3.1 per 100 returns v the current mix (1680 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv TatjanaValue
BH through the middle54%+6.0−0.4−2.0+3.6±2.2
BH crosscourt24%+7.7+1.3−2.5+6.6±3.2
BH down the line14%+2.2+1.4−6.2−2.6±4.3
BH slice through the middle3%−6.2−0.2+0.3−6.1±2.6
BH slice crosscourt2%−4.2−2.5−1.5−8.2±2.8

Lean BH crosscourt: +3.8±2.8 per 100 returns v the current mix (1311 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv TatjanaValue
FH through the middle49%−3.2±0.0+0.4−2.9±2.5
FH crosscourt24%+0.5−1.3+3.2+2.5±4.2
FH down the line23%−0.6+0.4−0.1−0.3±5.0
BH through the middle3%−1.0−1.6+2.2−0.4±2.2
BH inside-in1%+2.0+1.3±0.0+3.3±3.3

Lean FH crosscourt: +3.3±3.6 per 100 returns v the current mix (554 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv TatjanaValue
BH crosscourt43%+1.5−1.1±0.0+0.4±3.2
BH through the middle41%−2.6−2.3+2.2−2.7±2.4
BH down the line15%−0.5+4.3−1.1+2.7±5.1

Lean BH down the line: +3.2±4.7 per 100 returns v the current mix (596 returns charted, inside the 90% margin)

Tatjana Maria returning

1st serve to the forehand

ReturnNowTourOwnv VenusValue
FH slice through the middle44%−6.7+3.5−1.6−4.9±2.4
FH slice crosscourt19%−6.6+4.2−0.9−3.4±2.8
FH through the middle14%+4.2−3.2−1.7−0.8±2.4
FH crosscourt11%+5.3+0.7−2.7+3.3±3.5
FH slice down the line9%−10.5+3.7+0.7−6.1±3.3

Lean FH crosscourt: +6.4±3.4 per 100 returns v the current mix (254 returns charted)

1st serve to the backhand

ReturnNowTourOwnv VenusValue
BH slice through the middle46%−6.2+4.6−1.5−3.2±2.3
BH slice crosscourt31%−4.2+3.2−2.4−3.5±2.9
BH slice down the line9%−12.5+3.9+0.5−8.0±3.5
BH through the middle8%+6.0−1.0−2.1+2.9±2.2
BH crosscourt4%+7.7+0.9−0.3+8.3±2.8

Lean BH crosscourt: +11.0±3.1 per 100 returns v the current mix (356 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv VenusValue
FH slice through the middle33%−15.2+3.0−0.3−12.5±2.1
FH crosscourt25%+0.5−0.4−1.1−1.0±3.4
FH through the middle16%−3.2−0.3−0.5−3.9±2.1
FH slice crosscourt14%−14.9+1.4±0.0−13.5±1.6
FH slice down the line12%−14.1+1.2±0.0−12.9±1.9

Lean FH crosscourt: +7.5±2.7 per 100 returns v the current mix (76 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv VenusValue
BH slice through the middle34%−11.7+1.2−0.4−10.8±2.0
BH slice crosscourt30%−7.5+0.2+1.1−6.2±2.6
BH through the middle7%−2.6−0.5+0.8−2.3±2.1
BH slice down the line7%−10.6+4.5±0.0−6.1±2.6
BH down the line6%−0.5−1.3−0.5−2.3±4.1

Lean BH through the middle: +4.0±2.2 per 100 returns v the current mix (202 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 grass. Each player's grass record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Venus Williams

Favour

ShotEdgeOwnTheirs
FH volley to their forehand · rally+2.6±7.4+2.7−0.1
BH volley to their backhand · rally+1.4±8.1+6.4−5.0
BH to the middle · return+1.0±3.0+1.3−0.2
FH to the middle · return−0.3±3.1+0.4−0.7
FH to their backhand · rally−0.4±4.3+2.7−3.1
FH to their forehand · serve +1−0.7±4.5+2.8−3.5

Avoid

ShotEdgeOwnTheirs
FH volley to their backhand · rally−10.7±7.9−0.9−9.8
BH slice to the middle · rally−8.5±2.8−3.9−4.6
FH to their backhand · serve +1−8.2±4.8−1.2−7.0
FH to their forehand · return +1−6.5±4.7−0.7−5.8
FH to their backhand · return−6.4±5.3±0.0−6.4

Tatjana Maria

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+6.5±5.2+1.8+4.7
BH slice to their backhand · rally+5.4±3.6+3.9+1.6
FH slice to the middle · rally+5.4±3.5+4.3+1.1
BH slice to their forehand · rally+4.9±4.7+2.8+2.1
FH slice to their forehand · rally+4.6±5.3+3.0+1.6
FH to their forehand · serve +1+3.8±3.8+0.8+3.0

Avoid

ShotEdgeOwnTheirs
FH to the middle · return−7.5±3.4−5.4−2.1
BH slice to the middle · serve +1−1.3±3.4+0.5−1.8
FH to the middle · rally−0.7±2.5+0.5−1.2
BH slice to their backhand · return +1−0.4±4.1+2.8−3.2
BH slice to the middle · rally−0.3±2.9+1.7−2.0

Against Tatjana Maria-like opponents

Venus Williams vMatchesServe pts wonReturn pts won
All charted opponents–57.3%43.8%
Players most similar to Tatjana Maria5 57.1%39.6%

Similar by tactical fingerprint: Karolina Muchova, Viktorija Golubic, Diane Parry, Alison Van Uytvanck, Kirsten Flipkens, Ashleigh Barty, Francesca Schiavone, Roberta Vinci, Justine Henin, Amelie Mauresmo. When two players have rarely met, their records against these lookalikes fill the gap.