RallyIQ

Game plan

Iga Swiatek v Varvara Gracheva

Every number combines what Iga Swiatek does well with what Varvara Gracheva allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Iga Swiatek wins, best of 3 98%90%: 90%–100% · best of 5: 100%
Serve points won 62.7% / 47.0% Iga / Varvara · tour 56.3%
Strengths only, no similarity priors 97%serve 61.4% / 47.5%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Iga Swiatek's record against Varvara Gracheva's tactical lookalikes and in their charted head-to-heads (lookalikes: +7.7 on serve, +2.2 on return vs expectation (669 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

CareerIgaVarvara
Direction choice+0.17 ±0.03
better than 82%
+0.06 ±0.12
better than 65%
Shot selection+0.32 ±0.04
better than 81%
+0.04 ±0.19
better than 49%
Execution+0.91 ±0.19
better than 89%
−0.42 ±0.65
better than 37%
Points left on the table2.13 ±0.04
lower than 96%
2.32 ±0.17
lower than 84%

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: Iga Swiatek +1.71, Varvara Gracheva −1.45. 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.

Iga Swiatek serving

Deuce court

1st serveNowIga winsv VarvaraMatchupOptimal
Wide40%69%65%68.3%±5.855% ▲
Body28%64%51%57.7%±7.812% ▼
T32%73%66%71.3%±6.933%

Optimal v Varvara Gracheva: +0.7±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowIga winsv VarvaraMatchupOptimal
Wide38%72%62%68.8%±6.238%
Body29%63%60%66.0%±7.614% ▼
T33%68%66%69.8%±6.548% ▲

Optimal v Varvara Gracheva: +0.6±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.4 per 100 first serves in before the returner adjusts.

Varvara Gracheva serving

Deuce court

1st serveNowVarvara winsv IgaMatchupOptimal
Wide40%64%60%58.4%±6.840%
Body30%52%51%46.5%±7.215% ▼
T30%64%61%56.5%±7.945% ▲

Optimal v Iga Swiatek: +0.5±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.2 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowVarvara winsv IgaMatchupOptimal
Wide35%60%62%56.0%±8.050% ▲
Body27%48%51%42.3%±7.912% ▼
T38%56%59%50.3%±7.338%

Optimal v Iga Swiatek: +0.4±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +5.9 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.

Iga Swiatek returning

1st serve to the forehand

ReturnNowTourOwnv VarvaraValue
FH through the middle51%+4.2+0.8+3.3+8.2±2.1
FH crosscourt25%+5.3+0.1−2.1+3.3±3.4
FH down the line15%+1.5−2.7+1.1±0.0±3.8
FH slice through the middle6%−6.7−0.5+2.4−4.9±2.2
FH slice crosscourt3%−6.6−3.5+0.3−9.8±2.4

Lean FH through the middle: +3.9±1.5 per 100 returns v the current mix (3485 returns charted)

1st serve to the backhand

ReturnNowTourOwnv VarvaraValue
BH through the middle50%+6.0+0.4+0.3+6.8±2.0
BH crosscourt32%+7.7+0.7+0.8+9.2±2.8
BH down the line10%+2.2+2.9−0.1+5.0±4.0
BH slice through the middle4%−6.2−0.6+0.7−6.2±2.3
BH slice crosscourt3%−4.2−3.2±0.0−7.3±2.0

Lean BH crosscourt: +3.1±2.2 per 100 returns v the current mix (3016 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv VarvaraValue
FH through the middle41%−3.2+1.2+0.6−1.4±2.6
FH crosscourt40%+0.5−0.6+3.2+3.1±3.7
FH down the line17%−0.6−1.4+0.5−1.5±4.9
FH slice through the middle1%−15.2±0.0±0.0−15.2±1.6
FH slice crosscourt1%−14.9−0.1±0.0−15.0±1.5

Lean FH crosscourt: +3.1±2.6 per 100 returns v the current mix (1030 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv VarvaraValue
BH crosscourt47%+1.5+1.2−1.1+1.6±2.8
BH through the middle33%−2.6+0.2−0.1−2.5±2.2
BH down the line19%−0.5+4.4−2.5+1.5±4.5
FH inside-in1%+0.7−3.3+3.2+0.6±4.3
FH through the middle0%−2.7−1.1+0.6−3.2±2.3

Lean BH crosscourt: +1.5±1.9 per 100 returns v the current mix (1717 returns charted, inside the 90% margin)

Varvara Gracheva returning

1st serve to the forehand

ReturnNowTourOwnv IgaValue
FH through the middle46%+4.2+1.0−1.2+4.0±2.2
FH crosscourt22%+5.3+0.4−0.6+5.1±3.4
FH down the line16%+1.5−1.7−3.6−3.7±3.7
FH slice through the middle9%−6.7−0.7−0.9−8.4±2.1
FH slice crosscourt5%−6.6+1.0−0.3−6.0±2.3

Lean FH crosscourt: +4.2±2.9 per 100 returns v the current mix (223 returns charted)

1st serve to the backhand

ReturnNowTourOwnv IgaValue
BH through the middle42%+6.0+0.8−1.3+5.5±2.2
BH crosscourt32%+7.7+2.2−1.2+8.7±2.8
BH down the line10%+2.2−0.7−2.7−1.2±3.4
BH slice through the middle9%−6.2−0.6−0.8−7.6±2.2
BH slice crosscourt7%−4.2+0.1−5.0−9.1±2.7

Lean BH crosscourt: +5.1±2.2 per 100 returns v the current mix (183 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv IgaValue
FH through the middle44%−3.2−0.3−0.4−3.8±2.2
FH crosscourt41%+0.5−1.5−2.3−3.3±3.4
FH down the line15%−0.6+2.8−0.2+2.0±3.4

Lean FH crosscourt: −0.5±2.3 per 100 returns v the current mix (41 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv IgaValue
BH through the middle45%−2.6+0.2±0.0−2.4±2.1
BH crosscourt38%+1.5+1.4−0.9+2.0±2.8
BH down the line16%−0.5−0.9−0.8−2.2±3.8

Lean BH crosscourt: +2.7±2.1 per 100 returns v the current mix (99 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.

Iga Swiatek

Favour

ShotEdgeOwnTheirs
FH to their backhand · rally+5.0±2.4+1.8+3.2
FH to their backhand · return +1+4.7±3.3+0.4+4.3
BH to their forehand · rally+4.3±3.2+3.0+1.4
FH to the middle · return+4.3±1.9+1.0+3.3
FH to their forehand · return +1+2.9±3.0+1.0+1.8
BH to their backhand · serve +1+2.8±2.8+1.2+1.7

Avoid

ShotEdgeOwnTheirs
BH slice to their backhand · rally−3.2±2.6−3.4+0.2
BH to their backhand · return +1−1.2±2.6+0.5−1.7
BH to the middle · return +1−0.3±2.0−0.4+0.2
FH to their backhand · return−0.1±3.3−1.1+0.9
FH to their forehand · return+0.1±3.3−0.4+0.5

Varvara Gracheva

Favour

ShotEdgeOwnTheirs
BH to the middle · return +1+0.8±2.0+1.2−0.4
BH to the middle · return+0.6±1.7+1.6−1.0
BH to their backhand · return +1+0.5±2.7+1.1−0.6
FH to the middle · rally+0.4±1.7+0.1+0.4
FH to the middle · return+0.3±1.9+0.8−0.5
BH to their backhand · serve +1±0.0±2.5+0.6−0.6

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−5.6±3.1−3.5−2.1
FH to their forehand · rally−3.3±1.9−2.1−1.2
FH to their forehand · serve +1−3.1±2.8−1.5−1.6
FH to their backhand · serve +1−2.7±3.2−0.7−1.9
FH to the middle · return +1−2.1±2.1−1.9−0.2

Against Varvara Gracheva-like opponents

Iga Swiatek vMatchesServe pts wonReturn pts won
All charted opponents–62.5%48.9%
Players most similar to Varvara Gracheva6 70.2%51.4%

Similar by tactical fingerprint: Iva Jovic, Anastasia Potapova, Anna Blinkova, Kimberly Birrell, Emma Raducanu, Yue Yuan, Eugenie Bouchard, R, Andrea Petkovic. When two players have rarely met, their records against these lookalikes fill the gap.