RallyIQ

Game plan

Viktoria Hruncakova v Jelena Ostapenko

Every number combines what Viktoria Hruncakova does well with what Jelena Ostapenko allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Viktoria Hruncakova wins, best of 3 52%90%: 18%–84% · best of 5: 53%
Serve points won 54.5% / 54.1% Viktoria / Jelena · tour 55.0%
Strengths only, no similarity priors 52%serve 54.5% / 54.1%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Viktoria Hruncakova's record against Jelena Ostapenko's tactical lookalikes and in their charted head-to-heads. 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

CareerViktoriaJelena
Direction choice+0.30 ±0.09
better than 94%
+0.43 ±0.05
better than 98%
Shot selection−0.38 ±0.16
better than 18%
+0.12 ±0.09
better than 58%
Execution−0.82 ±0.52
better than 23%
−1.29 ±0.51
better than 14%
Points left on the table2.14 ±0.13
lower than 96%
1.88 ±0.07
lower than 100%

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.

Viktoria Hruncakova serving

Deuce court

1st serveNowViktoria winsv JelenaMatchupOptimal
Wide50%68%66%68.7%±6.951% ▲
Body8%54%60%56.7%±12.20% ▼
T43%78%70%79.8%±6.449% ▲

Optimal v Jelena Ostapenko: +0.3±0.5 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +7.3 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowViktoria winsv JelenaMatchupOptimal
Wide43%59%65%57.9%±8.535% ▼
Body7%53%52%48.5%±13.30% ▼
T50%66%64%65.6%±7.765% ▲

Optimal v Jelena Ostapenko: +0.5±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.5 per 100 first serves in before the returner adjusts.

Jelena Ostapenko serving

Deuce court

1st serveNowJelena winsv ViktoriaMatchupOptimal
Wide31%65%68%66.8%±8.029% ▼
Body13%56%59%57.1%±9.60% ▼
T56%68%71%70.4%±7.871% ▲

Optimal v Viktoria Hruncakova: +0.8±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJelena winsv ViktoriaMatchupOptimal
Wide36%67%72%73.4%±7.451% ▲
Body19%58%53%54.7%±9.64% ▼
T45%64%61%60.4%±8.345%

Optimal v Viktoria Hruncakova: +0.6±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +9.4 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.

Viktoria Hruncakova returning

1st serve to the forehand

ReturnNowTourOwnv JelenaValue
FH through the middle39%+4.2−2.0−1.1+1.0±2.7
FH crosscourt31%+5.3−2.5+1.0+3.8±4.1
FH slice through the middle14%−6.7+0.6+1.8−4.4±2.5
FH slice crosscourt9%−6.6−2.1−1.6−10.4±2.5
FH down the line8%+1.5+3.5−1.6+3.4±3.9

Lean FH crosscourt: +3.5±3.0 per 100 returns v the current mix (160 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JelenaValue
BH through the middle49%+6.0−2.1+0.2+4.2±2.4
BH crosscourt21%+7.7+1.2+1.3+10.2±3.1
BH down the line13%+2.2+0.5+2.1+4.8±4.1
BH slice crosscourt11%−4.2−0.5+2.7−1.9±2.8
BH slice through the middle7%−6.2+0.2+1.7−4.3±2.2

Lean BH crosscourt: +5.9±2.8 per 100 returns v the current mix (131 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv JelenaValue
BH through the middle44%−2.6+1.1+0.4−1.1±2.5
BH crosscourt40%+1.5−1.0+2.2+2.7±3.2
BH down the line16%−0.5+0.5+10.4+10.4±4.5

Lean BH crosscourt: +0.4±2.3 per 100 returns v the current mix (85 returns charted, inside the 90% margin)

Jelena Ostapenko returning

1st serve to the forehand

ReturnNowTourOwnv ViktoriaValue
FH through the middle35%+4.2−2.2+2.3+4.3±2.7
FH crosscourt29%+5.3+4.8+0.4+10.5±3.9
FH down the line21%+1.5−2.7−2.1−3.2±4.2
FH slice through the middle8%−6.7−1.3+0.6−7.5±2.6
FH slice crosscourt4%−6.6−0.5−0.8−7.9±2.6

Lean FH crosscourt: +7.8±3.1 per 100 returns v the current mix (727 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ViktoriaValue
BH through the middle37%+6.0−3.0−0.4+2.7±2.6
BH crosscourt29%+7.7−1.5+0.5+6.7±3.2
BH down the line14%+2.2−2.8+0.3−0.4±4.5
BH slice through the middle11%−6.2−1.9−1.3−9.5±2.5
BH slice crosscourt6%−4.2−2.6−0.6−7.4±2.9

Lean BH crosscourt: +5.7±2.6 per 100 returns v the current mix (682 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ViktoriaValue
FH crosscourt57%+0.5−3.8+1.5−1.8±4.3
FH through the middle24%−3.2−2.1−1.6−6.9±3.1
FH down the line19%−0.6−3.8−1.5−5.9±5.1

Lean FH crosscourt: +2.0±2.2 per 100 returns v the current mix (202 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv ViktoriaValue
BH crosscourt49%+1.5−0.4−1.4−0.3±3.3
BH through the middle29%−2.6−2.2+0.8−4.0±2.7
BH down the line19%−0.5−5.0+0.4−5.2±5.1
FH inside-in1%+0.7−0.6+1.5+1.6±3.9
FH through the middle1%−2.7−0.2−1.6−4.5±2.2

Lean BH crosscourt: +2.1±2.1 per 100 returns v the current mix (417 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 clay. Each player's clay record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Viktoria Hruncakova

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+10.0±5.9+2.3+7.7
FH to their forehand · return +1+3.7±4.5+1.8+1.9
BH to their backhand · rally+2.2±4.4+0.8+1.4
BH to their backhand · return+2.1±4.3−0.3+2.5
FH to their forehand · rally−0.2±4.6−3.3+3.1
FH to the middle · serve +1−0.9±3.4−0.8−0.1

Avoid

ShotEdgeOwnTheirs
BH to their backhand · return +1−9.9±4.7−6.1−3.8
BH to their forehand · rally−6.9±6.3−0.8−6.2
FH to their backhand · serve +1−6.7±5.5−5.3−1.4
FH to the middle · return−2.7±3.6−2.3−0.5
BH to their backhand · serve +1−2.5±4.7±0.0−2.5

Jelena Ostapenko

Favour

ShotEdgeOwnTheirs
FH to their backhand · rally+3.6±5.0+1.1+2.5
FH to their forehand · serve +1+3.1±5.1−2.8+5.9
FH to their forehand · return+1.2±5.5−2.3+3.5
BH to the middle · rally−0.2±3.3−2.1+1.9
FH to the middle · return−0.4±3.6−0.3−0.1
FH to the middle · return +1−0.6±3.8−3.1+2.5

Avoid

ShotEdgeOwnTheirs
BH to the middle · return−5.3±3.3−4.6−0.7
BH to their backhand · serve +1−4.6±3.9−1.3−3.4
FH to the middle · serve +1−4.3±3.6−2.3−2.0
FH to their backhand · serve +1−3.3±5.4−5.2+1.9
BH to the middle · serve +1−2.7±3.3−0.8−1.9

Against Jelena Ostapenko-like opponents

Viktoria Hruncakova vMatchesServe pts wonReturn pts won
All charted opponents–58.5%43.4%

Similar by tactical fingerprint: Naomi Osaka, Amanda Anisimova, Talia Gibson, Dayana Yastremska, Veronika Kudermetova, Petra Kvitova, Ana Konjuh, Julia Goerges, Daniela Hantuchova. When two players have rarely met, their records against these lookalikes fill the gap.