Game plan

Ekaterina Alexandrova v Daria Kasatkina

Every number combines what Ekaterina Alexandrova does well with what Daria Kasatkina allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Ekaterina Alexandrova wins, best of 3 88%90%: 60%–98% · best of 5: 93%

Serve points won 57.6% / 48.8% Ekaterina / Daria · tour 55.1%

Strengths only, no similarity priors 91%serve 58.8% / 49.0%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Ekaterina Alexandrova's record against Daria Kasatkina's tactical lookalikes and in their charted head-to-heads (lookalikes: −4.5 on serve, +1.3 on return vs expectation (623 points); head-to-head: −4.8 on serve, −0.1 on return vs expectation (312 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

Career	Ekaterina	Daria
Direction choice	+0.16 ±0.04 better than 81%	+0.08 ±0.07 better than 70%
Shot selection	+0.22 ±0.06 better than 70%	−0.29 ±0.11 better than 22%
Execution	−0.41 ±0.36 better than 38%	+1.39 ±0.30 better than 96%
Points left on the table	2.21 ±0.06 lower than 94%	2.36 ±0.08 lower than 79%

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: Ekaterina Alexandrova +0.33, Daria Kasatkina +1.82. 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.

Ekaterina Alexandrova serving

Deuce court

1st serve	Now	Ekaterina wins	v Daria	Matchup	Optimal
Wide	44%	70%	63%	67.6%±4.1	44%
Body	21%	59%	52%	53.8%±5.8	6% ▼
T	35%	75%	67%	73.6%±4.2	50% ▲

Optimal v Daria Kasatkina: +1.3±0.8 per 100 first serves (faults included) over the current mix. Serving T every time would read +6.8 per 100 first serves in before the returner adjusts.

Ad court

1st serve	Now	Ekaterina wins	v Daria	Matchup	Optimal
Wide	46%	73%	60%	68.8%±4.3	61% ▲
Body	15%	59%	56%	58.7%±6.7	0% ▼
T	39%	63%	63%	61.5%±4.8	39%

Optimal v Daria Kasatkina: +0.7±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.4 per 100 first serves in before the returner adjusts.

Daria Kasatkina serving

Deuce court

1st serve	Now	Daria wins	v Ekaterina	Matchup	Optimal
Wide	43%	63%	67%	63.8%±4.3	58% ▲
Body	25%	57%	59%	57.9%±5.3	13% ▼
T	32%	65%	68%	64.9%±4.9	29% ▼

Optimal v Ekaterina Alexandrova: +0.4±0.7 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 serve	Now	Daria wins	v Ekaterina	Matchup	Optimal
Wide	40%	57%	64%	55.5%±4.5	40%
Body	22%	52%	56%	52.5%±5.7	7% ▼
T	38%	61%	66%	63.2%±4.9	53% ▲

Optimal v Ekaterina Alexandrova: +0.7±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +5.5 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.

Ekaterina Alexandrova returning

1st serve to the forehand

Return	Now	Tour	Own	v Daria	Value
FH through the middle	43%	+4.2	−3.0	+1.8	+2.9±1.8
FH crosscourt	37%	+5.3	−1.1	+1.9	+6.1±2.9
FH down the line	14%	+1.5	+1.5	+2.3	+5.3±3.9
FH slice crosscourt	3%	−6.6	−5.3	−1.1	−13.0±2.6
FH slice through the middle	3%	−6.7	−0.8	−0.2	−7.7±2.5

Lean FH crosscourt: +2.5±2.1 per 100 returns v the current mix (854 returns charted)

1st serve to the backhand

Return	Now	Tour	Own	v Daria	Value
BH through the middle	53%	+6.0	−1.4	+0.3	+4.9±1.6
BH crosscourt	23%	+7.7	−2.4	+3.5	+8.9±2.5
BH down the line	16%	+2.2	−1.1	+0.8	+1.9±3.9
BH slice through the middle	5%	−6.2	−1.0	+2.1	−5.2±2.5
BH slice crosscourt	3%	−4.2	−4.6	−1.1	−9.9±3.0

Lean BH crosscourt: +4.5±2.2 per 100 returns v the current mix (1000 returns charted)

2nd serve to the forehand

Return	Now	Tour	Own	v Daria	Value
FH crosscourt	42%	+0.5	−2.3	+0.8	−1.0±3.9
FH through the middle	35%	−3.2	+0.7	+1.8	−0.7±2.8
FH down the line	21%	−0.6	+0.8	+6.7	+6.9±4.9
FH slice crosscourt	2%	−14.9	−1.1	±0.0	−15.9±1.2

Lean FH down the line: +6.4±4.3 per 100 returns v the current mix (243 returns charted)

2nd serve to the backhand

Return	Now	Tour	Own	v Daria	Value
BH crosscourt	43%	+1.5	+0.2	+1.5	+3.2±2.7
BH through the middle	38%	−2.6	−1.3	+0.8	−3.1±2.1
BH down the line	19%	−0.5	−1.2	−1.5	−3.3±4.7

Lean BH crosscourt: +3.6±2.0 per 100 returns v the current mix (557 returns charted)

Daria Kasatkina returning

1st serve to the forehand

Return	Now	Tour	Own	v Ekaterina	Value
FH through the middle	39%	+4.2	+3.2	+0.8	+8.1±1.9
FH crosscourt	21%	+5.3	+2.1	+1.1	+8.6±3.5
FH slice through the middle	17%	−6.7	+0.9	+1.7	−4.0±2.1
FH down the line	12%	+1.5	+6.0	−2.4	+5.2±4.1
FH slice crosscourt	9%	−6.6	+1.7	+0.4	−4.5±2.7

Lean FH crosscourt: +4.4±3.0 per 100 returns v the current mix (1118 returns charted)

1st serve to the backhand

Return	Now	Tour	Own	v Ekaterina	Value
BH through the middle	49%	+6.0	+2.8	−0.1	+8.8±1.7
BH crosscourt	28%	+7.7	+2.8	−1.4	+9.1±2.6
BH down the line	12%	+2.2	+3.5	−1.1	+4.6±4.1
BH slice through the middle	6%	−6.2	+1.6	−0.9	−5.5±2.5
BH slice crosscourt	3%	−4.2	−1.0	−1.8	−7.0±3.0

Lean BH crosscourt: +2.6±2.1 per 100 returns v the current mix (1078 returns charted)

2nd serve to the forehand

Return	Now	Tour	Own	v Ekaterina	Value
FH through the middle	46%	−3.2	+3.7	−1.3	−0.8±2.6
FH crosscourt	30%	+0.5	+0.6	+1.7	+2.9±4.2
FH down the line	21%	−0.6	+2.6	−3.9	−1.9±4.9
FH slice through the middle	4%	−15.2	+1.3	+0.7	−13.3±1.7

Lean FH crosscourt: +3.3±3.4 per 100 returns v the current mix (226 returns charted, inside the 90% margin)

2nd serve to the backhand

Return	Now	Tour	Own	v Ekaterina	Value
BH through the middle	35%	−2.6	+1.9	−1.5	−2.3±1.9
BH crosscourt	31%	+1.5	+1.1	+1.7	+4.3±2.7
BH down the line	15%	−0.5	+0.7	−2.0	−1.8±4.9
FH inside-out	9%	+1.4	+0.4	−3.9	−2.2±4.0
FH through the middle	7%	−2.7	+1.3	−1.3	−2.6±2.3
FH inside-in	4%	+0.7	+3.3	+1.7	+5.7±4.3

Lean FH inside-in: +5.7±4.4 per 100 returns v the current mix (596 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 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.