Game plan

Stefanos Tsitsipas v Karen Khachanov

Every number combines what Stefanos Tsitsipas does well with what Karen Khachanov allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Stefanos Tsitsipas wins, best of 3 50%90%: 25%–75% · best of 5: 50%

Serve points won 66.2% / 66.3% Stefanos / Karen · tour 63.5%

Strengths only, no similarity priors 50%serve 65.5% / 65.5%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Stefanos Tsitsipas's record against Karen Khachanov's tactical lookalikes and in their charted head-to-heads (lookalikes: +0.4 on serve, −1.3 on return vs expectation (3341 points); head-to-head: +4.0 on serve, −0.5 on return vs expectation (495 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	Stefanos	Karen
Direction choice	+0.10 ±0.03 better than 81%	+0.01 ±0.06 better than 59%
Shot selection	+0.35 ±0.07 better than 83%	−0.28 ±0.08 better than 25%
Execution	+0.20 ±0.17 better than 75%	+0.50 ±0.28 better than 84%
Points left on the table	2.52 ±0.06 lower than 58%	2.41 ±0.10 lower than 72%

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: Stefanos Tsitsipas +1.28, Karen Khachanov +0.19. 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.

Stefanos Tsitsipas serving

Deuce court

1st serve	Now	Stefanos wins	v Karen	Matchup	Optimal
Wide	47%	75%	74%	76.6%±2.5	60% ▲
Body	6%	64%	64%	64.7%±5.9	0% ▼
T	47%	79%	76%	79.5%±2.5	40% ▼

Optimal v Karen Khachanov: +0.4±0.4 per 100 first serves (faults included) over the current mix. Serving T every time would read +2.2 per 100 first serves in before the returner adjusts.

Ad court

1st serve	Now	Stefanos wins	v Karen	Matchup	Optimal
Wide	50%	78%	76%	80.8%±2.4	63% ▲
Body	7%	67%	65%	69.2%±6.1	0% ▼
T	43%	74%	72%	73.9%±2.8	37% ▼

Optimal v Karen Khachanov: +0.5±0.4 per 100 first serves (faults included) over the current mix. Serving wide every time would read +3.7 per 100 first serves in before the returner adjusts.

Karen Khachanov serving

Deuce court

1st serve	Now	Karen wins	v Stefanos	Matchup	Optimal
Wide	50%	73%	75%	75.3%±2.4	63% ▲
Body	5%	63%	68%	67.6%±6.6	0% ▼
T	45%	73%	75%	73.5%±2.8	37% ▼

Optimal v Stefanos Tsitsipas: +0.5±0.4 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.2 per 100 first serves in before the returner adjusts.

Ad court

1st serve	Now	Karen wins	v Stefanos	Matchup	Optimal
Wide	52%	74%	74%	75.1%±2.6	65% ▲
Body	6%	61%	64%	62.4%±7.0	0% ▼
T	42%	69%	74%	70.8%±3.1	35% ▼

Optimal v Stefanos Tsitsipas: +0.8±0.4 per 100 first serves (faults included) over the current mix. Serving wide every time would read +2.6 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.

Stefanos Tsitsipas returning

1st serve to the forehand

Return	Now	Tour	Own	v Karen	Value
FH through the middle	52%	+4.3	−0.6	+1.3	+5.0±1.3
FH down the line	21%	+1.7	+1.5	+1.9	+5.1±2.9
FH crosscourt	17%	+5.5	−4.3	+0.9	+2.0±2.8
FH slice through the middle	5%	−4.2	−1.6	+0.1	−5.7±2.0
FH slice crosscourt	3%	−4.3	+0.7	−0.3	−3.9±2.8

Lean FH down the line: +1.6±2.4 per 100 returns v the current mix (3059 returns charted, inside the 90% margin)

1st serve to the backhand

Return	Now	Tour	Own	v Karen	Value
BH through the middle	35%	+6.4	−1.2	+1.7	+7.0±1.3
BH slice through the middle	20%	−4.2	+0.3	+0.6	−3.4±1.5
BH crosscourt	18%	+8.8	−2.3	+0.3	+6.8±2.2
BH down the line	11%	+4.2	−2.2	+0.4	+2.4±3.5
BH slice crosscourt	10%	+0.5	−3.5	+1.5	−1.5±2.3

Lean BH through the middle: +4.3±1.1 per 100 returns v the current mix (4350 returns charted)

2nd serve to the forehand

Return	Now	Tour	Own	v Karen	Value
FH through the middle	49%	−3.5	±0.0	±0.0	−3.4±1.9
FH crosscourt	27%	−0.2	+0.4	+2.3	+2.5±3.8
FH down the line	23%	−1.8	+2.2	+0.6	+1.0±4.0
FH slice through the middle	2%	−12.7	−0.6	−0.3	−13.6±1.8

Lean FH crosscourt: +3.5±3.1 per 100 returns v the current mix (711 returns charted)

2nd serve to the backhand

Return	Now	Tour	Own	v Karen	Value
BH through the middle	36%	−2.9	+0.7	+0.6	−1.6±1.2
BH crosscourt	25%	+1.0	−1.6	−0.8	−1.4±1.8
FH inside-out	12%	+1.0	+0.2	+0.6	+1.7±2.8
FH through the middle	11%	−2.9	+1.5	±0.0	−1.4±1.6
BH down the line	7%	−0.2	−4.7	−1.8	−6.7±4.2

Lean FH inside-out: +3.5±2.6 per 100 returns v the current mix (3046 returns charted)

Karen Khachanov returning

1st serve to the forehand

Return	Now	Tour	Own	v Stefanos	Value
FH through the middle	36%	+4.3	+0.6	−1.2	+3.6±1.4
FH slice through the middle	27%	−4.2	−0.9	−0.6	−5.7±1.5
FH crosscourt	14%	+5.5	+0.4	+1.0	+6.9±2.9
FH down the line	11%	+1.7	+1.1	−2.6	+0.2±3.1
FH slice down the line	7%	−4.3	−0.5	−0.2	−5.0±2.9

Lean FH crosscourt: +6.7±2.6 per 100 returns v the current mix (1496 returns charted)

1st serve to the backhand

Return	Now	Tour	Own	v Stefanos	Value
BH through the middle	46%	+6.4	+0.5	−0.1	+6.7±1.3
BH crosscourt	32%	+8.8	+1.1	−1.1	+8.7±1.9
BH down the line	8%	+4.2	+4.2	−0.8	+7.6±3.7
BH slice through the middle	8%	−4.2	−0.6	−2.5	−7.3±2.0
BH slice crosscourt	4%	+0.5	−2.2	−3.5	−5.2±2.6

Lean BH crosscourt: +3.3±1.5 per 100 returns v the current mix (1202 returns charted)

2nd serve to the forehand

Return	Now	Tour	Own	v Stefanos	Value
FH through the middle	53%	−3.5	−1.0	−0.2	−4.7±1.8
FH crosscourt	26%	−0.2	+0.6	+0.8	+1.2±3.3
FH down the line	18%	−1.8	−0.4	−1.7	−3.9±3.7
FH slice through the middle	3%	−12.7	−2.1	−1.0	−15.9±2.2

Lean FH crosscourt: +4.5±2.7 per 100 returns v the current mix (443 returns charted)

2nd serve to the backhand

Return	Now	Tour	Own	v Stefanos	Value
BH crosscourt	49%	+1.0	+1.1	−1.3	+0.7±1.7
BH through the middle	37%	−2.9	+2.3	−0.4	−1.0±1.4
BH down the line	6%	−0.2	+2.3	−0.4	+1.8±4.2
FH through the middle	5%	−2.9	+0.9	−0.2	−2.3±1.9
FH inside-out	2%	+1.0	−0.2	−1.7	−1.0±2.7

Lean BH down the line: +1.8±4.1 per 100 returns v the current mix (854 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.