Game plan
Madison Keys v Barbora Krejcikova
Every number combines what Madison Keys does well with what Barbora Krejcikova allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective
Forecast
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 Madison Keys's record against Barbora Krejcikova's tactical lookalikes and in their charted head-to-heads (lookalikes: +1.0 on serve, −4.3 on return vs expectation (653 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 | Madison | Barbora |
|---|---|---|
| Direction choice | +0.06 ±0.06 better than 67% | +0.19 ±0.09 better than 84% |
| Shot selection | +0.34 ±0.10 better than 83% | −0.47 ±0.17 better than 11% |
| Execution | −0.69 ±0.38 better than 28% | −0.35 ±0.52 better than 40% |
| Points left on the table | 2.58 ±0.09 lower than 54% | 2.49 ±0.13 lower than 66% |
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: Madison Keys −2.36, Barbora Krejcikova −1.49. 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.
Madison Keys serving
Deuce court
| 1st serve | Now | Madison wins | v Barbora | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 50% | 69% | 71% | 74.1%±4.3 | 59% ▲ |
| Body | 14% | 54% | 58% | 54.7%±7.8 | 0% ▼ |
| T | 37% | 78% | 67% | 78.1%±4.4 | 41% ▲ |
Optimal v Barbora Krejcikova: +1.5±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +5.2 per 100 first serves in before the returner adjusts.
Ad court
| 1st serve | Now | Madison wins | v Barbora | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 41% | 65% | 70% | 69.4%±5.3 | 37% ▼ |
| Body | 11% | 54% | 56% | 53.7%±8.6 | 0% ▼ |
| T | 48% | 71% | 62% | 68.9%±4.9 | 63% ▲ |
Optimal v Barbora Krejcikova: +1.1±0.8 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.8 per 100 first serves in before the returner adjusts.
Barbora Krejcikova serving
Deuce court
| 1st serve | Now | Barbora wins | v Madison | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 41% | 70% | 70% | 73.2%±4.7 | 45% ▲ |
| Body | 12% | 64% | 57% | 64.5%±7.4 | 0% ▼ |
| T | 47% | 75% | 67% | 74.1%±4.6 | 55% ▲ |
Optimal v Madison Keys: +0.6±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.5 per 100 first serves in before the returner adjusts.
Ad court
| 1st serve | Now | Barbora wins | v Madison | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 51% | 67% | 64% | 66.4%±4.9 | 56% ▲ |
| Body | 10% | 57% | 56% | 57.3%±9.1 | 0% ▼ |
| T | 39% | 67% | 65% | 68.0%±5.4 | 44% ▲ |
Optimal v Madison Keys: +0.3±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.9 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.
Madison Keys returning
1st serve to the forehand
| Return | Now | Tour | Own | v Barbora | Value |
|---|---|---|---|---|---|
| FH through the middle | 44% | +4.2 | −6.1 | +0.2 | −1.8±2.2 |
| FH crosscourt | 28% | +5.3 | −2.5 | +1.1 | +3.9±3.8 |
| FH down the line | 11% | +1.5 | −4.7 | −3.1 | −6.3±4.5 |
| FH slice through the middle | 11% | −6.7 | −1.1 | +0.8 | −7.0±2.5 |
| FH slice crosscourt | 3% | −6.6 | −0.4 | +0.7 | −6.2±2.6 |
Lean FH crosscourt: +5.5±2.9 per 100 returns v the current mix (845 returns charted)
1st serve to the backhand
| Return | Now | Tour | Own | v Barbora | Value |
|---|---|---|---|---|---|
| BH through the middle | 52% | +6.0 | −1.6 | +0.4 | +4.8±1.8 |
| BH crosscourt | 20% | +7.7 | +1.1 | −1.9 | +6.9±2.9 |
| BH down the line | 17% | +2.2 | −1.7 | +1.4 | +1.9±4.0 |
| BH slice through the middle | 5% | −6.2 | −1.8 | −1.3 | −9.3±2.5 |
| BH slice down the line | 3% | −12.5 | −2.0 | +1.4 | −13.1±3.4 |
Lean BH crosscourt: +3.6±2.6 per 100 returns v the current mix (1240 returns charted)
2nd serve to the forehand
| Return | Now | Tour | Own | v Barbora | Value |
|---|---|---|---|---|---|
| FH through the middle | 38% | −3.2 | +2.5 | −0.9 | −1.6±2.9 |
| FH crosscourt | 30% | +0.5 | +1.4 | +0.9 | +2.8±4.5 |
| FH down the line | 21% | −0.6 | −4.4 | +1.2 | −3.8±5.2 |
| FH slice through the middle | 6% | −15.2 | +1.4 | −1.3 | −15.1±2.0 |
| FH slice crosscourt | 4% | −14.9 | +0.5 | ±0.0 | −14.4±1.5 |
Lean FH crosscourt: +4.9±3.5 per 100 returns v the current mix (217 returns charted)
2nd serve to the backhand
| Return | Now | Tour | Own | v Barbora | Value |
|---|---|---|---|---|---|
| BH through the middle | 40% | −2.6 | −0.7 | −0.6 | −3.9±2.1 |
| BH crosscourt | 29% | +1.5 | +0.8 | −2.1 | +0.2±3.2 |
| BH down the line | 21% | −0.5 | +1.7 | −0.4 | +0.8±4.9 |
| FH inside-out | 4% | +1.4 | +2.7 | +1.2 | +5.2±4.1 |
| FH through the middle | 4% | −2.7 | +0.1 | −0.9 | −3.5±2.4 |
Lean FH inside-out: +6.3±4.3 per 100 returns v the current mix (569 returns charted)
Barbora Krejcikova returning
1st serve to the forehand
| Return | Now | Tour | Own | v Madison | Value |
|---|---|---|---|---|---|
| FH slice through the middle | 29% | −6.7 | +3.4 | +0.8 | −2.5±2.2 |
| FH through the middle | 24% | +4.2 | −4.6 | −0.4 | −0.9±2.4 |
| FH crosscourt | 17% | +5.3 | −5.2 | −1.5 | −1.4±3.7 |
| FH slice crosscourt | 15% | −6.6 | +1.8 | +0.2 | −4.6±2.8 |
| FH down the line | 11% | +1.5 | −4.2 | ±0.0 | −2.6±4.3 |
Lean FH through the middle: +1.6±2.1 per 100 returns v the current mix (564 returns charted, inside the 90% margin)
1st serve to the backhand
| Return | Now | Tour | Own | v Madison | Value |
|---|---|---|---|---|---|
| BH through the middle | 49% | +6.0 | +0.1 | −0.5 | +5.7±2.0 |
| BH crosscourt | 22% | +7.7 | −0.4 | +1.1 | +8.5±3.0 |
| BH down the line | 11% | +2.2 | +0.7 | −0.8 | +2.1±4.5 |
| BH slice through the middle | 10% | −6.2 | −2.0 | −2.0 | −10.2±2.5 |
| BH slice crosscourt | 4% | −4.2 | +0.4 | −0.6 | −4.3±2.9 |
Lean BH crosscourt: +5.2±2.6 per 100 returns v the current mix (493 returns charted)
2nd serve to the forehand
| Return | Now | Tour | Own | v Madison | Value |
|---|---|---|---|---|---|
| FH through the middle | 47% | −3.2 | −0.8 | +0.8 | −3.2±2.8 |
| FH crosscourt | 36% | +0.5 | −1.0 | −0.3 | −0.7±4.1 |
| FH down the line | 17% | −0.6 | −1.4 | −2.5 | −4.5±4.8 |
Lean FH crosscourt: +1.8±3.0 per 100 returns v the current mix (142 returns charted, inside the 90% margin)
2nd serve to the backhand
| Return | Now | Tour | Own | v Madison | Value |
|---|---|---|---|---|---|
| BH through the middle | 47% | −2.6 | −0.8 | −0.2 | −3.6±2.2 |
| BH crosscourt | 38% | +1.5 | −1.3 | −0.4 | −0.2±2.9 |
| BH down the line | 12% | −0.5 | +0.6 | −2.9 | −2.9±5.0 |
| FH through the middle | 2% | −2.7 | −1.4 | +0.8 | −3.2±1.8 |
Lean BH crosscourt: +2.0±2.2 per 100 returns v the current mix (281 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.
Madison Keys
Favour
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| FH to their forehand · return +1 | +1.7±3.1 | +1.7 | ±0.0 |
| FH to their forehand · return | +1.6±3.5 | +0.1 | +1.5 |
| BH to their forehand · return | +0.8±3.2 | +0.2 | +0.6 |
| FH slice to the middle · rally | +0.5±2.7 | +1.5 | −1.0 |
| FH to the middle · return +1 | ±0.0±2.2 | −0.2 | +0.2 |
| FH to their backhand · serve +1 | ±0.0±2.7 | +2.0 | −2.1 |
Avoid
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| BH to their forehand · return +1 | −6.2±4.1 | −4.7 | −1.5 |
| BH to the middle · rally | −6.2±1.6 | −3.1 | −3.1 |
| BH to the middle · return +1 | −5.8±2.1 | −3.2 | −2.6 |
| BH to their backhand · serve +1 | −5.1±2.8 | −1.7 | −3.4 |
| BH to their forehand · serve +1 | −5.0±3.8 | −3.8 | −1.2 |
Barbora Krejcikova
Favour
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| FH slice to the middle · return | +4.2±2.1 | +3.0 | +1.1 |
| FH slice to their forehand · return | +2.6±2.8 | +2.0 | +0.7 |
| FH to their forehand · serve +1 | +1.6±2.7 | +3.5 | −1.9 |
| BH slice to the middle · return +1 | +1.5±2.4 | +0.1 | +1.3 |
| FH slice to the middle · rally | +1.0±2.6 | −0.4 | +1.4 |
| FH to their backhand · rally | −0.1±2.5 | +1.0 | −1.1 |
Avoid
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| FH to their forehand · return | −5.4±3.3 | −4.3 | −1.1 |
| BH to the middle · return +1 | −4.4±2.1 | −5.0 | +0.6 |
| BH slice to their backhand · rally | −4.1±2.8 | −1.4 | −2.8 |
| FH to the middle · return | −4.1±1.9 | −4.3 | +0.2 |
| BH to their forehand · return | −3.9±3.8 | −1.6 | −2.2 |
Against Barbora Krejcikova-like opponents
| Madison Keys v | Matches | Serve pts won | Return pts won |
|---|---|---|---|
| All charted opponents | – | 60.8% | 42.4% |
| Players most similar to Barbora Krejcikova | 5 | 60.1% | 34.9% |
Similar by tactical fingerprint: Elena Rybakina, Maya Joint, Clara Tauson, Olivia Gadecki, Veronika Kudermetova, Petra Kvitova, Bernarda Pera, Rebecca Marino, Anett Kontaveit, Johanna Konta. When two players have rarely met, their records against these lookalikes fill the gap.