RallyIQ

Game plan

Magdalena Frech v Diane Parry

Every number combines what Magdalena Frech does well with what Diane Parry allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Magdalena Frech wins, best of 3 47%90%: 19%–76% · best of 5: 46%
Serve points won 59.0% / 59.6% Magdalena / Diane · tour 56.3%
Strengths only, no similarity priors 47%serve 59.0% / 59.6%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Magdalena Frech's record against Diane Parry'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

CareerMagdalenaDiane
Direction choice+0.14 ±0.09
better than 78%
−0.09 ±0.09
better than 38%
Shot selection−0.42 ±0.11
better than 15%
−1.27 ±0.44
better than 2%
Execution+1.36 ±0.49
better than 96%
−0.23 ±0.93
better than 47%
Points left on the table2.39 ±0.15
lower than 78%
3.19 ±0.22
lower than 5%

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: Magdalena Frech +0.43, Diane Parry +0.40. 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.

Magdalena Frech serving

Deuce court

1st serveNowMagdalena winsv DianeMatchupOptimal
Wide37%62%74%70.8%±7.852% ▲
Body12%59%57%58.8%±11.30% ▼
T51%63%71%65.9%±8.148% ▼

Optimal v Diane Parry: +0.7±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +4.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMagdalena winsv DianeMatchupOptimal
Wide47%66%72%72.5%±7.262% ▲
Body13%48%56%47.8%±12.20% ▼
T40%56%68%59.6%±9.438% ▼

Optimal v Diane Parry: +1.3±1.0 per 100 first serves (faults included) over the current mix. Serving wide every time would read +8.3 per 100 first serves in before the returner adjusts.

Diane Parry serving

Deuce court

1st serveNowDiane winsv MagdalenaMatchupOptimal
Wide43%68%68%69.7%±7.556% ▲
Body18%58%57%57.6%±10.23% ▼
T39%71%71%74.3%±7.941% ▲

Optimal v Magdalena Frech: +1.1±1.0 per 100 first serves (faults included) over the current mix. Serving T every time would read +5.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowDiane winsv MagdalenaMatchupOptimal
Wide34%61%66%61.7%±8.736% ▲
Body15%57%61%61.2%±10.70% ▼
T51%63%68%66.6%±8.164% ▲

Optimal v Magdalena Frech: +0.5±1.1 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.4 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.

Magdalena Frech returning

1st serve to the forehand

ReturnNowTourOwnv DianeValue
FH through the middle39%+4.2+2.5−2.0+4.6±2.9
FH slice through the middle25%−6.7+1.5+0.6−4.6±2.5
FH down the line16%+1.5−0.6−3.4−2.5±4.7
FH crosscourt14%+5.3+0.1+3.1+8.5±4.4
FH slice down the line4%−10.5+1.5+1.8−7.2±2.8

Lean FH crosscourt: +7.5±4.1 per 100 returns v the current mix (317 returns charted)

1st serve to the backhand

ReturnNowTourOwnv DianeValue
BH through the middle41%+6.0+2.1−0.1+8.0±2.7
BH crosscourt27%+7.7+1.5+1.8+11.1±3.6
BH slice through the middle13%−6.2+1.2−0.4−5.4±2.5
BH down the line8%+2.2+2.1−0.1+4.1±4.6
BH slice crosscourt8%−4.2−0.9+1.2−3.9±2.8

Lean BH crosscourt: +5.7±2.9 per 100 returns v the current mix (300 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv DianeValue
FH through the middle49%−3.2+1.1−0.1−2.2±3.1
FH crosscourt26%+0.5+0.1+1.5+2.2±4.0
FH down the line25%−0.6+1.8+0.8+2.0±4.4

Lean FH crosscourt: +2.2±3.5 per 100 returns v the current mix (68 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv DianeValue
BH crosscourt37%+1.5+1.2−0.2+2.5±3.6
BH down the line34%−0.5+3.5+0.1+3.1±5.2
BH through the middle29%−2.6+1.5−1.4−2.5±2.7

Lean BH down the line: +1.9±3.8 per 100 returns v the current mix (139 returns charted, inside the 90% margin)

Diane Parry returning

1st serve to the forehand

ReturnNowTourOwnv MagdalenaValue
FH through the middle37%+4.2−1.3+2.3+5.2±2.9
FH down the line27%+1.5−0.1+0.5+1.9±4.7
FH slice through the middle21%−6.7+0.1+1.2−5.4±2.5
FH slice crosscourt6%−6.6+0.8−0.6−6.4±2.2
FH crosscourt5%+5.3−4.0+2.0+3.3±3.7

Lean FH through the middle: +4.6±2.3 per 100 returns v the current mix (189 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MagdalenaValue
BH slice through the middle51%−6.2+0.3−0.4−6.3±2.4
BH slice crosscourt18%−4.2+2.2+0.2−1.8±2.8
BH through the middle14%+6.0−3.0+0.6+3.6±2.7
BH slice down the line8%−12.5+1.0±0.0−11.5±2.3
BH crosscourt6%+7.7−3.1+1.5+6.2±3.3

Lean BH crosscourt: +9.7±3.4 per 100 returns v the current mix (242 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MagdalenaValue
FH down the line48%−0.6+0.5−0.4−0.5±5.2
FH through the middle39%−3.2−1.7−1.7−6.6±2.9
FH crosscourt13%+0.5+1.3+0.9+2.7±3.7

Lean FH down the line: +2.0±2.9 per 100 returns v the current mix (62 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MagdalenaValue
BH slice through the middle22%−11.7+0.1±0.0−11.6±1.6
FH inside-out19%+1.4+0.4−0.4+1.4±4.1
BH through the middle18%−2.6+0.8+0.9−1.0±2.6
BH slice crosscourt15%−7.5−1.7±0.0−9.2±1.8
FH through the middle15%−2.7+1.5−1.7−2.9±2.4

Lean FH inside-out: +5.7±3.4 per 100 returns v the current mix (110 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.

Magdalena Frech

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+4.8±4.0+3.4+1.4
BH to their forehand · return+4.6±4.3+4.6±0.0
FH to their forehand · serve +1+2.6±3.7+1.3+1.3
FH to the middle · return +1+2.0±2.7+1.3+0.8
FH slice to the middle · return+1.8±2.5+1.1+0.7
FH to the middle · rally+1.5±2.1+2.5−1.0

Avoid

ShotEdgeOwnTheirs
BH to their backhand · serve +1−5.0±3.4+0.8−5.8
FH to their backhand · rally−2.6±2.9−0.3−2.3
BH to their forehand · serve +1−2.2±4.6+0.4−2.5
BH slice to their backhand · rally−1.6±2.8+0.6−2.2
FH to their backhand · serve +1−1.2±3.7+0.2−1.4

Diane Parry

Favour

ShotEdgeOwnTheirs
FH to their backhand · return +1+5.6±4.1+2.3+3.3
FH to their backhand · serve +1+3.4±3.4+1.2+2.2
FH to their backhand · rally+2.7±2.6−0.9+3.6
FH to their forehand · rally+2.5±2.4+0.4+2.0
FH to the middle · return +1+2.4±2.7+0.2+2.2
BH to the middle · rally+1.0±2.2±0.0+1.0

Avoid

ShotEdgeOwnTheirs
FH to their forehand · serve +1−4.0±3.5−2.6−1.3
BH slice to their backhand · rally−2.4±2.7−0.8−1.6
FH to the middle · return−1.5±2.4−2.0+0.5
BH to their backhand · rally−1.1±2.9−2.2+1.1
FH to their forehand · return +1−0.7±3.8−1.9+1.2

Against Diane Parry-like opponents

Magdalena Frech vMatchesServe pts wonReturn pts won
All charted opponents–55.6%42.3%

Similar by tactical fingerprint: Karolina Muchova, Caty Mcnally, Tamara Zidansek, Anna Bondar, Daria Saville, Samantha Stosur, Ashleigh Barty, Polona Hercog, Francesca Schiavone, Roberta Vinci. When two players have rarely met, their records against these lookalikes fill the gap.