RallyIQ

Game plan

Mona Barthel v Caroline Dolehide

Every number combines what Mona Barthel does well with what Caroline Dolehide allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Mona Barthel wins, best of 3 37%90%: 13%–69% · best of 5: 34%
Serve points won 56.7% / 59.2% Mona / Caroline · tour 56.4%
Strengths only, no similarity priors 41%serve 57.0% / 58.8%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Mona Barthel's record against Caroline Dolehide's tactical lookalikes and in their charted head-to-heads (lookalikes: −8.6 on serve, −12.6 on return vs expectation (103 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

CareerMonaCaroline
Direction choice+0.20 ±0.18
better than 84%
−0.27 ±0.08
better than 10%
Shot selection+0.21 ±0.31
better than 68%
−0.67 ±0.37
better than 7%
Execution−0.27 ±1.34
better than 45%
−0.35 ±0.61
better than 40%

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.

Mona Barthel serving

Deuce court

1st serveNowMona winsv CarolineMatchupOptimal
Wide38%71%67%71.5%±9.253% ▲
Body17%53%61%57.3%±12.911% ▼
T45%67%63%62.9%±11.036% ▼

Optimal v Caroline Dolehide: +0.6±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +6.3 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMona winsv CarolineMatchupOptimal
Wide47%57%65%56.5%±10.832% ▼
Body12%51%60%55.1%±14.313%
T40%65%70%70.6%±9.955% ▲

Optimal v Caroline Dolehide: +0.8±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +8.6 per 100 first serves in before the returner adjusts.

Caroline Dolehide serving

Deuce court

1st serveNowCaroline winsv MonaMatchupOptimal
Wide52%68%62%64.2%±9.752%
Body22%66%55%63.8%±11.57% ▼
T26%65%73%70.7%±10.341% ▲

Optimal v Mona Barthel: +0.4±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCaroline winsv MonaMatchupOptimal
Wide49%65%66%65.4%±9.463% ▲
Body25%63%51%58.0%±13.010% ▼
T26%66%59%61.3%±11.627%

Optimal v Mona Barthel: +0.9±1.2 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.9 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.

Mona Barthel returning

1st serve to the forehand

ReturnNowTourOwnv CarolineValue
FH through the middle45%+4.2+0.6−5.1−0.3±3.1
FH down the line26%+1.5+3.3−3.0+1.8±4.7
FH crosscourt21%+5.3−1.9−4.9−1.4±4.2
FH slice through the middle8%−6.7−0.6−1.1−8.5±2.1

Lean FH down the line: +2.5±3.8 per 100 returns v the current mix (121 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv CarolineValue
BH through the middle42%+6.0+0.6−0.4+6.3±2.8
BH crosscourt33%+7.7−0.9−0.9+6.0±3.5
BH down the line13%+2.2−0.9−0.4+0.9±4.2
BH slice crosscourt7%−4.2+0.4±0.0−3.8±1.5
BH slice through the middle5%−6.2+0.1−0.9−7.0±1.8

Lean BH through the middle: +2.2±2.1 per 100 returns v the current mix (116 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv CarolineValue
BH crosscourt49%+1.5+0.5−2.2−0.2±3.6
BH through the middle38%−2.6−2.1−3.0−7.7±2.7
BH down the line12%−0.5+0.9−0.4±0.0±3.7

Lean BH crosscourt: +2.9±2.2 per 100 returns v the current mix (65 returns charted)

Caroline Dolehide returning

1st serve to the forehand

ReturnNowTourOwnv MonaValue
FH through the middle42%+4.2−2.8−1.0+0.3±3.1
FH crosscourt20%+5.3−1.2+2.9+7.0±4.3
FH slice through the middle16%−6.7+0.7+1.2−4.8±2.2
FH down the line15%+1.5−4.2−0.4−3.1±4.4
FH slice crosscourt4%−6.6+0.1−0.4−6.9±1.8

Lean FH crosscourt: +7.3±3.8 per 100 returns v the current mix (187 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MonaValue
BH through the middle40%+6.0+1.3+1.7+9.0±2.9
BH slice through the middle18%−6.2±0.0−0.3−6.5±2.1
BH crosscourt14%+7.7+0.2+0.3+8.2±3.5
BH slice crosscourt12%−4.2+0.3−1.1−5.0±2.4
BH down the line10%+2.2−1.6+0.9+1.4±4.3

Lean BH through the middle: +6.7±1.9 per 100 returns v the current mix (177 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MonaValue
FH through the middle43%−3.2+0.6−0.8−3.4±3.0
FH down the line34%−0.6−1.3+1.3−0.6±4.3
FH crosscourt23%+0.5±0.0+2.0+2.5±4.0

Lean FH down the line: +0.5±3.3 per 100 returns v the current mix (47 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv MonaValue
BH through the middle51%−2.6+0.5−0.5−2.6±2.8
BH crosscourt25%+1.5−1.1+1.6+2.0±3.4
FH through the middle10%−2.7+0.1−0.8−3.4±2.3
BH down the line8%−0.5−1.4−0.8−2.7±3.8
FH inside-out6%+1.4−1.5+1.3+1.2±3.0

Lean BH crosscourt: +3.3±3.0 per 100 returns v the current mix (88 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 hard. Each player's hard record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Mona Barthel

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+0.7±5.8+5.1−4.4
FH to their forehand · rally+0.5±4.5+2.7−2.3
FH to the middle · rally−0.7±3.6+1.8−2.5
BH to their backhand · serve +1−0.8±5.2+0.3−1.1
BH to the middle · rally−1.7±3.6−0.8−0.9
BH to the middle · return−1.8±3.5−0.5−1.3

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−10.8±6.0−7.0−3.8
FH to their backhand · rally−5.1±5.1−3.6−1.5
BH to their backhand · return−4.8±4.8−3.4−1.5
FH to the middle · return−3.5±3.9+2.7−6.3
BH to their backhand · rally−2.1±4.5+4.7−6.8

Caroline Dolehide

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+4.9±5.7+2.8+2.0
FH to their forehand · return+3.3±6.4+1.1+2.3
BH to their backhand · rally+2.6±5.1−2.6+5.2
BH to the middle · return+2.1±3.5+0.8+1.3
FH to their forehand · rally−2.9±4.2−1.1−1.8
FH to the middle · serve +1−2.9±3.9−2.3−0.7

Avoid

ShotEdgeOwnTheirs
BH to the middle · rally−4.4±3.7−2.7−1.7
FH to the middle · return−4.2±3.8−1.7−2.4
FH to their backhand · rally−3.6±5.7−4.9+1.2
FH to the middle · serve +1−2.9±3.9−2.3−0.7
FH to their forehand · rally−2.9±4.2−1.1−1.8

Against Caroline Dolehide-like opponents

Mona Barthel vMatchesServe pts wonReturn pts won
All charted opponents–54.8%41.5%
Players most similar to Caroline Dolehide1 46.4%29.8%

Similar by tactical fingerprint: Xin Yu Wang, Tamara Zidansek, Bianca Andreescu, Jasmine Paolini, Emma Raducanu, Peyton Stearns, Nao Hibino, Lucia Bronzetti, Daria Saville, Rebecca Peterson. When two players have rarely met, their records against these lookalikes fill the gap.