RallyIQ

Game plan

Guy Den Ouden v Francisco Cerundolo

Every number combines what Guy Den Ouden does well with what Francisco Cerundolo allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Guy Den Ouden wins, best of 3 13%90%: 3%–37% · best of 5: 8%
Serve points won 55.9% / 64.7% Guy / Francisco · tour 61.3%
Strengths only, no similarity priors 13%serve 55.9% / 64.7%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Guy Den Ouden's record against Francisco Cerundolo'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

CareerGuyFrancisco
Direction choice−0.15 ±0.07
better than 20%
+0.11 ±0.06
better than 82%
Shot selection+0.13 ±0.31
better than 68%
+0.26 ±0.12
better than 76%
Execution−1.89 ±0.66
better than 4%
−0.40 ±0.49
better than 48%

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.

Guy Den Ouden serving

Deuce court

1st serveNowGuy winsv FranciscoMatchupOptimal
Wide40%75%72%74.4%±7.753% ▲
Body22%59%62%57.9%±11.69% ▼
T38%71%70%66.4%±9.538%

Optimal v Francisco Cerundolo: +0.9±0.9 per 100 first serves (faults included) over the current mix. Serving wide every time would read +6.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowGuy winsv FranciscoMatchupOptimal
Wide47%72%68%67.8%±8.447%
Body21%62%61%60.6%±12.08% ▼
T32%70%67%65.3%±9.745% ▲

Optimal v Francisco Cerundolo: +0.6±1.0 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.3 per 100 first serves in before the returner adjusts.

Francisco Cerundolo serving

Deuce court

1st serveNowFrancisco winsv GuyMatchupOptimal
Wide44%65%79%72.0%±8.557% ▲
Body16%61%67%64.6%±11.716%
T40%69%73%66.9%±9.127% ▼

Optimal v Guy Den Ouden: +0.6±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.3 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowFrancisco winsv GuyMatchupOptimal
Wide52%63%69%58.5%±8.639% ▼
Body16%66%59%62.7%±12.716%
T32%67%70%64.7%±10.045% ▲

Optimal v Guy Den Ouden: +0.6±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.6 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.

Guy Den Ouden returning

1st serve to the forehand

ReturnNowTourOwnv FranciscoValue
FH through the middle47%+4.3−1.7+1.8+4.3±2.6
FH crosscourt23%+5.5+1.0+3.0+9.6±4.0
FH down the line14%+1.7−2.3+4.2+3.6±3.7
FH slice through the middle11%−4.2−1.3+0.8−4.7±2.1
FH slice down the line6%−4.3−2.1+1.1−5.3±2.5

Lean FH crosscourt: +5.7±3.4 per 100 returns v the current mix (101 returns charted)

1st serve to the backhand

ReturnNowTourOwnv FranciscoValue
BH through the middle36%+6.4−0.2+0.7+6.9±2.4
BH crosscourt35%+8.8−1.4+1.5+8.9±3.0
BH down the line15%+4.2−3.5+1.7+2.5±4.3
BH slice through the middle8%−4.2+0.1−0.3−4.4±2.2
BH slice crosscourt5%+0.5−1.8−0.8−2.1±2.5

Lean BH crosscourt: +3.3±2.2 per 100 returns v the current mix (110 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv FranciscoValue
BH crosscourt26%+1.0−0.8+0.2+0.4±2.6
BH through the middle25%−2.9+1.7+0.2−1.0±2.1
FH inside-out25%+1.0+0.8−1.0+0.7±3.3
BH down the line12%−0.2+0.8−2.4−1.8±4.3
FH through the middle12%−2.9−0.4+1.3−1.9±1.9

Lean FH inside-out: +1.1±2.7 per 100 returns v the current mix (65 returns charted, inside the 90% margin)

Francisco Cerundolo returning

1st serve to the forehand

ReturnNowTourOwnv GuyValue
FH through the middle43%+4.3+0.8−0.1+5.0±2.7
FH crosscourt25%+5.5+0.1−3.2+2.4±4.0
FH down the line15%+1.7−0.4−0.4+0.8±4.3
FH slice through the middle10%−4.2−1.1−0.4−5.7±2.1
FH slice down the line4%−4.3−1.2−0.3−5.7±2.6

Lean FH through the middle: +3.1±1.9 per 100 returns v the current mix (715 returns charted)

1st serve to the backhand

ReturnNowTourOwnv GuyValue
BH through the middle44%+6.4−0.8−0.8+4.8±2.4
BH crosscourt29%+8.8−1.2−0.1+7.5±3.2
BH down the line12%+4.2+3.1−0.7+6.6±4.2
BH slice through the middle7%−4.2−2.6−0.8−7.6±2.3
BH slice crosscourt5%+0.5−1.6−1.1−2.1±2.5

Lean BH crosscourt: +3.3±2.6 per 100 returns v the current mix (857 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv GuyValue
FH through the middle47%−3.5+1.8−0.9−2.6±2.9
FH crosscourt35%−0.2+2.4−1.1+1.1±4.2
FH down the line18%−1.8−0.7−0.9−3.4±4.5

Lean FH crosscourt: +2.6±3.2 per 100 returns v the current mix (152 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv GuyValue
BH crosscourt38%+1.0−1.2−0.5−0.6±2.9
BH through the middle37%−2.9−1.0−0.3−4.2±2.3
BH down the line7%−0.2−3.7+1.2−2.7±4.2
FH through the middle7%−2.9+1.0−0.9−2.8±2.4
FH inside-out6%+1.0−1.1−0.9−1.1±3.6

Lean BH crosscourt: +1.7±2.1 per 100 returns v the current mix (564 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 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.

Guy Den Ouden

Favour

ShotEdgeOwnTheirs
BH to the middle · return+3.7±3.0+2.2+1.5
BH to their backhand · serve +1+2.6±4.1+1.4+1.2
FH to their backhand · serve +1+2.2±4.1+2.2−0.1
FH to the middle · return+1.2±3.1−1.3+2.5
BH to their backhand · return−0.2±3.7−1.6+1.4
FH to the middle · rally−0.4±2.9−0.8+0.5

Avoid

ShotEdgeOwnTheirs
FH to their backhand · rally−4.3±3.6−2.8−1.5
BH to the middle · rally−2.3±2.7−1.2−1.1
FH to their forehand · rally−1.7±4.0−0.2−1.5
FH to their forehand · serve +1−0.8±4.7+0.1−0.9
BH to their backhand · rally−0.7±2.9−2.2+1.6

Francisco Cerundolo

Favour

ShotEdgeOwnTheirs
FH to their forehand · serve +1+3.6±5.0+3.7−0.1
FH to their backhand · serve +1+1.8±4.3+0.5+1.3
FH to the middle · return+1.6±3.0+1.8−0.2
BH to their backhand · return+0.7±3.6−1.1+1.8
FH to their backhand · rally+0.5±3.6−0.5+1.0
BH to the middle · return+0.4±2.9+0.2+0.1

Avoid

ShotEdgeOwnTheirs
BH to their backhand · rally−1.6±3.0−0.1−1.5
BH to the middle · rally−1.4±2.6−1.3−0.1
FH to the middle · rally−0.7±3.1−1.6+0.9
FH to their forehand · rally−0.5±3.9+1.0−1.4
BH to the middle · return+0.4±2.9+0.2+0.1

Against Francisco Cerundolo-like opponents

Guy Den Ouden vMatchesServe pts wonReturn pts won
All charted opponents–61.1%37.0%

Similar by tactical fingerprint: Casper Ruud, Carlos Alcaraz, Tommy Paul, Roberto Bautista Agut, Thiago Seyboth Wild, Luca Nardi, Kei Nishikori, Radu Albot, Pablo Andujar. When two players have rarely met, their records against these lookalikes fill the gap.