RallyIQ

Game plan

Casper Ruud v Hugo Dellien

Every number combines what Casper Ruud does well with what Hugo Dellien allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Casper Ruud wins, best of 3 95%90%: 87%–99% · best of 5: 98%
Serve points won 68.4% / 55.1% Casper / Hugo · tour 61.3%
Strengths only, no similarity priors 94%serve 67.8% / 55.5%

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. At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Casper Ruud's record against Hugo Dellien's tactical lookalikes and in their charted head-to-heads (lookalikes: +2.5 on serve, ±0.0 on return vs expectation (702 points); head-to-head: +4.3 on serve, +16.9 on return vs expectation (80 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

CareerCasperHugo
Direction choice−0.03 ±0.05
better than 49%
−0.10 ±0.19
better than 31%
Shot selection−0.02 ±0.09
better than 51%
+0.10 ±0.41
better than 66%
Execution+0.87 ±0.19
better than 93%
−0.14 ±0.74
better than 60%
Points left on the table2.68 ±0.08
lower than 40%
2.83 ±0.33
lower than 29%

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.

Casper Ruud serving

Deuce court

1st serveNowCasper winsv HugoMatchupOptimal
Wide48%75%71%73.2%±6.144% ▼
Body9%64%59%60.0%±12.90% ▼
T43%78%77%79.3%±5.556% ▲

Optimal v Hugo Dellien: +1.0±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +4.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCasper winsv HugoMatchupOptimal
Wide52%71%73%70.9%±6.946% ▼
Body7%60%65%62.0%±14.00% ▼
T41%72%77%76.7%±6.654% ▲

Optimal v Hugo Dellien: +0.8±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +4.0 per 100 first serves in before the returner adjusts.

Hugo Dellien serving

Deuce court

1st serveNowHugo winsv CasperMatchupOptimal
Wide47%58%73%58.3%±6.734% ▼
Body12%62%63%61.3%±10.312%
T41%62%74%60.5%±7.054% ▲

Optimal v Casper Ruud: +0.1±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving body every time would read +1.8 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowHugo winsv CasperMatchupOptimal
Wide60%66%71%64.1%±5.957% ▼
Body10%60%62%59.0%±11.30% ▼
T30%64%73%65.1%±7.643% ▲

Optimal v Casper Ruud: +0.6±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.2 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.

Casper Ruud returning

1st serve to the forehand

ReturnNowTourOwnv HugoValue
FH through the middle37%+4.3+0.7+3.6+8.6±2.3
FH slice through the middle27%−4.2−0.7−1.1−6.0±1.4
FH down the line13%+1.7+1.2−3.3−0.5±3.9
FH crosscourt11%+5.5−1.3+2.0+6.2±3.9
FH slice down the line8%−4.3+1.5±0.0−2.8±1.9

Lean FH through the middle: +6.8±1.6 per 100 returns v the current mix (2447 returns charted)

1st serve to the backhand

ReturnNowTourOwnv HugoValue
BH through the middle44%+6.4+1.2+0.5+8.2±1.9
BH crosscourt31%+8.8+2.4+2.7+13.9±2.6
BH slice through the middle10%−4.2−1.7±0.0−5.9±1.8
BH down the line8%+4.2+3.2+2.1+9.5±3.9
BH slice crosscourt5%+0.5−0.7−0.4−0.5±2.2

Lean BH crosscourt: +6.1±2.0 per 100 returns v the current mix (3085 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv HugoValue
FH through the middle48%−3.5+1.8+3.7+2.0±2.4
FH crosscourt30%−0.2+1.1−0.6+0.3±3.6
FH down the line16%−1.8+0.8−1.0−1.9±4.3
FH slice through the middle5%−12.7+0.2±0.0−12.5±1.7
BH through the middle1%+0.1+0.3−1.0−0.6±1.7

Lean FH through the middle: +1.9±1.8 per 100 returns v the current mix (709 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv HugoValue
BH crosscourt31%+1.0+0.4+0.6+2.0±2.6
BH through the middle25%−2.9−1.2−1.0−5.0±2.1
FH through the middle17%−2.9−0.2+3.7+0.6±2.0
FH inside-in10%+0.6+2.1−0.6+2.0±3.6
FH inside-out9%+1.0−1.6−1.0−1.6±3.1
BH down the line6%−0.2−0.7+5.4+4.5±4.4

Lean BH down the line: +4.9±4.3 per 100 returns v the current mix (2232 returns charted)

Hugo Dellien returning

1st serve to the forehand

ReturnNowTourOwnv CasperValue
FH through the middle46%+4.3+0.5+0.8+5.5±2.3
FH down the line20%+1.7−0.5−3.0−1.8±3.5
FH slice through the middle19%−4.2−0.8−1.0−5.9±2.0
FH crosscourt12%+5.5+0.5+2.7+8.7±3.2
FH slice down the line4%−4.3+0.1+0.3−3.9±2.5

Lean FH crosscourt: +6.8±3.1 per 100 returns v the current mix (140 returns charted)

1st serve to the backhand

ReturnNowTourOwnv CasperValue
BH through the middle41%+6.4+0.6+0.7+7.6±2.1
BH crosscourt22%+8.8−0.7−0.3+7.8±2.8
BH slice through the middle14%−4.2−1.0−1.0−6.2±2.0
BH down the line10%+4.2±0.0−0.4+3.8±3.6
BH slice crosscourt8%+0.5−1.0−1.1−1.6±2.4

Lean BH crosscourt: +4.1±2.4 per 100 returns v the current mix (170 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv CasperValue
FH through the middle65%−3.5−1.7+0.4−4.8±2.3
FH crosscourt19%−0.2−0.8−4.0−5.0±3.2
FH down the line16%−1.8−0.8−1.8−4.4±3.3

Lean FH through the middle: ±0.0±1.1 per 100 returns v the current mix (43 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv CasperValue
BH crosscourt28%+1.0−0.6−1.0−0.5±2.5
BH through the middle27%−2.9−1.2±0.0−4.1±2.0
FH through the middle22%−2.9−1.0+0.4−3.5±2.0
FH inside-out14%+1.0−1.9−1.8−2.8±3.2
FH inside-in7%+0.6±0.0−4.0−3.4±3.4

Lean BH crosscourt: +2.0±2.0 per 100 returns v the current mix (169 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 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.

Casper Ruud

Favour

ShotEdgeOwnTheirs
FH to the middle · return+6.6±2.6+0.5+6.1
BH to their backhand · return+6.5±2.7+2.2+4.2
FH to their forehand · serve +1+4.8±4.2+3.7+1.1
FH to their forehand · return+4.2±4.8+1.1+3.1
FH to their backhand · serve +1+3.7±3.2+1.7+2.0
BH to the middle · return+3.3±2.1+2.3+1.0

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−5.3±4.3−1.5−3.8
BH to their forehand · rally−3.1±4.8+2.0−5.1
FH to the middle · rally−2.7±2.4±0.0−2.7
BH to the middle · return +1+0.6±2.9+0.7−0.1
FH to their forehand · return +1+0.8±4.7+2.0−1.2

Hugo Dellien

Favour

ShotEdgeOwnTheirs
FH to their forehand · return +1+4.3±4.9+2.1+2.2
FH to their forehand · rally+3.0±2.8+2.8+0.2
BH to the middle · return+1.9±2.4+1.9±0.0
FH to their forehand · serve +1+1.7±4.1+0.5+1.2
BH to their forehand · rally+0.9±4.7−0.7+1.7
FH to their backhand · rally+0.9±2.3+1.4−0.5

Avoid

ShotEdgeOwnTheirs
FH to their backhand · return−3.3±4.3−0.8−2.5
FH to their backhand · serve +1−2.9±2.9−2.6−0.3
FH to their backhand · return +1−2.7±4.5−1.1−1.6
BH to their backhand · return−2.4±3.2−0.4−2.0
BH to the middle · serve +1−2.1±3.1−0.9−1.3

Against Hugo Dellien-like opponents

Casper Ruud vMatchesServe pts wonReturn pts won
All charted opponents–66.3%36.7%
Players most similar to Hugo Dellien6 69.1%38.8%
Hugo Dellien (charted head-to-head)1 72.5%57.5%

Similar by tactical fingerprint: Roberto Bautista Agut, Thiago Seyboth Wild, Francisco Cerundolo, Dusan Lajovic, Radu Albot, Bernabe Zapata Miralles, Joao Sousa, Tommy Robredo, Albert Costa. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head