RallyIQ

Game plan

Casper Ruud v Gijs Brouwer

Every number combines what Casper Ruud does well with what Gijs Brouwer 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 67%90%: 49%–81% · best of 5: 70%
Serve points won 67.9% / 64.4% Casper / Gijs · tour 63.8%
Strengths only, no similarity priors 71%serve 67.9% / 63.4%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Gijs Brouwer's tactical lookalikes and in their charted head-to-heads (lookalikes: −0.1 on serve, −3.6 on return vs expectation (1077 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

CareerCasperGijs
Direction choice−0.03 ±0.05
better than 49%
+0.02 ±0.09
better than 62%
Shot selection−0.02 ±0.09
better than 51%
−0.08 ±0.26
better than 42%
Execution+0.87 ±0.19
better than 93%
−1.66 ±0.67
better than 7%
Points left on the table2.68 ±0.08
lower than 40%
3.10 ±0.19
lower than 16%

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: Casper Ruud +0.40, Gijs Brouwer −1.46. 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.

Casper Ruud serving

Deuce court

1st serveNowCasper winsv GijsMatchupOptimal
Wide48%75%75%77.1%±5.061% ▲
Body9%64%59%59.3%±9.20% ▼
T43%78%69%71.6%±5.939% ▼

Optimal v Gijs Brouwer: +0.9±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +4.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCasper winsv GijsMatchupOptimal
Wide52%71%78%76.7%±6.346% ▼
Body7%60%70%68.0%±9.30% ▼
T41%72%73%73.0%±5.654% ▲

Optimal v Gijs Brouwer: +0.6±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.1 per 100 first serves in before the returner adjusts.

Gijs Brouwer serving

Deuce court

1st serveNowGijs winsv CasperMatchupOptimal
Wide30%82%73%81.7%±5.744% ▲
Body12%57%63%56.8%±9.90% ▼
T58%69%74%67.7%±4.956% ▼

Optimal v Casper Ruud: +1.1±0.8 per 100 first serves (faults included) over the current mix. Serving wide every time would read +11.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowGijs winsv CasperMatchupOptimal
Wide60%67%71%65.0%±5.154% ▼
Body7%68%62%66.8%±10.40% ▼
T33%71%73%71.4%±6.746% ▲

Optimal v Casper Ruud: +0.4±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +4.2 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 GijsValue
FH through the middle37%+4.3+0.7±0.0+5.0±2.2
FH slice through the middle27%−4.2−0.7+0.2−4.7±1.9
FH down the line13%+1.7+1.2−1.3+1.5±3.7
FH crosscourt11%+5.5−1.3−1.1+3.1±3.9
FH slice down the line8%−4.3+1.5±0.0−2.8±1.9

Lean FH through the middle: +4.3±1.6 per 100 returns v the current mix (2447 returns charted)

1st serve to the backhand

ReturnNowTourOwnv GijsValue
BH through the middle44%+6.4+1.2+0.7+8.3±1.8
BH crosscourt31%+8.8+2.4−2.7+8.5±2.8
BH slice through the middle10%−4.2−1.7+0.3−5.6±2.1
BH down the line8%+4.2+3.2−3.1+4.4±4.0
BH slice crosscourt5%+0.5−0.7−0.1−0.3±2.4
FH through the middle1%+7.7+0.9±0.0+8.7±2.3

Lean FH through the middle: +2.9±2.6 per 100 returns v the current mix (3085 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv GijsValue
FH through the middle48%−3.5+1.8±0.0−1.7±2.5
FH crosscourt30%−0.2+1.1−2.7−1.8±3.7
FH down the line16%−1.8+0.8−1.6−2.5±4.1
FH slice through the middle5%−12.7+0.2±0.0−12.5±1.7
BH through the middle1%+0.1+0.3−0.7−0.4±1.6

Lean FH through the middle: +0.7±1.8 per 100 returns v the current mix (709 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv GijsValue
BH crosscourt31%+1.0+0.4+0.6+2.0±2.6
BH through the middle25%−2.9−1.2−0.7−4.8±2.0
FH through the middle17%−2.9−0.2±0.0−3.1±2.1
FH inside-in10%+0.6+2.1−2.7−0.1±3.7
FH inside-out9%+1.0−1.6−1.6−2.2±3.0

Lean BH crosscourt: +3.7±2.0 per 100 returns v the current mix (2232 returns charted)

Gijs Brouwer returning

1st serve to the forehand

ReturnNowTourOwnv CasperValue
FH through the middle51%+4.3−0.3+0.8+4.7±2.2
FH down the line27%+1.7−3.6+2.7+0.8±3.7
FH crosscourt22%+5.5+1.0−3.0+3.5±3.5

Lean FH through the middle: +1.3±1.7 per 100 returns v the current mix (179 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv CasperValue
BH slice through the middle30%−4.2−1.7−1.0−6.9±2.1
BH through the middle27%+6.4−2.8+0.7+4.3±2.1
BH down the line13%+4.2+0.2−0.3+4.1±3.5
BH slice down the line12%−8.4+0.6−1.1−8.9±3.1
BH crosscourt12%+8.8−3.2−0.4+5.2±3.0

Lean BH crosscourt: +6.3±2.8 per 100 returns v the current mix (267 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv CasperValue
FH through the middle51%−3.5−2.2+0.4−5.3±2.4
FH crosscourt35%−0.2−0.6−1.8−2.6±3.8
FH down the line14%−1.8−1.5−4.0−7.3±3.6

Lean FH crosscourt: +2.0±2.8 per 100 returns v the current mix (85 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv CasperValue
BH through the middle35%−2.9−0.6±0.0−3.5±2.0
BH crosscourt22%+1.0−2.0+3.4+2.4±2.7
BH down the line22%−0.2−0.1−1.0−1.3±3.7
FH through the middle8%−2.9−1.3+0.4−3.7±1.7
BH slice through the middle7%−11.3−0.1−3.7−15.1±2.1

Lean BH crosscourt: +4.7±2.4 per 100 returns v the current mix (144 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.

Casper Ruud

Favour

ShotEdgeOwnTheirs
FH to their backhand · return +1+5.9±4.1+3.9+2.0
BH to their backhand · return +1+5.4±4.0+2.1+3.3
FH to their backhand · serve +1+3.2±3.1+1.6+1.6
BH to the middle · return+2.6±2.0+1.4+1.2
FH to their backhand · rally+2.3±2.5+1.5+0.9
FH to their forehand · rally+2.1±2.9+2.0+0.1

Avoid

ShotEdgeOwnTheirs
BH to their backhand · rally−4.4±2.7+1.5−5.9
FH to their backhand · return−3.4±4.8+0.2−3.7
BH to their forehand · serve +1−1.9±6.0−2.5+0.6
BH to the middle · rally−1.6±2.2+1.8−3.4
BH to their forehand · return−1.5±5.1+2.5−4.1

Gijs Brouwer

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+1.5±4.1+0.5+1.0
FH to the middle · serve +1+1.4±3.0+0.7+0.7
FH to the middle · return+1.4±2.3−0.8+2.1
BH to their backhand · return+0.8±3.5−0.2+1.1
BH to the middle · rally+0.7±2.7+0.3+0.4
FH to their backhand · return +1−0.6±4.3+2.2−2.7

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return−5.3±5.1−6.4+1.2
FH to their backhand · return−3.9±4.3−1.6−2.4
BH to their backhand · rally−3.8±3.1−3.7−0.1
BH slice to their backhand · rally−3.7±2.7−0.7−3.1
FH to their forehand · return +1−3.7±4.7−3.8+0.2

Against Gijs Brouwer-like opponents

Casper Ruud vMatchesServe pts wonReturn pts won
All charted opponents–66.3%36.7%
Players most similar to Gijs Brouwer7 65.5%31.0%

Similar by tactical fingerprint: Joao Fonseca, Denis Shapovalov, Thiago Monteiro, Rafael Nadal, Jeremy Chardy, Tim Van Rijthoven, Fernando Verdasco, Juan Martin Del Potro, Pablo Cuevas, Philipp Kohlschreiber. When two players have rarely met, their records against these lookalikes fill the gap.