RallyIQ

Game plan

Casper Ruud v Marcos Giron

Every number combines what Casper Ruud does well with what Marcos Giron 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 69%90%: 40%–89% · best of 5: 73%
Serve points won 65.2% / 61.4% Casper / Marcos · tour 63.5%
Strengths only, no similarity priors 76%serve 66.6% / 60.9%

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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Casper Ruud's record against Marcos Giron's tactical lookalikes and in their charted head-to-heads (lookalikes: −4.7 on serve, −1.1 on return vs expectation (1064 points); head-to-head: −0.7 on serve, −1.4 on return vs expectation (511 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

CareerCasperMarcos
Direction choice−0.03 ±0.05
better than 49%
−0.12 ±0.14
better than 26%
Shot selection−0.02 ±0.09
better than 51%
−0.29 ±0.18
better than 24%
Execution+0.87 ±0.19
better than 93%
+0.02 ±0.52
better than 69%
Points left on the table2.68 ±0.08
lower than 40%
2.66 ±0.24
lower than 43%

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 +1.85, Marcos Giron −0.35. 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 MarcosMatchupOptimal
Wide48%75%77%79.4%±3.544% ▼
Body9%64%68%68.4%±8.30% ▼
T43%78%79%81.1%±3.456% ▲

Optimal v Marcos Giron: +1.1±0.6 per 100 first serves (faults included) over the current mix. Serving T every time would read +2.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowCasper winsv MarcosMatchupOptimal
Wide52%71%74%72.6%±4.146% ▼
Body7%60%63%60.1%±10.20% ▼
T41%72%71%70.8%±4.554% ▲

Optimal v Marcos Giron: +0.6±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.6 per 100 first serves in before the returner adjusts.

Marcos Giron serving

Deuce court

1st serveNowMarcos winsv CasperMatchupOptimal
Wide50%65%73%65.6%±4.063% ▲
Body4%62%63%61.8%±10.20% ▼
T46%78%74%76.7%±4.337% ▼

Optimal v Casper Ruud: +0.3±0.5 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +6.2 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowMarcos winsv CasperMatchupOptimal
Wide55%72%71%70.3%±4.548% ▼
Body6%65%62%64.0%±9.90% ▼
T39%71%73%72.0%±4.552% ▲

Optimal v Casper Ruud: +0.5±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +1.4 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.

Casper Ruud returning

1st serve to the forehand

ReturnNowTourOwnv MarcosValue
FH through the middle37%+4.3+0.7+4.1+9.1±1.9
FH slice through the middle27%−4.2−0.7−0.5−5.4±1.8
FH down the line13%+1.7+1.2+2.0+4.9±3.7
FH crosscourt11%+5.5−1.3+0.4+4.6±3.7
FH slice down the line8%−4.3+1.5±0.0−2.8±2.9

Lean FH through the middle: +6.4±1.5 per 100 returns v the current mix (2447 returns charted)

1st serve to the backhand

ReturnNowTourOwnv MarcosValue
BH through the middle44%+6.4+1.2+2.9+10.5±1.8
BH crosscourt31%+8.8+2.4+0.5+11.7±2.6
BH slice through the middle10%−4.2−1.7−1.1−7.1±2.1
BH down the line8%+4.2+3.2+1.5+8.9±4.1
BH slice crosscourt5%+0.5−0.7−1.5−1.6±2.8
FH through the middle1%+7.7+0.9+4.1+12.8±2.1

Lean FH through the middle: +4.9±2.4 per 100 returns v the current mix (3085 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv MarcosValue
FH through the middle48%−3.5+1.8+2.0+0.3±2.3
FH crosscourt30%−0.2+1.1+4.9+5.8±3.9
FH down the line16%−1.8+0.8+1.0+0.1±4.4
FH slice through the middle5%−12.7+0.2±0.0−12.5±1.7
BH through the middle1%+0.1+0.3+2.0+2.3±1.4

Lean FH crosscourt: +4.5±3.0 per 100 returns v the current mix (709 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv MarcosValue
BH crosscourt31%+1.0+0.4+0.6+2.0±2.2
BH through the middle25%−2.9−1.2+2.0−2.1±1.7
FH through the middle17%−2.9−0.2+2.0−1.1±1.9
FH inside-in10%+0.6+2.1+4.9+7.5±3.9
FH inside-out9%+1.0−1.6+1.0+0.4±3.2

Lean FH inside-in: +6.8±3.6 per 100 returns v the current mix (2232 returns charted)

Marcos Giron returning

1st serve to the forehand

ReturnNowTourOwnv CasperValue
FH through the middle52%+4.3+0.6+0.8+5.6±1.8
FH crosscourt20%+5.5+0.3+2.7+8.5±3.5
FH down the line14%+1.7−1.2−3.0−2.5±3.6
FH slice through the middle9%−4.2+1.0−1.0−4.2±2.1
FH slice crosscourt2%−4.3−0.5−0.3−5.1±2.5

Lean FH crosscourt: +4.8±3.0 per 100 returns v the current mix (463 returns charted)

1st serve to the backhand

ReturnNowTourOwnv CasperValue
BH through the middle34%+6.4+1.8+0.7+8.8±1.9
BH slice through the middle24%−4.2+1.5−1.0−3.7±2.0
BH crosscourt18%+8.8+1.1−0.3+9.6±2.7
BH slice crosscourt12%+0.5−1.7−1.1−2.3±2.7
BH slice down the line7%−8.4−1.9+0.1−10.1±3.5

Lean BH crosscourt: +6.6±2.4 per 100 returns v the current mix (501 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv CasperValue
FH through the middle59%−3.5+0.9+0.4−2.2±2.4
FH crosscourt28%−0.2−4.3−4.0−8.5±3.8
FH down the line13%−1.8+1.4−1.8−2.2±3.7

Lean FH through the middle: +1.8±1.5 per 100 returns v the current mix (97 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv CasperValue
BH through the middle42%−2.9+1.9±0.0−1.0±1.7
BH crosscourt36%+1.0−0.4−1.0−0.3±2.3
BH down the line8%−0.2+2.3+3.4+5.5±4.2
BH slice crosscourt3%−4.0−0.5−0.7−5.2±2.3
BH slice through the middle3%−11.3−1.0−3.7−15.9±2.2

Lean BH down the line: +6.4±4.0 per 100 returns v the current mix (392 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.

Casper Ruud

Favour

ShotEdgeOwnTheirs
BH to their forehand · return +1+7.3±4.0+2.5+4.9
BH to their forehand · rally+5.6±2.6+3.0+2.6
BH to their forehand · return+4.9±3.5+2.6+2.3
BH to the middle · return+3.9±1.3+1.8+2.2
FH to their backhand · return +1+3.9±2.8+2.9+1.0
FH to their forehand · rally+3.8±1.7+2.3+1.5

Avoid

ShotEdgeOwnTheirs
BH slice to the middle · rally−2.6±1.7−0.6−2.0
FH to the middle · serve +1−2.6±1.9+1.2−3.7
BH slice to the middle · return−2.2±2.1−1.9−0.4
FH slice to the middle · rally−1.4±2.4+0.9−2.3
FH slice to the middle · return−0.5±1.8−0.4−0.1

Marcos Giron

Favour

ShotEdgeOwnTheirs
BH to their forehand · return+3.5±3.6+1.9+1.6
BH to the middle · serve +1+2.4±1.9+2.9−0.5
FH to the middle · return+2.4±1.5+1.0+1.4
BH to the middle · return+1.8±1.4+1.3+0.6
FH to their forehand · serve +1+1.6±2.3+0.4+1.2
BH to their forehand · serve +1+1.0±3.9−0.3+1.3

Avoid

ShotEdgeOwnTheirs
BH slice to the middle · rally−6.0±1.9−3.1−2.9
BH slice to their forehand · rally−6.0±3.2−2.1−3.9
BH slice to their backhand · rally−4.4±1.9−1.8−2.6
FH slice to the middle · rally−2.9±2.6−2.9−0.1
FH to their backhand · return−2.7±3.0−0.4−2.3

Against Marcos Giron-like opponents

Casper Ruud vMatchesServe pts wonReturn pts won
All charted opponents–66.3%36.7%
Players most similar to Marcos Giron8 60.4%31.6%
Marcos Giron (charted head-to-head)3 66.9%37.3%

Similar by tactical fingerprint: Jannik Sinner, Brandon Nakashima, Gael Monfils, Taylor Fritz, Rinky Hijikata, Arthur Cazaux, Dominic Thiem, Lloyd Harris, Andreas Seppi. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head