RallyIQ

Game plan

Holger Rune v Otto Virtanen

Every number combines what Holger Rune does well with what Otto Virtanen allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Holger Rune wins, best of 3 68%90%: 40%–89% · best of 5: 72%
Serve points won 67.7% / 63.8% Holger / Otto · tour 63.5%
Strengths only, no similarity priors 66%serve 66.8% / 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. Both were charted enough in the last three seasons, so those carry the most weight. The result is then nudged by Holger Rune's record against Otto Virtanen's tactical lookalikes and in their charted head-to-heads (lookalikes: +5.1 on serve, −2.3 on return vs expectation (673 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

CareerHolgerOtto
Direction choice−0.08 ±0.07
better than 35%
−0.01 ±0.08
better than 53%
Shot selection+0.20 ±0.12
better than 72%
+0.30 ±0.21
better than 80%
Execution−0.49 ±0.34
better than 45%
−1.35 ±0.59
better than 14%
Points left on the table2.80 ±0.11
lower than 30%
2.48 ±0.15
lower than 65%

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: Holger Rune +0.53, Otto Virtanen −0.11. 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.

Holger Rune serving

Deuce court

1st serveNowHolger winsv OttoMatchupOptimal
Wide53%71%73%71.1%±6.266% ▲
Body10%66%68%71.0%±9.911%
T36%70%71%66.7%±6.623% ▼

Optimal v Otto Virtanen: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowHolger winsv OttoMatchupOptimal
Wide49%71%74%72.1%±6.162% ▲
Body7%60%69%66.1%±12.60% ▼
T45%71%73%72.3%±6.638% ▼

Optimal v Otto Virtanen: +0.4±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +0.5 per 100 first serves in before the returner adjusts.

Otto Virtanen serving

Deuce court

1st serveNowOtto winsv HolgerMatchupOptimal
Wide48%72%73%71.8%±5.842% ▼
Body7%58%68%63.0%±11.60% ▼
T45%79%77%81.0%±5.358% ▲

Optimal v Holger Rune: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +5.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowOtto winsv HolgerMatchupOptimal
Wide45%78%71%76.6%±6.258% ▲
Body9%62%67%65.7%±11.40% ▼
T47%70%73%71.1%±6.042% ▼

Optimal v Holger Rune: +0.4±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.5 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.

Holger Rune returning

1st serve to the forehand

ReturnNowTourOwnv OttoValue
FH through the middle44%+4.3−1.0+0.6+3.8±2.3
FH down the line19%+1.7+0.8+2.1+4.5±4.1
FH slice through the middle17%−4.2+0.2−0.4−4.4±2.1
FH crosscourt13%+5.5−1.3±0.0+4.2±4.1
FH slice down the line4%−4.3+0.9−0.8−4.2±2.8

Lean FH down the line: +2.7±3.5 per 100 returns v the current mix (1175 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv OttoValue
BH through the middle41%+6.4−0.1+0.2+6.5±2.3
BH crosscourt30%+8.8+0.5+0.1+9.3±3.1
BH slice through the middle12%−4.2−1.8±0.0−6.0±2.2
BH down the line9%+4.2−2.4−1.8−0.1±4.5
BH slice crosscourt4%+0.5−1.0+1.7+1.2±2.6

Lean BH crosscourt: +4.8±2.4 per 100 returns v the current mix (1090 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv OttoValue
FH through the middle48%−3.5+1.4+1.4−0.8±2.6
FH down the line32%−1.8−0.5−0.6−3.0±4.6
FH crosscourt16%−0.2−4.8−1.9−7.0±4.3
FH slice down the line2%−9.4+0.4±0.0−9.0±1.4
FH slice through the middle2%−12.7−0.7±0.0−13.4±1.1

Lean FH through the middle: +2.1±2.1 per 100 returns v the current mix (321 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv OttoValue
BH through the middle44%−2.9−1.2+0.2−3.9±2.1
BH crosscourt40%+1.0−0.9−2.5−2.4±2.8
BH down the line8%−0.2−2.9−4.3−7.4±4.8
FH through the middle3%−2.9−1.9+1.4−3.4±2.3
FH inside-out2%+1.0−4.4−0.6−4.1±3.4

Lean BH crosscourt: +1.3±2.0 per 100 returns v the current mix (680 returns charted, inside the 90% margin)

Otto Virtanen returning

1st serve to the forehand

ReturnNowTourOwnv HolgerValue
FH through the middle45%+4.3+1.3+1.7+7.3±2.4
FH down the line25%+1.7+3.1+0.4+5.2±4.0
FH crosscourt15%+5.5−2.0+1.2+4.7±3.7
FH slice through the middle11%−4.2−0.2−0.5−4.9±2.1
FH slice down the line4%−4.3−0.2−1.4−5.9±2.7

Lean FH through the middle: +2.7±1.8 per 100 returns v the current mix (199 returns charted)

1st serve to the backhand

ReturnNowTourOwnv HolgerValue
BH through the middle44%+6.4+2.3−0.2+8.4±2.2
BH crosscourt27%+8.8+1.8+1.3+11.9±3.0
BH down the line12%+4.2+2.9−0.4+6.7±4.3
BH slice through the middle9%−4.2−1.4+0.2−5.4±2.3
BH slice crosscourt9%+0.5+0.3−0.4+0.4±2.9

Lean BH crosscourt: +4.7±2.5 per 100 returns v the current mix (255 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv HolgerValue
FH through the middle38%−3.5−2.8+0.8−5.4±2.3
FH crosscourt35%−0.2+1.3−1.7−0.6±3.7
FH down the line27%−1.8+2.1−0.5−0.2±3.9

Lean FH crosscourt: +1.7±2.8 per 100 returns v the current mix (52 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv HolgerValue
BH through the middle41%−2.9+0.8−1.2−3.3±2.1
BH crosscourt32%+1.0−2.6−0.7−2.4±2.7
BH down the line20%−0.2−0.9±0.0−1.1±4.7
FH through the middle7%−2.9−0.6+0.8−2.7±1.7

Lean BH down the line: +1.4±3.9 per 100 returns v the current mix (161 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.

Holger Rune

Favour

ShotEdgeOwnTheirs
FH to their forehand · return +1+6.1±3.7+2.0+4.1
FH to their forehand · rally+5.7±2.3+2.4+3.3
BH to their backhand · serve +1+4.4±2.7+1.8+2.7
FH to the middle · rally+2.8±1.9+2.1+0.7
BH to their backhand · return +1+2.4±2.9−0.1+2.5
BH to their backhand · rally+2.1±1.9+1.0+1.1

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return−4.3±4.0−3.3−1.0
BH to their forehand · rally−3.9±3.7−1.8−2.0
BH to their backhand · return−3.3±2.6−0.8−2.6
FH to the middle · serve +1−1.8±2.3−1.4−0.5
BH to the middle · return−1.8±1.8−1.0−0.8

Otto Virtanen

Favour

ShotEdgeOwnTheirs
FH to their backhand · return+3.5±3.4+3.6−0.1
FH to their backhand · serve +1+3.0±2.8−0.2+3.2
BH to the middle · rally+2.6±1.6+1.9+0.7
FH to the middle · rally+2.0±1.9+1.4+0.6
BH to their backhand · return +1+1.9±2.8+2.3−0.3
BH to their backhand · serve +1+1.8±2.8+2.1−0.3

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−5.2±3.4−4.9−0.3
FH to their backhand · return +1−2.3±3.5−2.5+0.2
FH to their backhand · rally−2.1±2.4−2.1±0.0
FH to their forehand · serve +1−2.1±3.0−1.8−0.3
FH to the middle · serve +1−1.4±2.4−1.0−0.4

Against Otto Virtanen-like opponents

Holger Rune vMatchesServe pts wonReturn pts won
All charted opponents–62.8%35.1%
Players most similar to Otto Virtanen5 70.4%38.0%

Similar by tactical fingerprint: Frances Tiafoe, Zhizhen Zhang, Alexander Shevchenko, Zizou Bergs, Alexandre Muller, Roman Safiullin, Fabio Fognini, Matteo Arnaldi, Lucas Pouille, Gregoire Barrere. When two players have rarely met, their records against these lookalikes fill the gap.