RallyIQ

Game plan

John Millman v Christopher Oconnell

Every number combines what John Millman does well with what Christopher Oconnell allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

John Millman wins, best of 3 62%90%: 23%–91% · best of 5: 65%
Serve points won 60.2% / 57.7% John / Christopher · tour 61.3%
Strengths only, no similarity priors 53%serve 59.5% / 58.8%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 John Millman's record against Christopher Oconnell's tactical lookalikes and in their charted head-to-heads (lookalikes: +2.7 on serve, +4.1 on return vs expectation (1046 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

CareerJohnChristopher
Direction choice+0.16 ±0.09
better than 89%
+0.35 ±0.06
better than 99%
Shot selection+0.03 ±0.11
better than 54%
−0.54 ±0.24
better than 10%
Execution+0.34 ±0.65
better than 80%
−0.86 ±0.46
better than 30%
Points left on the table1.98 ±0.14
lower than 99%
2.34 ±0.14
lower than 80%

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: John Millman +0.34, Christopher Oconnell −0.02. 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.

John Millman serving

Deuce court

1st serveNowJohn winsv ChristopherMatchupOptimal
Wide49%68%78%73.2%±6.545% ▼
Body10%61%62%59.4%±11.90% ▼
T42%75%80%80.5%±5.755% ▲

Optimal v Christopher Oconnell: +0.9±0.8 per 100 first serves (faults included) over the current mix. Serving T every time would read +5.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJohn winsv ChristopherMatchupOptimal
Wide48%72%72%71.1%±6.643% ▼
Body8%70%59%66.2%±12.30% ▼
T44%64%74%66.7%±7.857% ▲

Optimal v Christopher Oconnell: +0.2±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.4 per 100 first serves in before the returner adjusts.

Christopher Oconnell serving

Deuce court

1st serveNowChristopher winsv JohnMatchupOptimal
Wide39%67%76%70.5%±6.652% ▲
Body4%63%64%63.1%±14.00% ▼
T57%73%72%70.1%±6.548% ▼

Optimal v John Millman: +0.2±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +0.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowChristopher winsv JohnMatchupOptimal
Wide49%74%73%74.2%±6.562% ▲
Body4%52%61%50.1%±14.60% ▼
T48%69%76%73.3%±6.738% ▼

Optimal v John Millman: +0.3±0.8 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide 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.

John Millman returning

1st serve to the forehand

ReturnNowTourOwnv ChristopherValue
FH through the middle48%+4.3+2.2−0.6+5.8±2.6
FH crosscourt23%+5.5−2.3+3.1+6.3±4.3
FH down the line18%+1.7−2.8−1.7−2.8±4.5
FH slice through the middle7%−4.2−0.6−1.0−5.8±2.2
FH slice down the line2%−4.3−0.3−0.1−4.7±2.0

Lean FH crosscourt: +3.2±3.7 per 100 returns v the current mix (325 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv ChristopherValue
BH through the middle44%+6.4+1.9+0.9+9.3±2.5
BH crosscourt33%+8.8−1.0−0.2+7.6±3.3
BH slice through the middle9%−4.2−2.8−1.2−8.3±2.5
BH down the line8%+4.2+1.3−1.8+3.7±4.5
BH slice down the line4%−8.4−1.8−2.6−12.8±3.0

Lean BH through the middle: +3.7±1.8 per 100 returns v the current mix (369 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ChristopherValue
FH through the middle55%−3.5+0.4+2.3−0.8±2.9
FH crosscourt29%−0.2+0.1+3.4+3.2±4.3
FH down the line17%−1.8−1.2+0.3−2.7±4.3

Lean FH crosscourt: +3.2±3.5 per 100 returns v the current mix (84 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv ChristopherValue
BH through the middle49%−2.9+0.3+2.1−0.5±2.3
BH crosscourt44%+1.0+1.3+0.1+2.4±2.8
BH down the line5%−0.2−0.8±0.0−1.1±4.6
FH inside-in2%+0.6−0.2+3.4+3.7±3.6

Lean BH crosscourt: +1.6±1.9 per 100 returns v the current mix (284 returns charted, inside the 90% margin)

Christopher Oconnell returning

1st serve to the forehand

ReturnNowTourOwnv JohnValue
FH through the middle37%+4.3+1.0+2.1+7.4±2.7
FH down the line28%+1.7−3.0+0.1−1.2±4.5
FH crosscourt25%+5.5−0.4−0.4+4.6±4.3
FH slice through the middle7%−4.2−2.4+1.3−5.4±2.2
FH slice crosscourt3%−4.3−1.2−0.6−6.2±1.7

Lean FH through the middle: +4.4±2.4 per 100 returns v the current mix (239 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JohnValue
BH slice through the middle42%−4.2−0.4+1.4−3.2±2.3
BH slice crosscourt35%+0.5+0.6−0.2+1.0±2.9
BH through the middle10%+6.4−0.4−0.3+5.7±2.6
BH crosscourt5%+8.8−1.9−1.7+5.2±3.3
BH slice down the line5%−8.4−1.7+0.9−9.3±3.2

Lean BH through the middle: +6.2±2.8 per 100 returns v the current mix (317 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JohnValue
FH through the middle40%−3.5−0.1−1.2−4.8±2.8
FH crosscourt39%−0.2+1.3−2.7−1.6±4.3
FH down the line20%−1.8−0.2−2.4−4.4±4.4

Lean FH crosscourt: +1.8±3.0 per 100 returns v the current mix (84 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv JohnValue
BH slice crosscourt49%−4.0−1.7−2.3−8.0±2.5
BH slice through the middle21%−11.3−2.2+1.8−11.7±2.4
BH through the middle7%−2.9−1.5+1.2−3.2±2.2
BH crosscourt5%+1.0−0.6+1.6+2.1±2.8
FH inside-out5%+1.0+0.8−2.4−0.6±3.2

Lean BH slice crosscourt: −1.0±1.4 per 100 returns v the current mix (189 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.

John Millman

Favour

ShotEdgeOwnTheirs
BH to their forehand · rally+5.1±5.4+1.1+4.0
FH to the middle · rally+3.2±3.0+1.2+2.0
FH to their forehand · rally+2.4±4.1+2.5−0.2
FH to the middle · return+2.3±3.4+1.2+1.0
BH to the middle · return +1+1.7±3.0−0.3+1.9
FH to the middle · return +1+1.5±3.2−1.0+2.5

Avoid

ShotEdgeOwnTheirs
FH to their forehand · serve +1−8.3±5.3−2.3−6.0
FH to their backhand · return−5.6±4.9−3.6−2.0
FH to their backhand · return +1−4.7±4.6−3.7−1.0
FH to their backhand · serve +1−4.3±4.7−1.3−3.0
BH to their backhand · serve +1−4.2±4.1−0.8−3.5

Christopher Oconnell

Favour

ShotEdgeOwnTheirs
BH to their backhand · rally+5.4±3.3+3.7+1.6
BH slice to the middle · rally+5.2±2.8+2.0+3.3
BH to their backhand · serve +1+4.9±4.3+1.2+3.7
FH to the middle · return +1+4.8±3.6+3.1+1.7
FH to the middle · rally+3.2±3.0+0.3+2.9
BH to their backhand · return +1+2.5±4.3+2.3+0.2

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−8.2±4.6−2.7−5.5
FH to their backhand · return−5.2±5.0−3.2−2.0
FH to their forehand · return +1−3.9±5.5−2.0−1.9
FH to their forehand · return−3.8±5.6−1.9−1.9
FH to their backhand · return +1−2.9±4.6−3.3+0.4

Against Christopher Oconnell-like opponents

John Millman vMatchesServe pts wonReturn pts won
All charted opponents–63.4%36.7%
Players most similar to Christopher Oconnell4 65.0%36.8%

Similar by tactical fingerprint: Ethan Quinn, Aleksandar Kovacevic, Grigor Dimitrov, Stan Wawrinka, Dominic Thiem, Feliciano Lopez, Tim Van Rijthoven, Jo Wilfried Tsonga, Roger Federer, Tommy Haas. When two players have rarely met, their records against these lookalikes fill the gap.