RallyIQ

Game plan

Christopher Oconnell v Tommy Haas

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

Forecast

Christopher Oconnell wins, best of 3 44%90%: 19%–71% · best of 5: 42%
Serve points won 63.1% / 64.4% Christopher / Tommy · tour 63.4%
Strengths only, no similarity priors 42%serve 62.6% / 64.1%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Christopher Oconnell's record against Tommy Haas's tactical lookalikes and in their charted head-to-heads (lookalikes: +8.5 on serve, −3.7 on return vs expectation (210 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

CareerChristopherTommy
Direction choice+0.35 ±0.06
better than 99%
+0.12 ±0.07
better than 84%
Shot selection−0.54 ±0.24
better than 10%
−0.59 ±0.12
better than 9%
Execution−0.86 ±0.46
better than 30%
−0.02 ±0.38
better than 67%
Points left on the table2.34 ±0.14
lower than 80%
2.57 ±0.14
lower than 52%

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.

Christopher Oconnell serving

Deuce court

1st serveNowChristopher winsv TommyMatchupOptimal
Wide39%67%72%66.4%±6.130% ▼
Body4%63%63%62.0%±13.00% ▼
T57%73%77%75.7%±5.170% ▲

Optimal v Tommy Haas: +0.4±0.6 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.

Ad court

1st serveNowChristopher winsv TommyMatchupOptimal
Wide49%74%79%80.4%±4.862% ▲
Body4%52%67%55.7%±14.10% ▼
T48%69%75%72.0%±6.038% ▼

Optimal v Tommy Haas: +0.6±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +5.0 per 100 first serves in before the returner adjusts.

Tommy Haas serving

Deuce court

1st serveNowTommy winsv ChristopherMatchupOptimal
Wide38%72%78%77.0%±5.651% ▲
Body4%62%62%59.8%±12.20% ▼
T57%69%80%75.8%±5.649% ▼

Optimal v Christopher Oconnell: +0.4±0.6 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.5 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowTommy winsv ChristopherMatchupOptimal
Wide53%73%72%72.3%±5.666% ▲
Body6%57%59%52.5%±12.70% ▼
T41%66%74%68.1%±7.134% ▼

Optimal v Christopher Oconnell: +0.5±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +2.9 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.

Christopher Oconnell returning

1st serve to the forehand

ReturnNowTourOwnv TommyValue
FH through the middle37%+4.3+1.0+0.2+5.5±2.6
FH down the line28%+1.7−3.0−1.0−2.3±4.0
FH crosscourt25%+5.5−0.4+2.5+7.6±4.2
FH slice through the middle7%−4.2−2.4+0.7−6.0±2.2
FH slice crosscourt3%−4.3−1.2−1.1−6.7±2.2

Lean FH crosscourt: +4.9±3.5 per 100 returns v the current mix (239 returns charted)

1st serve to the backhand

ReturnNowTourOwnv TommyValue
BH slice through the middle42%−4.2−0.4+2.3−2.3±2.1
BH slice crosscourt35%+0.5+0.6+2.5+3.7±2.6
BH through the middle10%+6.4−0.4+0.8+6.8±2.5
BH crosscourt5%+8.8−1.9+3.3+10.2±3.0
BH slice down the line5%−8.4−1.7+1.4−8.7±3.3

Lean BH crosscourt: +9.0±3.1 per 100 returns v the current mix (317 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv TommyValue
FH through the middle40%−3.5−0.1+1.4−2.1±2.6
FH crosscourt39%−0.2+1.3−0.8+0.3±4.4
FH down the line20%−1.8−0.2−3.0−5.1±4.2

Lean FH crosscourt: +2.1±3.0 per 100 returns v the current mix (84 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv TommyValue
BH slice crosscourt49%−4.0−1.7−1.6−7.3±2.5
BH slice through the middle21%−11.3−2.2−0.8−14.3±2.4
BH through the middle7%−2.9−1.5+1.0−3.4±2.0
BH crosscourt5%+1.0−0.6−1.2−0.7±2.4
FH inside-out5%+1.0+0.8−3.0−1.3±3.0

Lean BH slice crosscourt: −0.3±1.4 per 100 returns v the current mix (189 returns charted, inside the 90% margin)

Tommy Haas returning

1st serve to the forehand

ReturnNowTourOwnv ChristopherValue
FH through the middle42%+4.3+0.8−0.6+4.4±2.4
FH crosscourt22%+5.5−0.4+3.1+8.2±4.0
FH down the line17%+1.7+1.4−1.7+1.3±4.3
FH slice through the middle12%−4.2+3.3−1.0−1.8±2.2
FH slice down the line4%−4.3+1.0−0.1−3.3±2.6

Lean FH crosscourt: +4.9±3.4 per 100 returns v the current mix (729 returns charted)

1st serve to the backhand

ReturnNowTourOwnv ChristopherValue
BH slice through the middle38%−4.2+3.4−1.2−2.0±2.2
BH slice crosscourt22%+0.5+4.2−1.5+3.2±2.8
BH through the middle15%+6.4+3.0+0.9+10.4±2.6
BH slice down the line9%−8.4+3.5−2.6−7.5±3.3
BH crosscourt8%+8.8+2.1−0.2+10.8±3.5

Lean BH crosscourt: +9.0±3.4 per 100 returns v the current mix (754 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv ChristopherValue
FH through the middle47%−3.5+1.2+2.3+0.1±2.8
FH crosscourt25%−0.2−2.8+3.4+0.3±4.4
FH down the line23%−1.8−1.3+0.3−2.8±4.7
FH slice through the middle5%−12.7+1.3±0.0−11.3±1.3

Lean FH crosscourt: +1.4±3.7 per 100 returns v the current mix (204 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv ChristopherValue
BH through the middle28%−2.9−1.1+2.1−1.9±2.2
BH crosscourt23%+1.0+0.6+0.1+1.7±2.8
BH slice crosscourt20%−4.0+0.5±0.0−3.5±1.7
BH slice through the middle13%−11.3−1.2±0.0−12.5±1.7
BH down the line12%−0.2+1.5±0.0+1.3±5.0

Lean BH crosscourt: +4.3±2.4 per 100 returns v the current mix (585 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.

Christopher Oconnell

Favour

ShotEdgeOwnTheirs
BH to their backhand · return +1+5.3±3.0+1.5+3.8
FH to the middle · return +1+3.3±2.6+3.5−0.2
BH slice to the middle · rally+2.9±2.0+2.0+0.9
FH to the middle · rally+1.2±1.8+1.3−0.1
BH slice to their backhand · rally+0.9±1.7+0.6+0.3
FH to their backhand · serve +1+0.8±2.6−0.6+1.4

Avoid

ShotEdgeOwnTheirs
BH to their forehand · rally−5.9±3.8−3.2−2.7
FH to their backhand · return−4.1±3.3−2.2−1.9
FH to their backhand · return +1−3.3±3.6−3.3±0.0
FH to their backhand · rally−2.7±2.1−2.3−0.3
BH to the middle · rally−2.1±1.9−1.1−1.0

Tommy Haas

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+3.3±3.9−1.2+4.5
FH to the middle · return +1+3.0±2.6+0.5+2.5
BH to the middle · return +1+2.2±2.4+0.3+1.9
FH to the middle · return+2.0±2.0+1.3+0.7
BH slice to the middle · return+1.4±2.1+1.9−0.6
FH to the middle · rally+0.7±1.8−0.1+0.8

Avoid

ShotEdgeOwnTheirs
FH to their backhand · serve +1−4.2±2.7−1.3−2.9
FH to their backhand · return +1−4.1±3.6−3.1−1.0
FH to their forehand · serve +1−3.1±3.0−2.0−1.1
BH to their backhand · serve +1−2.4±2.6+0.3−2.8
BH to their forehand · return−2.1±4.3−0.8−1.4

Against Tommy Haas-like opponents

Christopher Oconnell vMatchesServe pts wonReturn pts won
All charted opponents–60.0%33.9%
Players most similar to Tommy Haas1 68.0%32.7%

Similar by tactical fingerprint: Lorenzo Musetti, Stan Wawrinka, Benjamin Bonzi, Jo Wilfried Tsonga, Juan Martin Del Potro, Roger Federer, Marcos Baghdatis, David Nalbandian, Ivan Ljubicic, James Blake. When two players have rarely met, their records against these lookalikes fill the gap.