Game plan
Ivo Karlovic v Steve Johnson
Every number combines what Ivo Karlovic does well with what Steve Johnson allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective
Forecast
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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Ivo Karlovic's record against Steve Johnson's tactical lookalikes and in their charted head-to-heads (lookalikes: −2.7 on serve, −12.0 on return vs expectation (202 points); head-to-head: −0.9 on serve, +5.2 on return vs expectation (126 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
| Career | Ivo | Steve |
|---|---|---|
| Direction choice | −0.09 ±0.11 better than 32% | +0.20 ±0.08 better than 95% |
| Shot selection | +0.49 ±0.20 better than 92% | −1.01 ±0.24 better than 2% |
| Execution | −2.18 ±0.54 better than 1% | −1.39 ±0.57 better than 13% |
| Points left on the table | 4.41 ±0.22 lower than 2% | 2.71 ±0.16 lower than 39% |
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.
Ivo Karlovic serving
Deuce court
| 1st serve | Now | Ivo wins | v Steve | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 44% | 84% | 77% | 86.8%±3.4 | 57% ▲ |
| Body | 8% | 66% | 72% | 74.7%±8.7 | 0% ▼ |
| T | 48% | 82% | 79% | 85.0%±3.7 | 43% ▼ |
Optimal v Steve Johnson: +0.8±0.6 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.8 per 100 first serves in before the returner adjusts.
Ad court
| 1st serve | Now | Ivo wins | v Steve | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 62% | 82% | 79% | 86.6%±3.4 | 55% ▼ |
| Body | 7% | 66% | 64% | 66.8%±10.9 | 0% ▼ |
| T | 31% | 78% | 82% | 86.1%±3.9 | 45% ▲ |
Optimal v Steve Johnson: +0.9±0.7 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.5 per 100 first serves in before the returner adjusts.
Steve Johnson serving
Deuce court
| 1st serve | Now | Steve wins | v Ivo | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 45% | 70% | 81% | 78.2%±4.7 | 42% ▼ |
| Body | 10% | 66% | 79% | 80.4%±6.9 | 0% ▼ |
| T | 45% | 77% | 84% | 85.2%±3.9 | 58% ▲ |
Optimal v Ivo Karlovic: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +3.6 per 100 first serves in before the returner adjusts.
Ad court
| 1st serve | Now | Steve wins | v Ivo | Matchup | Optimal |
|---|---|---|---|---|---|
| Wide | 56% | 75% | 78% | 79.8%±4.5 | 53% ▼ |
| Body | 11% | 67% | 72% | 75.8%±8.4 | 0% ▼ |
| T | 34% | 70% | 81% | 80.0%±5.1 | 47% ▲ |
Optimal v Ivo Karlovic: +0.8±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +0.5 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.
Ivo Karlovic returning
1st serve to the forehand
| Return | Now | Tour | Own | v Steve | Value |
|---|---|---|---|---|---|
| FH through the middle | 47% | +4.3 | −2.9 | +1.5 | +2.8±2.4 |
| FH crosscourt | 20% | +5.5 | +0.5 | +3.9 | +9.9±4.2 |
| FH down the line | 16% | +1.7 | −1.2 | +1.9 | +2.4±4.3 |
| FH slice through the middle | 9% | −4.2 | +0.2 | +1.1 | −2.9±2.3 |
| FH slice crosscourt | 5% | −4.3 | +0.3 | ±0.0 | −4.0±2.0 |
Lean FH crosscourt: +6.8±3.6 per 100 returns v the current mix (634 returns charted)
1st serve to the backhand
| Return | Now | Tour | Own | v Steve | Value |
|---|---|---|---|---|---|
| BH slice through the middle | 58% | −4.2 | +1.0 | +0.5 | −2.7±2.0 |
| BH slice crosscourt | 23% | +0.5 | −1.3 | −0.6 | −1.3±2.7 |
| BH slice down the line | 15% | −8.4 | ±0.0 | −1.7 | −10.1±3.0 |
| BH through the middle | 3% | +6.4 | −3.3 | −1.0 | +2.2±2.6 |
| BH crosscourt | 2% | +8.8 | −5.6 | −2.5 | +0.7±3.2 |
Lean BH through the middle: +5.5±2.9 per 100 returns v the current mix (924 returns charted)
2nd serve to the forehand
| Return | Now | Tour | Own | v Steve | Value |
|---|---|---|---|---|---|
| FH through the middle | 46% | −3.5 | −5.1 | −0.1 | −8.7±2.9 |
| FH crosscourt | 34% | −0.2 | −3.4 | +3.5 | −0.1±4.3 |
| FH down the line | 17% | −1.8 | −2.3 | +1.7 | −2.3±4.6 |
| FH slice through the middle | 3% | −12.7 | −0.1 | +1.2 | −11.5±1.4 |
Lean FH crosscourt: +4.6±3.2 per 100 returns v the current mix (163 returns charted)
2nd serve to the backhand
| Return | Now | Tour | Own | v Steve | Value |
|---|---|---|---|---|---|
| BH slice through the middle | 38% | −11.3 | −1.1 | −0.7 | −13.1±2.0 |
| BH slice crosscourt | 20% | −4.0 | −1.5 | −2.3 | −7.8±2.5 |
| FH inside-in | 14% | +0.6 | −4.2 | +3.5 | −0.1±4.3 |
| FH through the middle | 12% | −2.9 | −0.6 | −0.1 | −3.6±2.4 |
| BH slice down the line | 10% | −9.3 | −1.0 | −0.6 | −10.8±3.5 |
| FH inside-out | 6% | +1.0 | −2.1 | +1.7 | +0.6±3.7 |
Lean FH inside-out: +8.6±3.6 per 100 returns v the current mix (506 returns charted)
Steve Johnson returning
1st serve to the forehand
| Return | Now | Tour | Own | v Ivo | Value |
|---|---|---|---|---|---|
| FH through the middle | 36% | +4.3 | −0.8 | −2.9 | +0.6±2.6 |
| FH crosscourt | 20% | +5.5 | −3.1 | −1.9 | +0.5±4.4 |
| FH down the line | 19% | +1.7 | −1.6 | −0.1 | ±0.0±4.3 |
| FH slice through the middle | 15% | −4.2 | +0.7 | −2.3 | −5.8±2.3 |
| FH slice down the line | 6% | −4.3 | +1.7 | +1.2 | −1.4±3.0 |
Lean FH through the middle: +1.5±2.1 per 100 returns v the current mix (318 returns charted, inside the 90% margin)
1st serve to the backhand
| Return | Now | Tour | Own | v Ivo | Value |
|---|---|---|---|---|---|
| BH slice through the middle | 28% | −4.2 | +1.2 | −3.2 | −6.1±2.3 |
| BH slice crosscourt | 25% | +0.5 | +3.0 | −2.8 | +0.7±3.0 |
| BH through the middle | 23% | +6.4 | −2.6 | −0.5 | +3.3±2.4 |
| BH crosscourt | 12% | +8.8 | −1.9 | −0.3 | +6.5±3.3 |
| BH down the line | 7% | +4.2 | +0.1 | −0.1 | +4.3±4.4 |
Lean BH crosscourt: +6.6±3.1 per 100 returns v the current mix (339 returns charted)
2nd serve to the forehand
| Return | Now | Tour | Own | v Ivo | Value |
|---|---|---|---|---|---|
| FH through the middle | 39% | −3.5 | +1.5 | −2.0 | −4.0±2.6 |
| FH crosscourt | 28% | −0.2 | −1.9 | −0.6 | −2.7±4.2 |
| FH down the line | 24% | −1.8 | +0.5 | −2.2 | −3.5±4.4 |
| FH slice through the middle | 10% | −12.7 | +0.1 | −2.3 | −14.8±2.0 |
Lean FH crosscourt: +1.8±3.3 per 100 returns v the current mix (72 returns charted, inside the 90% margin)
2nd serve to the backhand
| Return | Now | Tour | Own | v Ivo | Value |
|---|---|---|---|---|---|
| BH slice crosscourt | 26% | −4.0 | +0.1 | −4.8 | −8.7±2.5 |
| BH through the middle | 15% | −2.9 | −1.7 | −2.2 | −6.8±2.3 |
| BH slice through the middle | 14% | −11.3 | −0.3 | −3.6 | −15.2±2.4 |
| FH through the middle | 11% | −2.9 | +0.8 | −2.0 | −4.0±2.2 |
| BH crosscourt | 10% | +1.0 | −3.2 | +2.7 | +0.5±2.9 |
Lean BH crosscourt: +6.7±2.8 per 100 returns v the current mix (247 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 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.
Ivo Karlovic
Favour
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| FH volley to their forehand · rally | +5.6±8.1 | −1.8 | +7.3 |
| BH slice to the middle · return | ±0.0±2.8 | −1.1 | +1.1 |
| FH to their forehand · serve +1 | −0.2±5.5 | +2.6 | −2.8 |
| FH to their forehand · return | −0.4±5.7 | −7.7 | +7.2 |
| FH to the middle · return | −1.4±3.2 | −2.6 | +1.3 |
| FH to their backhand · return | −1.4±4.9 | −5.2 | +3.8 |
Avoid
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| FH to their forehand · rally | −10.8±4.6 | −6.9 | −3.9 |
| FH to their backhand · return +1 | −10.7±5.1 | −5.6 | −5.1 |
| FH to the middle · return +1 | −7.6±3.6 | −6.4 | −1.3 |
| BH slice to their backhand · rally | −6.8±3.5 | −2.9 | −3.8 |
| FH to their forehand · return +1 | −6.2±5.4 | −4.8 | −1.5 |
Steve Johnson
Favour
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| FH to their backhand · return +1 | +11.6±5.2 | −1.1 | +12.6 |
| FH to their forehand · return +1 | +4.3±5.5 | +1.5 | +2.8 |
| FH to their backhand · serve +1 | +2.4±4.3 | +4.0 | −1.6 |
| BH to the middle · return | +1.6±3.2 | +0.7 | +0.8 |
| BH to their backhand · return | +1.5±4.1 | −2.5 | +4.1 |
| FH to their backhand · return | −1.5±4.6 | −0.9 | −0.6 |
Avoid
| Shot | Edge | Own | Theirs |
|---|---|---|---|
| FH to their backhand · rally | −5.9±4.0 | −2.6 | −3.3 |
| FH to their forehand · rally | −5.6±4.3 | −0.6 | −5.0 |
| FH to their forehand · serve +1 | −5.0±4.8 | −1.1 | −3.9 |
| FH to the middle · serve +1 | −4.7±3.4 | −2.3 | −2.4 |
| BH slice to their backhand · rally | −4.6±2.6 | −0.1 | −4.4 |
Against Steve Johnson-like opponents
| Ivo Karlovic v | Matches | Serve pts won | Return pts won |
|---|---|---|---|
| All charted opponents | – | 70.9% | 25.6% |
| Players most similar to Steve Johnson | 2 | 66.7% | 16.3% |
| Steve Johnson (charted head-to-head) | 1 | 71.6% | 33.9% |
Similar by tactical fingerprint: Matteo Berrettini, Grigor Dimitrov, Alexei Popyrin, Dominic Thiem, Milos Raonic, Jeremy Chardy, Malek Jaziri, Tim Van Rijthoven, Jo Wilfried Tsonga, Fernando Gonzalez. When two players have rarely met, their records against these lookalikes fill the gap.