RallyIQ

Game plan

Jonas Bjorkman v Yevgeny Kafelnikov

Every number combines what Jonas Bjorkman does well with what Yevgeny Kafelnikov allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Jonas Bjorkman wins, best of 3 34%90%: 17%–55% · best of 5: 30%
Serve points won 61.0% / 64.3% Jonas / Yevgeny · tour 63.8%
Strengths only, no similarity priors 35%serve 61.2% / 64.2%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Jonas Bjorkman's record against Yevgeny Kafelnikov's tactical lookalikes and in their charted head-to-heads (lookalikes: +1.0 on serve, +0.3 on return vs expectation (178 points); head-to-head: −6.9 on serve, −1.7 on return vs expectation (129 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

CareerJonasYevgeny
Direction choice−0.13 ±0.17
better than 25%
+0.30 ±0.06
better than 98%
Shot selection+0.25 ±0.18
better than 76%
−0.27 ±0.14
better than 26%
Execution−1.30 ±0.45
better than 15%
−0.55 ±0.29
better than 42%
Points left on the table3.56 ±0.32
lower than 7%
2.43 ±0.15
lower than 70%

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.

Jonas Bjorkman serving

Deuce court

1st serveNowJonas winsv YevgenyMatchupOptimal
Wide39%69%76%72.4%±5.952% ▲
Body22%65%60%62.4%±9.59% ▼
T39%72%79%76.3%±5.839%

Optimal v Yevgeny Kafelnikov: +1.0±0.9 per 100 first serves (faults included) over the current mix. Serving T every time would read +4.6 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowJonas winsv YevgenyMatchupOptimal
Wide37%68%75%69.4%±7.050% ▲
Body19%59%62%57.6%±10.35% ▼
T44%67%72%67.0%±6.845%

Optimal v Yevgeny Kafelnikov: +0.8±0.9 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +3.3 per 100 first serves in before the returner adjusts.

Yevgeny Kafelnikov serving

Deuce court

1st serveNowYevgeny winsv JonasMatchupOptimal
Wide51%72%79%78.2%±5.264% ▲
Body7%66%65%66.9%±10.10% ▼
T42%76%80%80.8%±5.536% ▼

Optimal v Jonas Bjorkman: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.3 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowYevgeny winsv JonasMatchupOptimal
Wide50%73%79%78.8%±6.044% ▼
Body6%63%69%68.4%±10.10% ▼
T43%69%81%79.0%±5.656% ▲

Optimal v Jonas Bjorkman: +0.6±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +0.8 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.

Jonas Bjorkman returning

1st serve to the forehand

ReturnNowTourOwnv YevgenyValue
FH through the middle44%+4.3−0.5−0.1+3.6±2.3
FH crosscourt31%+5.5−4.9−1.9−1.2±3.9
FH down the line23%+1.7−2.0−0.4−0.7±3.9
FH slice through the middle2%−4.2−0.6+0.5−4.3±1.9

Lean FH through the middle: +2.6±2.0 per 100 returns v the current mix (239 returns charted)

1st serve to the backhand

ReturnNowTourOwnv YevgenyValue
BH through the middle41%+6.4−2.4−2.0+2.0±2.4
BH crosscourt34%+8.8+0.3−3.6+5.4±3.2
BH down the line8%+4.2−0.6+2.2+5.8±4.1
BH slice through the middle8%−4.2−1.3+0.6−4.9±1.9
BH slice crosscourt5%+0.5−0.6+0.4+0.3±2.3

Lean BH crosscourt: +3.0±2.4 per 100 returns v the current mix (167 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv YevgenyValue
FH through the middle51%−3.5−0.4±0.0−3.9±2.5
FH crosscourt25%−0.2−1.0+1.2±0.0±3.9
FH down the line24%−1.8−0.3−0.1−2.2±4.0

Lean FH crosscourt: +2.5±3.4 per 100 returns v the current mix (84 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv YevgenyValue
BH crosscourt49%+1.0+0.7−0.6+1.2±2.7
BH through the middle33%−2.9+1.8+0.1−1.0±2.0
BH down the line19%−0.2+1.4−2.8−1.6±4.2

Lean BH crosscourt: +1.2±1.7 per 100 returns v the current mix (80 returns charted, inside the 90% margin)

Yevgeny Kafelnikov returning

1st serve to the forehand

ReturnNowTourOwnv JonasValue
FH through the middle46%+4.3−1.0+0.4+3.7±2.4
FH down the line28%+1.7+1.7+0.8+4.1±3.9
FH crosscourt25%+5.5−0.6+3.5+8.4±3.9
BH through the middle1%+6.6−0.1+0.1+6.6±2.4

Lean FH crosscourt: +3.4±3.3 per 100 returns v the current mix (998 returns charted)

1st serve to the backhand

ReturnNowTourOwnv JonasValue
BH through the middle28%+6.4−1.2+0.1+5.3±2.4
BH crosscourt25%+8.8−2.0−0.4+6.4±3.1
BH slice through the middle18%−4.2−0.2+0.9−3.5±2.3
BH slice crosscourt12%+0.5+0.4−0.4+0.5±2.9
BH down the line10%+4.2−0.6−2.3+1.4±4.5
FH through the middle2%+7.7+0.3+0.4+8.5±2.3

Lean FH through the middle: +6.1±2.6 per 100 returns v the current mix (1105 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv JonasValue
FH down the line34%−1.8−0.4−0.7−2.9±4.4
FH through the middle34%−3.5−0.1−0.4−4.0±2.7
FH crosscourt29%−0.2−4.3−2.1−6.6±4.1
BH through the middle2%+0.1+1.3−0.3+1.0±1.8
BH inside-out1%+0.9−1.2−3.0−3.2±3.6

Lean FH down the line: +1.3±3.2 per 100 returns v the current mix (473 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv JonasValue
BH crosscourt44%+1.0−1.3−1.0−1.4±2.7
BH through the middle25%−2.9−1.3−0.3−4.5±2.2
BH down the line17%−0.2+2.1−3.0−1.1±4.6
BH slice crosscourt5%−4.0−1.5+1.5−4.0±2.5
BH slice through the middle4%−11.3−1.7+1.7−11.3±2.4

Lean BH down the line: +1.7±4.0 per 100 returns v the current mix (1049 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 hard. Each player's hard record is shrunk toward their all-surface one, so a thin sample on it moves the numbers only a little.

Jonas Bjorkman

Favour

ShotEdgeOwnTheirs
BH to their backhand · serve +1+3.8±3.6+2.5+1.3
BH volley to their backhand · serve +1+0.7±6.6−0.8+1.5
FH to their backhand · serve +1+0.3±4.7+0.4−0.1
BH to their forehand · rally±0.0±4.9−0.5+0.5
BH to their backhand · rally−0.6±2.6−0.9+0.3
FH to the middle · return−0.6±2.6−1.6+1.0

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return−8.0±5.3−7.3−0.7
FH to the middle · rally−7.7±3.0−5.7−2.0
FH to their forehand · serve +1−5.4±5.0−2.4−3.1
FH to their backhand · rally−5.1±3.4−3.4−1.7
BH to the middle · serve +1−4.9±3.4−3.3−1.6

Yevgeny Kafelnikov

Favour

ShotEdgeOwnTheirs
BH volley to their backhand · serve +1+6.4±7.2−1.7+8.0
FH to their backhand · serve +1+4.6±4.6+2.5+2.2
BH to their forehand · return +1+4.3±6.2±0.0+4.3
BH slice to their backhand · return+2.8±3.6+1.2+1.6
FH to their backhand · return+2.2±4.5+1.1+1.1
BH to their backhand · rally+1.8±2.9−0.2+1.9

Avoid

ShotEdgeOwnTheirs
BH to their backhand · return +1−9.1±4.0−2.6−6.5
FH volley to their backhand · serve +1−7.5±7.5−6.5−1.0
BH to their forehand · return−5.6±5.4−0.5−5.1
BH to the middle · rally−3.9±2.8−3.2−0.8
BH to their backhand · return−3.5±3.4−0.8−2.7

Against Yevgeny Kafelnikov-like opponents

Jonas Bjorkman vMatchesServe pts wonReturn pts won
All charted opponents–61.6%30.2%
Players most similar to Yevgeny Kafelnikov1 62.3%34.7%
Yevgeny Kafelnikov (charted head-to-head)1 55.2%33.9%

Similar by tactical fingerprint: Richard Gasquet, Tomas Berdych, David Nalbandian, Ivan Ljubicic, Nicolas Kiefer, Andre Agassi, Arnaud Clement, Thomas Johansson, Wayne Ferreira, Thomas Enqvist. When two players have rarely met, their records against these lookalikes fill the gap.

Charted head-to-head