RallyIQ

Game plan

Yevgeny Kafelnikov v Nicolas Kiefer

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

Forecast

Yevgeny Kafelnikov wins, best of 3 71%90%: 50%–87% · best of 5: 76%
Serve points won 64.2% / 59.8% Yevgeny / Nicolas · tour 63.8%
Strengths only, no similarity priors 71%serve 64.9% / 60.5%

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 At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers.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 Yevgeny Kafelnikov's record against Nicolas Kiefer's tactical lookalikes and in their charted head-to-heads (lookalikes: −5.0 on serve, +5.9 on return vs expectation (434 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

CareerYevgenyNicolas
Direction choice+0.30 ±0.06
better than 98%
+0.09 ±0.17
better than 80%
Shot selection−0.27 ±0.14
better than 26%
+0.16 ±0.23
better than 71%
Execution−0.55 ±0.29
better than 42%
−1.52 ±0.70
better than 9%
Points left on the table2.43 ±0.15
lower than 70%
2.54 ±0.35
lower than 56%

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.

Yevgeny Kafelnikov serving

Deuce court

1st serveNowYevgeny winsv NicolasMatchupOptimal
Wide51%72%76%75.3%±6.864% ▲
Body7%66%71%72.8%±11.60% ▼
T42%76%77%78.5%±6.236% ▼

Optimal v Nicolas Kiefer: +0.3±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowYevgeny winsv NicolasMatchupOptimal
Wide50%73%73%72.8%±7.044% ▼
Body6%63%62%61.6%±13.60% ▼
T43%69%79%76.3%±7.056% ▲

Optimal v Nicolas Kiefer: +0.6±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving T every time would read +2.7 per 100 first serves in before the returner adjusts.

Nicolas Kiefer serving

Deuce court

1st serveNowNicolas winsv YevgenyMatchupOptimal
Wide50%72%76%74.9%±6.143% ▼
Body6%63%60%60.2%±13.30% ▼
T44%77%79%80.6%±5.957% ▲

Optimal v Yevgeny Kafelnikov: +0.7±0.7 per 100 first serves (faults included) over the current mix. Serving T every time would read +4.1 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowNicolas winsv YevgenyMatchupOptimal
Wide52%71%75%73.1%±7.166% ▲
Body3%59%62%58.2%±15.00% ▼
T44%70%72%70.2%±7.634% ▼

Optimal v Yevgeny Kafelnikov: +0.2±0.7 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.8 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.

Yevgeny Kafelnikov returning

1st serve to the forehand

ReturnNowTourOwnv NicolasValue
FH through the middle46%+4.3−1.0+0.7+4.0±2.5
FH down the line28%+1.7+1.7−2.9+0.4±3.9
FH crosscourt25%+5.5−0.6−1.0+3.9±3.9
BH through the middle1%+6.6−0.1±0.0+6.5±2.5

Lean FH through the middle: +1.0±2.0 per 100 returns v the current mix (998 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv NicolasValue
BH through the middle28%+6.4−1.2±0.0+5.2±2.5
BH crosscourt25%+8.8−2.0+4.2+11.0±3.1
BH slice through the middle18%−4.2−0.2−1.7−6.2±2.2
BH slice crosscourt12%+0.5+0.4−2.3−1.4±2.8
BH down the line10%+4.2−0.6+0.2+3.9±4.2

Lean BH crosscourt: +8.0±2.5 per 100 returns v the current mix (1105 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv NicolasValue
FH down the line34%−1.8−0.4+0.3−2.0±4.3
FH through the middle34%−3.5−0.1+1.8−1.8±2.7
FH crosscourt29%−0.2−4.3−0.7−5.2±4.1
BH through the middle2%+0.1+1.3+0.9+2.3±1.9
BH inside-out1%+0.9−1.2+1.7+1.4±3.6

Lean FH through the middle: +0.9±2.6 per 100 returns v the current mix (473 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv NicolasValue
BH crosscourt44%+1.0−1.3−2.7−3.0±2.7
BH through the middle25%−2.9−1.3+0.9−3.3±2.3
BH down the line17%−0.2+2.1+1.7+3.5±4.5
BH slice crosscourt5%−4.0−1.5+1.8−3.7±2.6
BH slice through the middle4%−11.3−1.7+1.0−12.0±2.3

Lean BH down the line: +5.9±4.0 per 100 returns v the current mix (1049 returns charted)

Nicolas Kiefer returning

1st serve to the forehand

ReturnNowTourOwnv YevgenyValue
FH through the middle53%+4.3+1.6−0.1+5.8±2.4
FH crosscourt30%+5.5+0.2−1.9+3.9±3.9
FH down the line18%+1.7−3.0−0.4−1.7±3.8

Lean FH through the middle: +1.9±1.8 per 100 returns v the current mix (148 returns charted)

1st serve to the backhand

ReturnNowTourOwnv YevgenyValue
BH through the middle37%+6.4+0.6−2.0+5.0±2.4
BH crosscourt30%+8.8−0.8−3.6+4.4±3.2
BH slice through the middle14%−4.2+0.6+0.6−3.1±2.0
BH down the line9%+4.2+3.2+2.2+9.6±4.1
BH slice crosscourt7%+0.5−0.9+0.4±0.0±2.4

Lean BH through the middle: +1.7±1.9 per 100 returns v the current mix (161 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv YevgenyValue
BH crosscourt52%+1.0−0.6−0.6−0.2±2.7
BH through the middle38%−2.9+0.7+0.1−2.1±2.1
BH down the line10%−0.2−0.3−2.8−3.2±4.0

Lean BH crosscourt: +1.0±1.6 per 100 returns v the current mix (122 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.

Yevgeny Kafelnikov

Favour

ShotEdgeOwnTheirs
FH to their backhand · serve +1+8.9±3.9+2.5+6.4
FH to their forehand · serve +1+4.3±4.6−2.1+6.4
FH to their forehand · return +1+3.5±5.2−0.2+3.7
BH to their backhand · serve +1+2.2±3.7−0.3+2.5
FH to the middle · return+0.9±3.0−0.7+1.6
BH to their backhand · rally±0.0±2.3−0.2+0.2

Avoid

ShotEdgeOwnTheirs
FH to their forehand · return−6.0±5.5−4.4−1.5
BH to their backhand · return +1−3.9±4.0−2.6−1.3
FH to the middle · rally−2.8±2.7−1.2−1.6
BH to the middle · return−2.5±2.8−1.4−1.1
BH to the middle · rally−2.1±2.4−3.2+1.1

Nicolas Kiefer

Favour

ShotEdgeOwnTheirs
FH to their forehand · return+3.5±5.5+4.3−0.7
FH to the middle · return+2.1±2.9+1.1+1.0
BH to their backhand · return +1+0.7±4.0±0.0+0.6
BH to the middle · return−0.9±2.6+1.4−2.3
BH to the middle · rally−1.1±2.4+0.1−1.2
BH to their backhand · rally−1.2±2.2−1.5+0.3

Avoid

ShotEdgeOwnTheirs
FH to their forehand · serve +1−7.4±4.7−4.3−3.1
FH to their backhand · rally−7.2±3.0−5.5−1.7
BH to their backhand · return−6.1±3.2−2.2−3.9
FH to their forehand · rally−4.6±3.0−4.2−0.4
BH to their backhand · serve +1−3.1±3.7−4.4+1.3

Against Nicolas Kiefer-like opponents

Yevgeny Kafelnikov vMatchesServe pts wonReturn pts won
All charted opponents–61.8%34.6%
Players most similar to Nicolas Kiefer3 57.6%43.8%

Similar by tactical fingerprint: Marin Cilic, Otto Virtanen, Andreas Seppi, Mardy Fish, Mario Ancic, Thomas Johansson, Sebastien Grosjean, Wayne Ferreira, Magnus Norman. When two players have rarely met, their records against these lookalikes fill the gap.