RallyIQ

ATP · Right-handed · 17 charted matches · 2010–2022

Sergiy Stakhovsky

Archetype: Serve-and-volleyer · Net rusher

Against an average opponent

Serve points won 65.2% ±2.9 raw 64.7% · tour 63.4% · 1,234 points
Return points won 33.2% ±2.9 raw 30.3% · tour 36.6% · 1,211 points

Serve and return points won, refitted against every opponent at once so a record built on weak or strong opposition is put on the same scale. Career, all surfaces, with a 90% margin. Raw is the plain share of points won.

Value per 100 shots

Direction choice +0.03 ±0.12 better than 65% of ATP · raw +0.04
Shot selection −0.26 ±0.23 better than 27% of ATP · raw −0.25
Execution −1.63 ±0.76 better than 8% of ATP · raw −1.42
Tactical adaptability +0.13 first serves toward what's working, set to set · 14 matches
Adaptation speed +0.08 same, every two to three service games · per 100 first serves
Points left on the table 3.01 per 100 shots vs best direction · lower than 19% of ATP

Points gained per 100 shots compared with an average tour player in the same position, adjusted for the strength of the opponents faced, with a 90% margin (shots clustered by match). Raw is before the opponent adjustment. Built on 5,094 shots.

Shot expected value

The share of points Sergiy Stakhovsky goes on to win after each option in the positions they face most often, shrunk toward tour average when the sample is small. Showing the 8 most-used options; teal marks the best one with at least 30 shots.

Rally, shots 5–8: drive to your backhand side

position worth 46% to the average player · 225 shots

OptionUsedWin %Tour
BH slice crosscourt 25% 40.1%±9.2 42.5%
BH crosscourt 21% 42.6%±9.9 47.6%
BH through the middle 20% 48.0%±10.3 43.7%
BH slice through the middle 13% 36.8%±11.3 35.1%
BH down the line 13% 47.5%±11.7 46.4%
BH slice down the line 9% 36.0%±12.5 37.1%

Rally, shots 5–8: drive to your forehand side

position worth 44% to the average player · 202 shots

OptionUsedWin %Tour
FH crosscourt 38% 44.7%±8.3 46.6%
FH through the middle 28% 39.3%±9.2 41.5%
FH down the line 28% 46.0%±9.4 44.7%

Return +1: drive to your backhand side

position worth 44% to the average player · 185 shots

OptionUsedWin %Tour
BH slice crosscourt 26% 38.5%±9.7 40.9%
BH through the middle 20% 50.2%±10.9 43.0%
BH crosscourt 20% 44.5%±10.8 46.9%
BH slice through the middle 15% 28.7%±10.9 32.6%
BH down the line 11% 52.1%±13.0 44.2%
BH slice down the line 9% 38.0%±13.3 33.3%

Rally, shots 5–8: drive to your middle

position worth 51% to the average player · 154 shots

OptionUsedWin %Tour
FH down the line 20% 51.6%±11.5 51.5%
FH crosscourt 18% 49.0%±11.9 52.7%
FH through the middle 15% 52.1%±12.5 47.0%
BH through the middle 12% 51.0%±13.3 46.8%
BH crosscourt 8% 48.0%±14.3 49.1%
BH slice crosscourt 7% 49.7%±14.8 47.0%
BH slice through the middle 6% 43.2%±14.9 44.8%

Serve under pressure

Pressure predictability index +5 How much less varied Sergiy Stakhovsky's first-serve direction gets on break points. Positive means easier to read. Based on 112 break-point first serves.

Deuce court

1st serveUsageBreak ptWon when in
Wide 46% 56% ▲ 73% / 73%
Body 14% 15% 60% / 63%
T 40% 30% ▼ 80% / 75%

612 normal · 27 break-point 1st serves

Ad court

1st serveUsageBreak ptWon when in
Wide 51% 47% 72% / 73%
Body 9% 6% 62% / 63%
T 40% 47% 73% / 72%

505 normal · 85 break-point 1st serves

Is the serve mix in equilibrium?

Game theory says a well-mixed server wins equally often with every direction they use. If one direction wins more, it's underused and points are being left behind. This is the minimax test Walker and Wooders ran on Wimbledon finals, applied to every charted first serve. Win rates include faults. "Optimal" allows for returners reading a habit. No measurable response (−0.05 ± 0.15 points per 100 serves for every 10 points of habitual usage), measured from ATP servers whose mix drifted between matches. Shifts stay within the range servers' habits actually vary, the only range that response was measured over.

Deuce court

1st serveUsagePoints wonOptimal
Wide46% 63.6%±4.4 n=296 46%
Body14% 60.5%±7.4 n=89 1% ▼
T40% 70.4%±4.5 n=254 53% ▲

Off equilibrium (p = 0.043): serve T more. Gap 4.5 points per 100 first serves.
Optimal mix: +1.0 per 100 first serves.

Ad court

1st serveUsagePoints wonOptimal
Wide50% 63.2%±4.4 n=296 63% ▲
Body8% 60.1%±9.0 n=50 0% ▼
T41% 65.0%±4.7 n=244 37% ▼

Consistent with an optimal mix (p = 0.60).
Optimal mix: +0.5 per 100 first serves.

Exploitability 0.75 points per 100 first serves What the optimal mix would win over the current one, both courts. More exploitable than 100% of ATP servers. Tested on matches they weren't fitted on, ATP mixes picked this way win 0.33 per 100 first serves on average.

Repeating the previous direction to the same court: +2.2±3.9 points per 100 against switching. Negative means returners read repeats. Tour-wide, repeating costs women about 0.4 points per 100 and costs men nothing, so men's returners don't measurably anticipate direction. (503 repeats, 694 switches.)

Return by serve direction

Return points won against each serve direction, compared with the tour average.

ServeCourtDirectionPointsWonvs tour
1stAd courtBody 26 34% −2.9±10.4
1stAd courtT 162 24% −3.9±5.1
1stAd courtWide 173 23% −4.0±4.9
1stDeuce courtBody 44 31% −5.6±8.9
1stDeuce courtT 188 19% −6.5±4.3
1stDeuce courtWide 177 20% −7.3±4.6
2ndAd courtBody 92 47% −2.0±7.4
2ndAd courtT 36 50% +0.4±10.1
2ndAd courtWide 87 48% −0.1±7.6
2ndDeuce courtBody 114 49% +0.1±6.9
2ndDeuce courtT 69 45% −4.3±8.2
2ndDeuce courtWide 41 40% −8.0±9.6

Signature patterns

Recurring sequences that win more than Sergiy Stakhovsky's own baseline, ranked by edge weighted by how often they're used.

Serve → +1

  1. Wide serve (ad court) → BH volley down the line used 2.5% · won 71% · −3.8±10.6 vs own baseline

Return

  1. vs wide serve (ad court) → BH slice crosscourt, mid used 4.3% · won 37% · +6.3±11.0 vs own baseline
  2. vs T serve (ad court) → FH through the middle, mid used 3.9% · won 36% · +5.8±11.2 vs own baseline
  3. vs wide serve (deuce court) → FH through the middle, mid used 4.3% · won 29% · −1.3±10.4 vs own baseline
  4. vs wide serve (deuce court) → FH through the middle used 3.9% · won 22% · −8.2±9.9 vs own baseline
  5. vs wide serve (deuce court) → FH crosscourt used 5.3% · won 21% · −9.2±9.1 vs own baseline

Rally, consecutive own shots

  1. BH through the middle → FH down the line used 3.9% · won 52% · +3.9±11.6 vs own baseline
  2. FH crosscourt → FH down the line used 4.3% · won 48% · +0.1±11.3 vs own baseline
  3. FH crosscourt → FH through the middle used 3.7% · won 47% · −1.0±11.7 vs own baseline
  4. BH slice crosscourt → BH crosscourt used 4.1% · won 43% · −4.7±11.4 vs own baseline
  5. BH crosscourt → BH crosscourt used 3.7% · won 39% · −9.0±11.4 vs own baseline

Discovered sequences

Mined from every me → opponent → me run of three shots, with no templates. Ranked by how much more often Sergiy Stakhovsky wins the point once the sequence happens, weighted by how often it happens. Think of them as chess openings.

  1. FH crosscourt → FH crosscourt → FH down the line used 1.1% · won 51% · +3.4±11.8 vs own baseline · +7.4 vs tour on the same sequence Disrupted by David Goffin (3/6)
  2. BH through the middle → FH crosscourt → FH crosscourt used 0.8% · won 50% · +2.3±12.7 vs own baseline · +8.0 vs tour on the same sequence Disrupted by David Goffin (3/8)
  3. FH crosscourt → FH down the line → BH slice crosscourt used 0.8% · won 47% · −0.1±12.7 vs own baseline · +5.0 vs tour on the same sequence
  4. FH crosscourt → FH crosscourt → FH through the middle used 0.9% · won 46% · −1.0±12.2 vs own baseline · +0.4 vs tour on the same sequence
  5. BH slice crosscourt → BH crosscourt → BH crosscourt used 0.7% · won 40% · −7.7±12.8 vs own baseline · −19.4 vs tour on the same sequence

Strengths and vulnerabilities

Value per 100 shots compared with the average player hitting (strengths) or facing (vulnerabilities) the same shot. Only shot types seen at least 120 times.

Hurts opponents most with

T 1st serve · deuce court+1.2248
BH slice to their backhand · return+1.0136
Wide 1st serve · deuce court+0.7274
Wide 1st serve · ad court+0.6283
T 1st serve · ad court+0.6234

Most exposed to

FH to their backhand · serve +1−1.5180
FH to the middle · return−0.3182
Wide 1st serve · ad court−0.2271
BH to their backhand · return±0.0168
T 1st serve · deuce court±0.0298

Active players who are best at the shot in the top weakness: Stefanos Tsitsipas, Brandon Nakashima, Rinky Hijikata, Thiago Seyboth Wild, Jannik Sinner

Tactical fingerprint

Each bar shows how far a style trait is from the ATP average, in standard deviations.

Chipped returns42%
Drop shots / shot3.5%
Serve & volley36%
Backhand slice42%
Through the middle30%
Points at net18%
FH down the line34%
Wide serves · deuce46%
Point-ending shots26.3%
Deep returns30%
BH down the line22%
T serves · ad41%
Unforced errors / shot10.7%
1st serve in62%
Wide serves · ad50%
T serves · deuce40%
Avg rally length3.4
Run-around forehands4%
Forehand share45%

Plays most like

  1. Nicolas Mahut 2007–2021 plan v
  2. Ivan Ljubicic 2003–2011 plan v
  3. Mark Philippoussis 1995–2003 plan v
  4. Andrei Pavel 1999–2006 plan v
  5. Mischa Zverev 2013–2020 plan v
  6. Roger Federer 1998–2021 plan v
  7. Daniel Altmaier 2019–2025 plan v
  8. Richard Gasquet 2002–2025 plan v

Closest from another era

  1. Mark Philippoussis 1995–2003
  2. Cedric Pioline 1992–2000
  3. Brad Gilbert 1987–1994

Charted matches