RallyIQ

ATP · Right-handed · 4 charted matches · 2022–2024

Paul Jubb

Against an average opponent

Serve points won 61.9% ±3.6 raw 62.9% · tour 63.4% · 568 points
Return points won 38.6% ±3.7 raw 36.4% · tour 36.6% · 522 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 −0.20 ±0.18 better than 13% of ATP · raw −0.19
Shot selection +0.01 ±0.18 better than 53% of ATP · raw +0.04
Execution −1.15 ±0.78 better than 21% of ATP · raw −0.76

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 2,505 shots.

Shot expected value

The share of points Paul Jubb 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 · 130 shots

OptionUsedWin %Tour
BH crosscourt 38% 46.5%±9.8 47.6%
BH through the middle 25% 50.5%±11.3 43.7%
BH down the line 9% 41.5%±14.3 46.4%
BH slice crosscourt 8% 40.3%±14.5 42.5%
BH slice down the line 8% 38.0%±14.6 37.1%

Rally, shots 5–8: drive to your middle

position worth 51% to the average player · 95 shots

OptionUsedWin %Tour
FH crosscourt 28% 71.4%±10.8 52.7%
FH through the middle 24% 42.8%±12.4 47.0%
FH down the line 22% 47.1%±12.8 51.5%
BH through the middle 13% 48.0%±14.5 46.8%
BH crosscourt 13% 46.3%±14.5 49.1%

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

position worth 44% to the average player · 90 shots

OptionUsedWin %Tour
FH crosscourt 53% 47.5%±10.0 46.6%
FH through the middle 26% 35.6%±12.0 41.5%
FH down the line 16% 35.1%±13.5 44.7%

Serve +1: deep return to your middle

position worth 47% to the average player · 86 shots

OptionUsedWin %Tour
FH down the line 30% 49.1%±12.1 47.9%
FH crosscourt 27% 42.4%±12.4 51.2%
FH through the middle 23% 51.9%±13.0 43.8%
BH crosscourt 13% 39.6%±14.5 46.4%

Serve under pressure

Pressure predictability index +2 How much less varied Paul Jubb's first-serve direction gets on break points. Positive means easier to read. Based on 46 break-point first serves.

Deuce court

1st serveUsageBreak ptWon when in
Wide 39% 31% ▼ 73% / 73%
Body 29% 15% ▼ 57% / 63%
T 32% 54% ▲ 77% / 75%

285 normal · 13 break-point 1st serves

Ad court

1st serveUsageBreak ptWon when in
Wide 39% 33% 82% / 73%
Body 26% 33% 60% / 63%
T 35% 33% 69% / 72%

237 normal · 33 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
Wide39% 66.8%±6.4 n=115 52% ▲
Body29% 54.2%±7.6 n=85 15% ▼
T33% 65.9%±6.9 n=98 33%

Off equilibrium (p = 0.023): serve wide more. Gap 3.9 points per 100 first serves.
Optimal mix: +1.0 per 100 first serves.

Ad court

1st serveUsagePoints wonOptimal
Wide38% 67.2%±6.7 n=103 51% ▲
Body27% 58.8%±8.0 n=72 14% ▼
T35% 61.9%±7.1 n=95 35%

Consistent with an optimal mix (p = 0.27).
Optimal mix: +0.8 per 100 first serves.

Exploitability 0.90 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: −1.3±6.2 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. (162 repeats, 398 switches.)

Return by serve direction

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

ServeCourtDirectionPointsWonvs tour
1stAd courtBody 7 44% +6.5±13.4
1stAd courtT 64 32% +4.3±7.9
1stAd courtWide 95 27% +0.1±6.6
1stDeuce courtBody 10 33% −4.2±12.2
1stDeuce courtT 83 27% +1.9±6.9
1stDeuce courtWide 87 32% +4.6±7.1
2ndAd courtBody 19 53% +3.3±11.7
2ndAd courtT 23 49% −0.6±11.3
2ndAd courtWide 42 47% −1.8±9.7
2ndDeuce courtBody 19 54% +5.5±11.7
2ndDeuce courtT 51 39% −10.3±8.9
2ndDeuce courtWide 22 53% +4.7±11.4

Signature patterns

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

Serve → +1

  1. Body serve (deuce court) → FH crosscourt used 6.7% · won 66% · −7.1±11.1 vs own baseline
  2. Body serve (deuce court) → FH down the line used 6.7% · won 56% · −17.1±11.5 vs own baseline

Return

  1. Not enough data

Rally, consecutive own shots

  1. FH crosscourt → FH crosscourt used 20.4% · won 59% · +6.6±10.4 vs own baseline
  2. BH crosscourt → BH crosscourt used 15.5% · won 51% · −0.9±11.5 vs own baseline

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

FH to their forehand · rally+3.2132
FH to their backhand · rally−1.2134

Most exposed to

Wide 1st serve · ad court−1.7136
FH to their forehand · rally−0.4130
T 1st serve · deuce court−0.3128
Wide 1st serve · deuce court−0.1128
FH to their backhand · rally±0.0147

Active players who are best at the shot in the top weakness: Giovanni Mpetshi Perricard, Reilly Opelka, Nicolas Jarry, Nick Kyrgios, Maxime Cressy

Charted matches