RallyIQ

ATP · Right-handed · 3 charted matches · 2024–2025

Coleman Wong

Shot expected value

The share of points Coleman Wong 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 · 46 shots

OptionUsedWin %Tour
BH crosscourt 43% 41.3%±12.8 47.6%
FH inside-out 30% 54.0%±14.1 51.8%
BH through the middle 26% 43.0%±14.4 43.7%

Serve under pressure

Deuce court

1st serveUsageBreak ptWon when in
Wide 46% 40% 73% / 73%
Body 12% 0% ▼ 65% / 63%
T 42% 60% ▲ 80% / 75%

119 normal · 5 break-point 1st serves

Ad court

1st serveUsageBreak ptWon when in
Wide 46% 67% ▲ 76% / 73%
Body 15% 7% ▼ 67% / 63%
T 40% 27% ▼ 70% / 72%

101 normal · 15 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 won
Wide46% 64.3%±8.4 n=57
Body11% 69.9%±11.4 n=14
T43% 78.5%±7.4 n=53

Off equilibrium (p = 0.037): serve T more. Gap 7.5 points per 100 first serves.

Ad court

1st serveUsagePoints won
Wide48% 64.1%±8.5 n=56
Body14% 65.4%±11.5 n=16
T38% 57.7%±9.4 n=44

Consistent with an optimal mix (p = 0.38).

Repeating the previous direction to the same court: +2.7±6.9 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. (104 repeats, 130 switches.)

Return by serve direction

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

ServeCourtDirectionPointsWonvs tour
1stAd courtBody 8 37% +0.1±12.9
1stAd courtT 28 25% −3.2±9.3
1stAd courtWide 30 24% −3.6±9.0
1stDeuce courtBody 16 33% −4.1±11.4
1stDeuce courtT 30 24% −0.9±9.1
1stDeuce courtWide 32 24% −2.7±9.0
2ndAd courtBody 20 48% −1.8±11.6
2ndAd courtT 7 48% −1.2±13.5
2ndAd courtWide 5 44% −4.1±13.8
2ndDeuce courtBody 19 52% +3.4±11.7
2ndDeuce courtT 7 48% −1.3±13.5
2ndDeuce courtWide 7 44% −3.7±13.4

Charted matches