RallyIQ

WTA · Right-handed · 4 charted matches · 2022–2026

Tamara Korpatsch

Shot expected value

The share of points Tamara Korpatsch 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 middle

position worth 50% to the average player · 92 shots

OptionUsedWin %Tour
FH through the middle 24% 40.8%±12.5 45.8%
FH down the line 22% 53.6%±13.0 52.2%
FH crosscourt 21% 55.2%±13.1 52.7%
BH crosscourt 14% 46.0%±14.3 50.9%
BH through the middle 12% 45.9%±14.7 46.2%

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

position worth 45% to the average player · 77 shots

OptionUsedWin %Tour
BH crosscourt 45% 50.0%±11.1 47.6%
BH through the middle 36% 53.5%±11.8 43.3%

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

position worth 43% to the average player · 65 shots

OptionUsedWin %Tour
FH crosscourt 40% 37.7%±11.8 46.7%
FH through the middle 31% 38.2%±12.6 41.3%
FH down the line 29% 51.2%±13.2 44.9%

Serve under pressure

Deuce court

1st serveUsageBreak ptWon when in
Wide 48% 80% ▲ 66% / 66%
Body 25% 0% ▼ 60% / 57%
T 27% 20% 73% / 68%

135 normal · 10 break-point 1st serves

Ad court

1st serveUsageBreak ptWon when in
Wide 55% 20% ▼ 66% / 66%
Body 26% 28% 57% / 56%
T 19% 52% ▲ 69% / 64%

112 normal · 25 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. A direction loses 0.19 points per 100 serves for every 10 points of habitual usage, measured from WTA 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
Wide50% 49.5%±8.1 n=73
Body23% 49.9%±10.3 n=34
T26% 52.1%±10.0 n=38

Consistent with an optimal mix (p = 0.90).

Ad court

1st serveUsagePoints won
Wide49% 57.2%±8.3 n=67
Body26% 56.7%±10.0 n=36
T25% 51.6%±10.3 n=34

Consistent with an optimal mix (p = 0.61).

Repeating the previous direction to the same court: −0.4±4.7 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. (119 repeats, 155 switches.)

Return by serve direction

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

ServeCourtDirectionPointsWonvs tour
1stAd courtBody 14 44% −0.3±12.3
1stAd courtT 27 31% −4.5±10.1
1stAd courtWide 37 32% −2.6±9.4
1stDeuce courtBody 9 46% +3.0±13.1
1stDeuce courtT 26 24% −7.8±9.4
1stDeuce courtWide 50 27% −7.5±8.1
2ndAd courtBody 24 42% −13.4±11.0
2ndAd courtT 7 55% +0.4±13.4
2ndAd courtWide 11 51% −2.2±12.8
2ndDeuce courtBody 17 52% −2.7±12.0
2ndDeuce courtT 11 48% −7.7±12.8
2ndDeuce courtWide 23 51% −2.6±11.3

Discovered sequences

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

  1. BH crosscourt → BH crosscourt → BH crosscourt used 2.3% · won 52% · +8.8±13.1 vs own baseline · +18.0 vs tour on the same sequence Disrupted by Emma Raducanu (2/6)

Charted matches