RallyIQ

WTA · Right-handed · 4 charted matches · 2014–2017

Mirjana Lucic

Shot expected value

The share of points Mirjana Lucic 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 · 67 shots

OptionUsedWin %Tour
FH crosscourt 22% 47.3%±13.9 52.7%
BH through the middle 21% 41.9%±13.9 46.2%
BH crosscourt 19% 43.0%±14.2 50.9%
FH down the line 16% 53.1%±14.7 52.2%

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

position worth 45% to the average player · 54 shots

OptionUsedWin %Tour
BH crosscourt 52% 55.3%±11.8 47.6%
BH through the middle 33% 51.7%±13.3 43.3%

Return +1: drive to your middle

position worth 50% to the average player · 47 shots

OptionUsedWin %Tour
FH crosscourt 28% 52.9%±14.3 52.3%
FH down the line 23% 60.0%±14.5 53.0%

Serve under pressure

Deuce court

1st serveUsageBreak ptWon when in
Wide 50% 67% ▲ 71% / 66%
Body 8% 33% ▲ 53% / 57%
T 43% 0% ▼ 65% / 68%

115 normal · 6 break-point 1st serves

Ad court

1st serveUsageBreak ptWon when in
Wide 29% 33% 74% / 66%
Body 20% 11% ▼ 60% / 56%
T 51% 56% 58% / 64%

89 normal · 18 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% 64.6%±8.2 n=61
Body9% 54.3%±12.8 n=11
T41% 54.1%±9.2 n=49

Consistent with an optimal mix (p = 0.11).

Ad court

1st serveUsagePoints won
Wide30% 56.7%±10.4 n=32
Body19% 57.4%±11.5 n=20
T51% 48.4%±8.9 n=55

Consistent with an optimal mix (p = 0.27).

Return by serve direction

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

ServeCourtDirectionPointsWonvs tour
1stAd courtBody 22 41% −3.2±11.2
1stAd courtT 23 47% +11.0±11.3
1stAd courtWide 23 36% +2.0±10.9
1stDeuce courtBody 12 45% +2.1±12.6
1stDeuce courtT 40 31% −1.2±9.1
1stDeuce courtWide 31 33% −0.9±9.9
2ndAd courtBody 33 58% +2.9±10.2
2ndAd courtT 5 50% −5.0±13.9
2ndAd courtWide 17 47% −6.6±12.0
2ndDeuce courtBody 30 59% +4.4±10.4
2ndDeuce courtT 18 54% −2.3±11.8
2ndDeuce courtWide 3 55% +1.2±14.2

Charted matches