RallyIQ

WTA · Right-handed · 3 charted matches · 2024–2026

Malene Helgo

Shot expected value

The share of points Malene Helgo 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 28% 55.2%±13.1 52.7%
FH through the middle 22% 49.0%±13.9 45.8%
FH down the line 22% 55.6%±13.8 52.2%
BH through the middle 19% 49.2%±14.3 46.2%

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

position worth 43% to the average player · 54 shots

OptionUsedWin %Tour
FH crosscourt 54% 33.4%±11.1 46.7%
FH through the middle 26% 42.0%±13.9 41.3%
FH down the line 20% 54.8%±14.7 44.9%

Serve under pressure

Deuce court

1st serveUsageBreak ptWon when in
Wide 42% 17% ▼ 62% / 66%
Body 28% 17% ▼ 54% / 57%
T 29% 67% ▲ 62% / 68%

113 normal · 6 break-point 1st serves

Ad court

1st serveUsageBreak ptWon when in
Wide 21% 50% ▲ 67% / 66%
Body 24% 17% 48% / 56%
T 55% 33% ▼ 68% / 64%

82 normal · 30 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
Wide41% 48.4%±9.2 n=49
Body28% 47.2%±10.3 n=33
T31% 53.2%±10.0 n=37

Consistent with an optimal mix (p = 0.59).

Ad court

1st serveUsagePoints won
Wide29% 54.4%±10.4 n=32
Body22% 49.6%±11.1 n=25
T49% 57.7%±8.8 n=55

Consistent with an optimal mix (p = 0.37).

Return by serve direction

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

ServeCourtDirectionPointsWonvs tour
1stAd courtBody 21 40% −4.3±11.3
1stAd courtT 25 30% −5.2±10.2
1stAd courtWide 21 26% −8.3±10.1
1stDeuce courtBody 14 40% −2.2±12.2
1stDeuce courtT 24 33% +0.5±10.5
1stDeuce courtWide 26 24% −10.4±9.3
2ndAd courtBody 9 58% +2.7±13.0
2ndAd courtT 8 54% −1.1±13.3
2ndAd courtWide 13 51% −2.2±12.5
2ndDeuce courtBody 13 47% −7.2±12.5
2ndDeuce courtT 18 52% −4.3±11.9
2ndDeuce courtWide 9 59% +5.5±12.9

Charted matches