RallyIQ

WTA · Right-handed · 5 charted matches · 2019–2026

Emiliana Arango

Shot expected value

The share of points Emiliana Arango 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 45% to the average player · 122 shots

OptionUsedWin %Tour
BH through the middle 25% 36.6%±11.1 43.3%
BH crosscourt 18% 41.7%±12.5 47.6%
BH slice through the middle 17% 33.9%±12.2 34.4%
BH down the line 12% 38.1%±13.5 46.8%
BH slice crosscourt 10% 37.8%±14.1 40.4%

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

position worth 43% to the average player · 80 shots

OptionUsedWin %Tour
FH through the middle 35% 31.8%±11.1 41.3%
FH crosscourt 25% 48.4%±13.0 46.7%
FH slice through the middle 18% 29.0%±12.8 29.2%
FH down the line 13% 39.9%±14.7 44.9%

Rally, shots 5–8: drive to your middle

position worth 50% to the average player · 76 shots

OptionUsedWin %Tour
FH through the middle 30% 44.5%±12.5 45.8%
FH down the line 28% 40.1%±12.6 52.2%

Serve under pressure

Pressure predictability index +13 How much less varied Emiliana Arango's first-serve direction gets on break points. Positive means easier to read. Based on 56 break-point first serves.

Deuce court

1st serveUsageBreak ptWon when in
Wide 38% 64% ▲ 60% / 66%
Body 31% 29% 47% / 57%
T 31% 7% ▼ 64% / 68%

128 normal · 14 break-point 1st serves

Ad court

1st serveUsageBreak ptWon when in
Wide 46% 57% ▲ 54% / 66%
Body 23% 14% ▼ 47% / 56%
T 32% 29% 55% / 64%

92 normal · 42 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
Wide40% 43.5%±8.7 n=57
Body31% 39.3%±9.3 n=44
T29% 46.1%±9.7 n=41

Consistent with an optimal mix (p = 0.55).

Ad court

1st serveUsagePoints won
Wide49% 46.7%±8.4 n=66
Body20% 40.4%±10.7 n=27
T31% 50.4%±9.8 n=41

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 15 40% −3.5±12.0
1stAd courtT 30 36% +0.6±10.2
1stAd courtWide 51 35% +0.5±8.7
1stDeuce courtBody 27 43% +0.9±10.8
1stDeuce courtT 38 29% −3.3±9.0
1stDeuce courtWide 39 38% +4.0±9.6
2ndAd courtBody 17 56% +1.4±11.9
2ndAd courtT 5 59% +3.6±13.7
2ndAd courtWide 25 47% −6.2±11.1
2ndDeuce courtBody 26 47% −7.4±11.0
2ndDeuce courtT 15 55% −0.9±12.2
2ndDeuce courtWide 6 56% +2.1±13.6

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

Most exposed to

FH to their backhand · rally−0.9124

Active players who are best at the shot in the top weakness: Clara Burel, Victoria Jimenez Kasintseva, Sara Sorribes Tormo, Arianne Hartono, Angelique Kerber

Charted matches