A four-state deuce-versus-ad court split — one server's metrics mirrored around the centre mark, every row drawn as a rate of its own side's whole so two different sample sizes compare fairly, mixes apportioned by largest remainder, and the wide gaps flagged toward the better half.
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metrics with a better direction; 1 to the ad court
16
percentage points · widest split
Return depth · Deep — ad 42%, deuce 26%
Ad court55% — 30 points of 55
Deuce court68% — 43 points of 63
13 percentage points to the deuce court · higher is better · flagged
Service points won from this half of the court.
Ad court62%
Deuce court59%
3 percentage points to the ad court · higher is better
First serves that landed in, as a share of the points served from this half.
Ad court2% — 1 ace of 55
Deuce court11% — 7 aces of 63
9 percentage points to the deuce court · higher is better
Serves the returner never touched.
Ad court11% — 6 double faults of 55
Deuce court2% — 1 double fault of 63
9 percentage points to the deuce court · lower is better
Two serves missed — the point handed over. The ad court is where break points are played.
Serve placement · shares of the serves that landed in — ad 49, deuce 62
100%100%
Ad court47% — 23 serves of 49
Deuce court37% — 23 serves of 62
10 percentage points apart · no better direction
Out wide, pulling the returner off the court.
Ad court18% — 9 serves of 49
Deuce court18% — 11 serves of 62
Level — both halves print the same rate.
Straight at the returner, jamming the swing.
Ad court35% — 17 serves of 49
Deuce court45% — 28 serves of 62
10 percentage points apart · no better direction
Along the centre service line, over the lowest part of the net.
Return depth · shares of the returns put in play — ad 36, deuce 42
100%100%
Ad court22% — 8 returns of 36
Deuce court33% — 14 returns of 42
11 percentage points to the deuce court · higher is better · flagged
Inside the service line, under 6.40 m from the net — the ball the server steps in on.
Ad court36% — 13 returns of 36
Deuce court41% — 17 returns of 42
5 percentage points apart · no better direction
6.40 to 9.14 m from the net: past the service box, still short of the baseline.
Ad court42% — 15 returns of 36
Deuce court26% — 11 returns of 42
16 percentage points to the deuce court · lower is better · flagged
Beyond 9.14 m, inside the last 2.75 m of the 11.885 m half — the server is pushed back.
A flag marks the 5 of 10 comparable metrics whose two rates differ by 10 percentage points or more: → and ← point at the better side, ↔ means the metric has no better direction.
One scale, three ways to reach it: a metric sent as a percent is drawn as it stands, a count is divided by the points that side actually played, and a mix member is apportioned against its mix's total by largest remainder, so each half is filled by shares that add to exactly 100. Raw counts are never compared, because the deuce court starts every game and sees the larger sample — 63 points here against 55. A row's printed rate is the number that sizes its bar and decides its gap, so a flag always marks a length difference you can measure on screen. Select a row for the counts behind the rate.
Deuce / ad split: M. Ferreira, serve · quarter-final · hard court. Seen from behind the server, the ad court is their left and the deuce court their right; 55 points were played from the ad court and 63 from the deuce court. Every one of the 10 metrics is drawn as a rate of its own side's whole, so the two halves compare fairly despite the different sample sizes. 5 of the 6 directional metrics favour the deuce court. The widest split is Return depth · Deep, 16 percentage points: ad 42% against deuce 26%. A flag marks the 5 of 10 comparable metrics whose two rates differ by 10 percentage points or more: → and ← point at the better side, ↔ means the metric has no better direction.
Every metric of the split, as a rate of each side's own whole, with the gap in percentage points.
Metric
Ad court
Deuce court
Gap
Read
Points won
55% — 30 points of 55
68% — 43 points of 63
13 percentage points
13 percentage points to the deuce court · higher is better · flagged
1st serves in
62%
59%
3 percentage points
3 percentage points to the ad court · higher is better
Aces
2% — 1 ace of 55
11% — 7 aces of 63
9 percentage points
9 percentage points to the deuce court · higher is better
Double faults
11% — 6 double faults of 55
2% — 1 double fault of 63
9 percentage points
9 percentage points to the deuce court · lower is better
Serve placement · Wide
47% — 23 serves of 49
37% — 23 serves of 62
10 percentage points
10 percentage points apart · no better direction
Serve placement · Body
18% — 9 serves of 49
18% — 11 serves of 62
0 percentage points
Level — both halves print the same rate.
Serve placement · Down the T
35% — 17 serves of 49
45% — 28 serves of 62
10 percentage points
10 percentage points apart · no better direction
Return depth · Short
22% — 8 returns of 36
33% — 14 returns of 42
11 percentage points
11 percentage points to the deuce court · higher is better · flagged
Return depth · Mid-court
36% — 13 returns of 36
41% — 17 returns of 42
5 percentage points
5 percentage points apart · no better direction
Return depth · Deep
42% — 15 returns of 36
26% — 11 returns of 42
16 percentage points
16 percentage points to the deuce court · lower is better · flagged
empty
Deuce / ad split
M. Ferreira · serve · quarter-final · hard court
No split yet
Each metric becomes a mirrored pair — the ad court growing left, the deuce court right — drawn as a rate of its own side's points so the two halves compare fairly.
Zyeon UI