Paddle Comparison Lab

KewCOR Paddle Surface Map×

The KewCOR Curve maps paddle power along the centerline of the face, typically from 3–6 inches below the tip. It shows how consistently the paddle returns energy across the hitting surface.

A flat, smooth curve indicates a more uniform response and a longer sweet spot, while a steep curve suggests a concentrated hot spot with a sharper drop-off in power away from the optimal contact zone.

Higher values indicate greater energy return at that location on the paddle face.

Speed Gauges×

Firepower is an overall 0–100 shot-power rating: Low 0–33, Medium 34–66, High 67–100.

KewCOR measures power at the paddle's sweet spot on a 0.340–0.470 scale: Control 0.340–0.369, All-Court 0.370–0.399, Power 0.400–0.446, Beyond Spec 0.447–0.470.

Scores outside 0.340–0.470 are shown bottoming out or topping out at the nearest edge of the gauge.

Firepower×

Recorded with a radar gun on human-generated serves and punch volleys. Value represents scaled Z-score.

KewCOR×

Controlled laboratory data capturing efficiency of paddle-ball collision using a ball cannon and clamped paddle.

Spin Durability Tier×

Spin durability tiers are based on an accelerated wear test that measures how well a paddle maintains spin over time. Initial spin is measured using a ball cannon (60 MPH, paddle clamped at 30°), followed by 100 impacts at 70 MPH to simulate wear. Spin is then re-measured under identical conditions.

• Tier 1: <5% spin loss (Elite)
• Tier 2: 5–9.9% spin loss
• Tier 3: 10–19.9% spin loss
• Tier 4: ≥20% spin loss

This accelerated laboratory test is designed to compare surface durability under controlled conditions. Actual on-court wear will vary based on play style, conditions, and maintenance.

All Tier 1–Tier 3 ratings are confirmed through accelerated wear testing. Tier 4 also includes untested traditional raw carbon fiber and spray-grit paddles, as every tested example of these surface types has exhibited approximately 20% or more spin loss.