Slazenger Challenge No. 1

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This racquet, the Slazenger Challenge No.1, is one of the finest examples of wood crafting you may ever see in a tennis racquet. This racquet uses soft rounded edges throughout the shaft and head. This contrasts with the Wilson approach that used sharper contours.

Margaret Court

Margaret Court

The thicker throat overlay transitions into the thin head hoop which I think lends to the maneuverability of this pretty heavy racquet.

  • Margaret Court AO, MBE, also known as Margaret Smith Court, is a retired World No. 1 professional tennis player and Christian minister from Australia. – Wikipedia
  • Born: July 16, 1942, Perth, Australia
  • Grand slams: 24
Racquet ModelSlazenger Challenge No. 1
Reference TensionNot Strung
StringNot Strung
Static Data
ASPS, FlexFour0
Racquet Flex, RDC28
Racquet Flex, FlexFour34
Weight, Gram359.8
Weight, Ounce12.69
Balance, mm323
Balance, Inch12.72
Length, cm68.6
Length, Inch27.01
Head Width8.15
Head Length10.75
Head Area, sq cm443.9
Head Area, sq in68.8
Number of Main Strings18
Number of Cross Strings20
Ratio Cross/Main0.682
Main String Grid6.25
Cross String Grid8.00
Average Cross String Spacing0.400
Average Main String Spacing0.347
Dynamic Data
Dynamic Tension, KP, ERTNot Strung
Dynamic Tension, Lbs/inNot Strung
First Moment, Nm0.893
Polar Moment324
Torsional Stability8
Swing Weight, Gram316
Swing Weight, Ounce11.15
Swing Weight Calculated375.4
Power, RDCNot Strung
Control, RDCNot Strung
Maneuverability, RDC
Not Strung
Power, Calculated614.9
Head Points6.61
Head Weight, Percent46.9
Center of Percussion19.4
Dwell Time, MsNot Strung
Effective StiffnessNot Strung
K, lb/inNot Strung
Recoil Weight139.63
Twist Weight183.87

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