Quad-Core technology ensures 6% more ball speed and greater stability December 11, 2015 04:40

Test Procedure

  • The rackets were used by the same players, under the same conditions.
  • The rackets were strung with the same polyester string at 50 pounds.
  • The frames compared have the same shape and dimensions (Formula vs. Pure Drive), weighing 300 grams and with a 100-inch stringbed, 16/19 string pattern.
  • The traditional hollow-core racket has high stiffness RA 70, the Donnay Quad-Core has medium-low stiffness RA 60.
  • The test was conducted by measuring a series of 30 shots executed during matches.

Test Results

  • The average shot speed of the traditional (hollow) racket was 142 km/h, the average shot speed of the Donnay Quad-Core was 150 km/h.
  • The athletes' sensation was that the rackets with Quad-Core technology offered significantly superior stability.

Test Conclusion

Quad-Core rackets provide greater control and 6% more ball speed on shots, which translates, for example, to 10 miles per hour more on serve. The Quad-Core racket is found to be much more comfortable and stable.

Hollow Core (Pure Drive)

Tecnologia Xene Core - Racchette da tennis 

Quad-Core (Formula)

Tecnologia Xene Core - Racchette da tennis