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Speed Regime 3

  - Callaway
The Speed Regime line of golf balls debuted in January of 2014.

The SR3 is designed specifically for golfers with ball-speeds of over 105 m.p.h, while a special variation of Callaway's HEX Aero profile helps reduce drag in the first stages of ball flight. Of the three Speed Regime balls, the SR3 has the firmest urethane cover.