The NBA said the performance set a Suns record for a home opener, passing the 37 points Charles Barkley scored against the Los Angeles Clippers on Nov. 7, 1992. Booker scored 24 of his points after halftime, 17 of them in the third quarter.
Golden State was playing for the third time in four days and rested several regulars. Stephen Curry (right knee), Brandin Podziemski (low back), Draymond Green (low back) and Al Horford (low back) all sat, the AP said. The Warriors are 0-3 for the first time in 19 years.
Phoenix started cold, making 1 of 12 from 3-point range in the first quarter, and trailed 25-22 after one. The Suns scored 35 in the second and 45 in the third, and Jordan Goodwin's 3-pointer at the buzzer sent them into the fourth up 102-92.
The Warriors stayed close for a few more minutes before Phoenix pulled away, building a lead that reached 16 per ESPN's box score. The NBA highlighted a sequence in which Collin Gillespie stole the ball, slipped it between a defender's legs and found Kennard for a transition 3. A Kennard 3-pointer made it 117-102 with six minutes left. Kennard, signed in the offseason, finished with 11 points and made 3 of 5 from deep.