Robinson took the floor after Rondo was held out of the contest due to a tight hamstring, and he responded with a big game, going 8-of-12 from the field, grabbing six rebounds and handing out six assists for the Celtics, who won their seventh straight game.
Marquis Daniels hit a pair of free throws with 7 minutes left in the first half to put Boston up 34-27 and his subsequent lay-in off a Nets turnover ignited an 18-4 run, capped by Garnett's 4-foot jumper with 1:06 left.
Garnett contributed 13 points and 14 rebounds and Glen Davis chipped in 16 points and nine boards in a reserve role for the victors.
New Jersey was led by Jordan Farmar with 16 points.
Derrick Favors and Anthony Morrow donated 10 apiece for the Nets.
Swim Week Miami Beach 2014 [PHOTOS]