The Warriors scored 37 points in the first quarter and never trailed on the way to their eighth straight victory and 60th this season.
Golden State led by eight after a pair of free throws by Curry with just over three minutes left. Patrick Beverley countered with a tip-in layup for Houston, then was fouled when he was knocked to the ground on a screen by Draymond Green seconds later.
James Harden missed a layup on the next possession before Green added a shot on the other end to put the Warriors up 107-99.
Another layup miss by Harden followed, and Curry made a 3-pointer with 1:46 left to send fans streaming to the exits.
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