Too few rebounds, too many costly turnovers and maybe an element of fatigue almost cost the Warriors on Sunday night.
Klay Thompson made sure it didn't.
Thompson made a driving floater over Wes Matthews with 8.7 seconds remaining to give the Warriors a one-point lead and they went on to a 95-90 win over the Trail Blazers at Moda Center in Portland.
Stephen Curry dropped in four free throws in the final with 4.5 seconds left to secure the victory.
Thompson continued his torrid shooting, finishing with a game-high 29 points, 20 of which came in the first half.
After Thompson's 3-pointer with 2:46 gave the Warriors their last lead, 88-86, Portland pulled ahead behind back-to-back baskets from power forward LaMarcus Aldridge.
But the Warriors held Portland scoreless over the final two minutes, as Thompson and Curry sealed the win that gave the Warriors their first 3-0 start since 1994-95.
Three other Warriors scored in double figures, led by Stephen Curry's 17. Leandro Barbosa came off the bench for 13 and Andrew Bogut added 11.
The Warriors (3-0) committed 17 turnovers, off which the Blazers (1-2) scored 17 points. The Warriors scored seven points off 16 Portland giveaways.
The Warriors were dominated on the glass, 56-41.
None of it mattered, as the Curry-Thompson backcourt overcame it all.
STANDOUT PERFORMER: Thompson carried the Warriors early, with 15 first-quarter points and 20 in the first half.
He also took them home late, scoring three clutch baskets in the final three minutes, including a ferocious slam over Portland center Robin Lopez with 3:18 left.
TURNING POINT: Until the final 4.5 seconds, the teams were never more than three points apart during the fourth quarter. Thompson's basket over Matthews put the Warriors ahead for good.
ET CETERA: Kerr is the first Warriors coach with a 3-0 start in the team's 52 seasons on the West Coast. That spans 18 different coaches.
INJURY UPDATE: F David Lee (strained left hamstring) did not dress and has missed the first three games of the season.
WHAT'S NEXT: The Warriors returned to Oakland immediately after the game and next take the court Wednesday to Oracle Arena to face the Clippers.