2018 NBA Finals Game 1. The Warriors defeated the Cavaliers 108–100 in overtime, taking Game 1 and the 1–0 series lead. The Cavaliers got off to a strong start, opening up a 29–15 lead before settling for a 10-point lead after the 1st quarter. In the 2nd quarter, the Warriors went on a big run and led 46–41. However, the Cavaliers went on a 10–2 run to close out the first half, capped off by a J. R. Smith three with .7 seconds left in the first half. The Cavaliers led 51–48 at halftime. The second half was a back and forth affair, with neither team able to gain separation. Late in the 4th, Timofey Mozgov hit two free throws to tie the game at 98. The Warriors ran a play forStephen Curry out of a timeout. Curry beat Kyrie Irving to the basket and went for a go-ahead layup, but Irving blocked the shot, and the Cavaliers called timeout after Smith secured the rebound. The Cavaliers had two chances to win in the final seconds of regulation. However, LeBron James' potential game winning jumper was off. Iman Shumpert got the offensive rebound and threw a shot at the buzzer, but he also missed, sending the game to overtime. In overtime, the Warriors dominated. They opened overtime on a 10–0 run to seize control. The Warriors had 7 made free throws in the extra session, with Barnes' three pointer being the Warriors' lone made basket. Cleveland's only score in the extra period was James' layup with 9.5 seconds left as the Cavaliers shot 1/12 and committed 3 turnovers in the game's final 5 minutes.
Only three Cavaliers players scored for the Cavaliers after halftime: James, Irving, and Mozgov. The trio combined for 83 of the Cavaliers' 100 points. James had a career NBA Finals high of 44 points while attempting a postseason career-high 38 shots, and Curry led Golden State with 26 points. The Warriors' bench outplayed the Cavaliers' bench, outscoring them 34–9, with all 9 Cavaliers bench points coming from Smith. Andre Iguodala led the Warriors bench in scoring with 15 points. Irving suffered a knee injury in overtime and was forced to leave the game early. The following day, he was diagnosed with a fractured left kneecap that would require surgery and was ruled out for the rest of the Finals, joining Kevin Love, who suffered a dislocated shoulder against the Celtics in the first round of the playoffs, and Anderson Varejao.