TORONTO — Kyle Lowry left the Raptors’ locker room late Thursday night wearing a contraption on his left hand that looked like an oven mitt. He is not 100 percent healthy at this late stage of the N.B.A. playoffs, and that does not make him unique among his peers. But he revealed this week that he cannot feel his left thumb during games.

The injury — a dislocation that he managed to aggravate at some point in the Raptors’ postseason run — affects his passing, but Lowry has learned to compensate. It is not his shooting hand, and there is too much at stake, anyway. He is not making excuses, not when he and the Raptors are in the N.B.A. finals for the first time.

Lowry, 32, had waited years for Thursday night. For the biggest stage of all. For the flashiest spotlight that the league can produce. It did not disappoint.

“It was everything that you wanted,” Lowry said.

In the Raptors’ 118-109 victory over the Golden State Warriors in the opening game of the series, Lowry did not produce the most majestic stat line of his life: 7 points, nine assists and six rebounds while shooting 2 of 9 from the field in 36 minutes. But the Raptors outscored the Warriors by 11 points when he was on the court, and he was a steadying force at point guard who picked his spots. It was a good night for Lowry’s performance, as the team’s new star, Kawhi Leonard, was only 5-for-14.