Bo Horvat scored the go-ahead goal early in the third period and the New York Islanders won their fourth straight game, 4-2 over the St. Louis Blues on Tuesday night.

Kyle Palmieri, Jean-Gabriel Pageau and Mathew Barzal also scored for the Islanders who moved within four points of the Philadelphia Flyers for the third spot in the Metropolitan Division, which would guarantee them a spot in the playoffs.

Ilya Sorokin finished with 19 saves and improved to 5-1 since the 6-5 overtime loss to the Rangers in the Stadium Series game at MetLife Stadium on Feb. 18.

Horvat broke a 2-2 tie with an incredible individual effort as he moved around Blues defenseman Nick Leddy, corralled his own rebound and buried a wraparound to give the Islanders a 3-2 lead 55 seconds into the third period.

Barzal added an empty-net goal in the final minute.

Alexey Toropchenko and Jordan Kyrou scored for the Blues, who had won their last two games. Rookie goaltender Joel Hofer made 29 saves.

Toropchenko fired a wrist shot past Sorokin for his 11th goal of the season at 1:21 of the second period to open the scoring.

St. Louis doubled its advantage when Brandon Saad stole a puck from Horvat and slid it over to Kyrou for an easy tap-in.

The Blues visit the New Jersey Devils on Thursday night.