The Bucks (43-34) clinched a playoff berth earlier Saturday when New York beat Atlanta, then moved past Detroit — which lost to Memphis — into the No. 5 spot in the Eastern Conference.
Antetokounmpo's 2nd straight triple-double lifts Bucks over Heat
At a glance
MIAMI (AP) — Giannis Antetokounmpo had 36 points, 15 rebounds and 10 assists, Kevin Porter Jr. had 24 points off the bench and the Milwaukee Bucks beat the Miami Heat 121-115 in overtime Saturday night, April 5.
Porter had 12 rebounds, eight assists and a layup with 11 seconds left in overtime for a 119-115 lead.

Bam Adebayo had 31 points, 12 rebounds and five assists for Miami, which got a season-high 24 from Alec Burks and 20 from Davion Mitchell.
The Bucks (43-34) clinched a playoff berth earlier Saturday when New York beat Atlanta, then moved past Detroit — which lost to Memphis — into the No. 5 spot in the Eastern Conference.
Miami (35-43) fell a half-game behind Chicago in the race for No. 9 in the East. The Heat are 1 1/2 games behind No. 8 Atlanta and three games behind No. 7 Orlando.
The Heat played without Tyler Herro (right thigh), Andrew Wiggins (right hamstring) and Kevin Love (personal reasons).
Ivica Zubac was 11 for 11 from the floor for 25 points, Kawhi Leonard and James Harden scored 29 each and the Los Angeles Clippers blew out the Dallas Mavericks 135-104.
Zubac also had 10 rebounds and is the first player in NBA history to have 25 points and 10 rebounds without any turnovers or misses. His perfect shooting night is a franchise record for most makes without a miss in a single game.
The Clippers have won four in a row and six of their last seven games.
Anthony Davis had 27 points and Kai Jones added 18 on 9-for-9 shooting to lead the Mavericks.
Davis grabbed his left knee in the first half and his stomach multiple times in the second though he continued to play. Davis missed time with an abdominal injury after being acquired in a trade with the Los Angeles Lakers.
Elsewhere, Anthony Edwards scored 37 points, Rudy Gobert added 23 points and 19 rebounds and the Minnesota Timberwolves extended their winning streak to five games with a 114-109 victory over the Philadelphia 76ers.
Julius Randle chipped in 15 points and Donte DiVincenzo 13 for the Timberwolves, who won for the sixth time in seven games.
Quentin Grimes led Philadelphia with 28 points on 10-for-18 shooting, including 6 for 10 from long distance. Guerschon Yabusele scored 19 points, Lonnie Walker IV had 18 and Jared Butler 16 as the Sixers lost their 11th straight game and for the 14th time in 15 games. Philadelphia last won on March 16, at Dallas.
After Philadelphia rallied to within 111-109 with just under 15 seconds remaining, Edward fought off a double-team, rising up to hit a 3-pointer at the shot-clock buzzer, making it 114-109. Yabusele missed a 3-pointer with 5 seconds left and Edwards grabbed the rebound, sealing the win.