Jarrod Jones scored 31 points for the 26th-seeded Heat (2-2). Derrick Walton Jr. had 15 points and 11 assists, and Duncan Robinson and Daryl Macon each scored 11 points.
Macon made the go-ahead 3-pointer with 1:33 to play. Miami advanced to play No. 10 Boston.
Cheick Diallo finished with 28 points and 13 rebounds for the No. 7 Pelicans. They'll play the Knicks Friday.
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