Tatum scored 44 points on 16-of-25 shooting (5-of-9 from three-point range), and Curry posted 30-plus points for the 10th straight game after scoring 47 on 15-of-27 shooting (11-of-19 from three-point range). The Warriors floor general also hit 10 or more three-pointers for the third time in four games.
The two teams found themselves tied at 111 after a Kevon Looney putback layup, but the Celtics took a 113-111 lead with 48.8 seconds remaining following a Tatum finger roll.
After Dubs forward Draymond Green missed a layup on the other end, C's point guard Kemba Walker drilled a three from the top of the key to provide Boston with a five-point edge.
Undeterred, Curry drilled a deep corner three to cut the Boston lead to two. Forced to foul, Golden State put Tatum on the line, and the fourth-year pro nailed both shots for the four-point advantage.
Curry then tried to hit a quick three-pointer from inside half court in response, but the shot was no good. A Walker free throw and a missed three from Warriors guard Jordan Poole ended the thriller.
The 31-26 Celtics moved into fourth place in the Eastern Conference despite missing All-Star guard Jaylen Brown (non-COVID illness).
The 28-29 Warriors, who had won four straight entering the evening, fell below .500 but still sit ninth in the Western Conference.
Warriors PG Stephen Curry: 47 points, 7 rebounds
Warriors G Kent Bazemore: 16 points, 4 rebounds
Warriors F Draymond Green: 5 points, 10 assists, 5 rebounds
Celtics F Jayson Tatum: 44 points, 10 rebounds, 2 steals
Celtics G Kemba Walker: 26 points, 8 rebounds, 2 steals
Celtics G Marcus Smart: 16 points, 9 rebounds, 6 assists, 2 steals
Tatum Guides C's To 6th Straight Win
The Celtics entered this season with high expectations after reaching the 2020 Eastern Conference Finals, but they struggled through their first 51 games, going just 25-26.
Boston has never been in danger of missing postseason play entirely, but the Celtics looked like anything but a title contender in an Eastern Conference dominated by the Brooklyn Nets, Philadelphia 76ers and Milwaukee Bucks this year.
The Celtics have finally woken up, though, thanks largely to Tatum, who has now averaged 31 points per game during Boston's current six-game win streak.
Tatum had to put the Celtics offense on his back with Walker by his side given Brown's absence. Facing the scorching-hot Curry and the Warriors was no easy task, and the Celtics fell behind early and often.
But Tatum kept Boston in this game and came through when this team needed him the most. He even did something he had only done once before in his career (which just so happened to be on April 9):
Outside of his late-game heroics, Tatum delivered enough to keep Boston in the game, including nailing this buzzer-beating baseline jumper:
He also rewarded Marcus Smart's excellent defense by finishing off a dunk on the fast break in the third:
Tatum scored in every which way, absorbing contact to finish off numerous buckets:
In the end, Tatum did what he needed to do to keep the Celtics rolling as the regular season nears its end. It remains to be seen if Boston can compete with this year's Eastern Conference heavyweights, but the arrow is pointing up in Boston thanks in part to Tatum, who is dominating the league right now.
Curry Plays the Part of Showstopper Once Again
It's difficult to describe how incredible Curry has played of late as he tries to will the Warriors into the playoffs. He's simply been sensational, to the point where painting a picture through highlights and mind-bending stats may be best to showcase how great he has been recently, capped by Saturday's effort.
This image from Rob Perez of FanDuel is a good start:
Curry has notably shot over 50 percent from three-point range each time he's notched 10 or more three-pointers this season.
Per ESPN Stats & Info, Curry joined a list that includes only Michael Jordan and Kobe Bryant:
He also joined a now-two-man group with himself and Wilt Chamberlain:
For good measure, he and Bryant stand alone on another list as well:
Curry is now averaging 39.1 points per game in his last 10 contests. He's scored 40 or more points four times during that stretch, including a season-high 53.
The point guard also dazzled along the way, dominating in all four quarters:
Curry and the Warriors may have lost, but the point guard continued to be one of the greatest entertainers in sports as he put on a show in Boston.
Both teams will play on Monday at 7:30 p.m. ET.
Boston will host the Chicago Bulls. Golden State will continue its four-game Eastern Conference road trip with a matchup against the Philadelphia 76ers in Wells Fargo Center.