Thompson tied a Mavericks record set by Luka Doncic three seasons ago with a vintage performance reminiscent of his prime with the Warriors.

"It reminds you that there’s greatness still within you," Thompson said after a blistering first quarter against the Wizards.

2015 — Klay Thompson sets an NBA record for the most points in a quarter, a 37-point third period that powers the Golden State Warriors to a 126-101 victory over the Sacramento Kings.

Klay Thompson of the Golden State Warriors scores 37 points in one quarter, the most in NBA history, in a 126-101 win over the Sacramento Kings. Thompson went off in the third quarter, going 13 ...

The Dallas Mavericks hosted the Washington Wizards on Monday night and got out to a dominating start, thanks to future Hall of Famer Klay Thompson. He scored 21 points in the first quarter ...

DALLAS — Klay Thompson scored 21 of his 23 points in the first quarter, matching a Dallas record by hitting seven 3-pointers in the period, and the Mavericks breezed past the NBA-worst ...

Mandatory Credit: Jerome Miron-Imagn Images / Jerome Miron-Imagn Images Klay Thompson outscored the Washington Wizards by himself in the first quarter, scoring 21 points on 7/10 shooting from ...

(AP Photo/Benjamin Fanjoy)(AP/Benjamin Fanjoy) DALLAS (AP) — Klay Thompson scored 21 of his 23 points in the first quarter, matching a Dallas record by hitting seven 3-pointers in the period ...