The Golden State Warriors slipped to a 113-95 against the Detroit Pistons to miss out on an NBA record mark at the halfway point of the season.
Stephen Curry scored 38 points for the Warriors, but the rest of his team-mates had an off night while six Pistons players scored in double figures, led by Kentavious Caldwell-Pope and Reggie Jackson.
The Warriors have won 37 of their first 41 games, and victory would have seen them tie the 1971-72 Los Angeles Lakers and 1995-96 Chicago Bulls for the best halfway regular season record.
The Pistons retired the jersey of Ben Wallace during half-time and there was a noisy atmosphere at the Palace in Auburn Hills all night, which clearly gave the home side a boost.
They were already 65-49 in front by the time Wallace's ceremony got underway, and although Curry scored 16 points in the third quarter to cut the deficit by five, the Pistons pulled away again in the final 12 minutes.
Caldwell-Pope and Jackson both scored 20 points, while Marcus Morris scored 16 to go with eight rebounds and six assists in a superb all-round performance and Andre Drummond pulled down 21 rebounds.
Curry and Klay Thompson combined for 62 points for Golden State, but the rest of their team was barely able to hit a field goal as the Warriors shot a paltry 36.2 per cent on the night.
"I think we know that we're capable of beating anybody," Pistons coach Stan van Gundy said after his side improved their record to 22-18.
"The difference between the Golden States, San Antonios, Clevelands of the world and where we are right now, is you've got to do it night after night after night after night after night, and that's our challenge."