The Golden State are undefeated no longer after going down to the Milwaukee Bucks 108-95.
The defeat ended a 24 game winning streak, the longest winning streak to start an NBA season.
The Warriors were 10 wins away from breaking the all time NBA winning streak of 33 consecutive victories.
The Bucks led from start to finish, outscoring the Warriors 29-20 in the second quarter and 28-18 in the fourth quarter.
Steph Curry finished with 28 points, seven rebounds and five assists, while Draymond Green finished with 24 points.
Giannis Antetokounmpo finished with a triple-double (11 points, 10 assists and 12 rebounds) for the Bucks, while Greg Monroe top scored for the Bucks with 28 points.