Ruud van Nistelrooy scored twice to give Hamburg a winning start to this season's Bundesliga campaign with a 2-1 victory over Schalke 04 on Saturday.
Hamburg joined five other teams on three points after the opening round.
In other matches, Hoffenheim rallied to beat Werder Bremen 4-1 and promoted teams St. Pauli and Kaiserslautern also came from behind to win on the road.
St. Pauli scored three times in the last 10 minutes to win 3-1 in Freiburg, and Kaiserslautern won by the same score at 10-man Cologne.
Hannover edged Eintracht Frankfurt 2-1. Defending champion Bayern beat Wolfsburg 2-1 on Friday.