Borussia Dortmund set a new club record as a 6-2 victory over Hamburg gave them a fifth straight win of the Bundesliga campaign.
Jurgen Klopp's side had never had more than 12 points after five league fixtures but they ruthlessly picked Hamburg apart with four goals in 16 second-half minutes.
Dortmund raced into a 2-0 lead through Pierre-Emerick Aubameyang and Henrikh Mkhitaryan but the visitors pegged them back.
Zhi Gin Lam pulled a goal back four minutes after Mkhitaryan's strike with Heiko Westermann levelling in the 49th minute.
But that only served to spark Dortmund into life as Aubameyang added his second, before Robert Lewandowski struck twice – either side of Marco Reus' second goal of the season.
Earlier on Saturday, defending champions Bayern Munich maintained their unbeaten start with a 2-0 win over Hannover.
Pep Guardiola's side sit two points behind Dortmund thanks to goals from Mario Mandzukic and Franck Ribery that secured their win.
A Stefan Kiessling double and an early Sidney Sam strike saw Bayer Leverkusen continue their good start to the season with a 3-1 victory over Wolfsburg, who had Luiz Gustavo sent off late on.
Ivica Olic had equalised for the visitors in the 39th minute but they struggled to contain a rampant Leverkusen side in the second half.
Mainz fell to their first home defeat of the season as Schalke took all three points at the Coface Arena.
Kevin-Prince Boateng scored his first goal for Schalke in the 34th minute to seal the win and lift his side into the top half of the table.
Vaclav Kadlec continued his good start at Eintracht Frankfurt as he struck twice in their 3-0 victory over Werder Bremen at the Weserstadion.
The former Sparta Prague striker scored two first-half goals before a Sebastian Prodl own goal compounded the misery of Werder, who had seen Franco Di Santo sent off.
The result sent Robin Dutt's men to their third consecutive defeat in the league.
Freiburg continue to search for their first win of the season as they fell to a 2-1 defeat to Augsburg.
After a goalless first half, Freiburg opened the scoring in the first minute of the second period before Halil Altintop equalised for the hosts.
Tobias Werner won the game for Augsburg in the closing minutes, the midfielder firing past Oliver Baumann after a neat ball from Jan Moravek.
1 - 0
2 - 0
2 - 1
26' Z. Lam
2 - 2
3 - 2
4 - 2
M. Reus 74'
5 - 2
6 - 2
|17||P. Aubameyang||19' 65'|
|9||R. Lewandowski||73' 81'|
|Coach: J. Klopp|
for N. Subotić 63'
for H. Mkhitaryan 79'
for M. Schmelzer 79'
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