bundesliga.com has some number-related fun to collate the most important stats ahead of this weekend's round of matches.
The Olympiastadion is the setting for this clash between Hertha and Stuttgart and the Berliners' home ground has been a fortress since Dutchman Jos Luhukay (pictured) took over - the club haven't lost any of his 19 home games. Stuttgart, however, come into the game buoyed by their first Bundesliga win this season on Matchday 4 - and new coach Thomas Schneider celebrated not only the side's 6-2 victory over 1899 Hoffenheim, but also the highest debut win for a Stuttgart coach.
Not only are Bayern unbeaten this season, they're unbeaten in their last 29 Bundesliga games, and are chasing a Bundesliga record of 36. The signs are good for the Bavarians too, Guardiola's philosophy is starting to take effect: the club are averaging 688 passes per game, 114 more than last term. If Hannover do manage to get the ball off the reigning champions, they'll aim to maintain the best Bundesliga start in their history, with coach Mirko Slomka looking to pick up his first ever victory in the Allianz.
This game is all about the goalscorers - and goalscorers with a connection to the Coface Arena. Mainz's impressive start to the season has been fired by Nicolai Müller's (pictured) five goals, while Schalke's Adam Szalai has scored four of his club's twelve goals so far. The Hungarian, who'll face his former club for the first time this weekend, was Mainz's top scorer last season, with 13 goals, a figure Müller looks certain to overcome if he maintains his club-record goal-scoring start.
Were Hamburg to win again, after last season's double success, it would be a bit of a sensation, because only once under Jürgen Klopp (pictured) have Borussia lost three consecutive games to the same opposition. The Red Shorts will have to halt Dortmund's flying start after this BVB side became one of only fifteen clubs in history to have won their first four games. One thing guaranteed is goals: this fixture has provided 329 goals in 92 games - the most in Bundesliga history, and there's never been a 0-0 in Dortmund.
More goals are guaranteed in the Rhein-Neckar Arena - although less because of historical precedents and more because of this season's performances. With 12 goals against, Hoffenheim have conceded the most this season. Gladbach's fearsome attacking quartet have helped the Foals to score ten goals already this season - second only to Hoffenheim, who have hit the net on twelve occasions. In total, the eight matches involving these two sides this season have seen 42 goals - over five per game.
Neither of these two sides has a win yet this season, and they sit next to each other on the bottom two rungs of the Bundesliga ladder. Unfortunately for Braunschweig, they have undergone the worst start to a season in Bundesliga history - it is the third time a side has lost their opening four games, but never have they had such a bad goal difference. It's also a historically bad start for Der Club, as not since 1963 have they failed to pick up a victory in their first five competitive games.