Cologne - There's no prizes for guessing the leader of the Bundesliga after seven matches, but the race for European spots has already thrown up a fair few surprises.

In the third and final part of our form check series, bundesliga.com puts the top six under the microscope...

It hasn't been all plain sailing for FC Bayern this season, with two wins and two draws in their first four games possibly being viewed as slightly disappointing by their near-impeccable standards. Nevertheless, they have won all three matches since drawing 0-0 away to Hamburg on Matchday 4 and enjoy a four-point lead at the top. With a handful of stars still to return from injury, they will be feeling confident about their chances of retaining the title.

It's been a very satisfying few months for Markus Gisdol's Hoffenheim. Last term they boasted the second-leakiest back line in the Bundesliga; this season they appear to have addressed their defensive problems and remain unbeaten, with a 2-1 win over Schalke on Matchday 7 lifting them to the heady heights of second, thanks in no small part to the form of new goalkeeper Oliver Baumann and four-goal hero Tarik Elyounoussi.

Building on an impressive 6th-placed finish in 2013/14, Borussia have made it through seven matchdays with their unbeaten record intact and now occupy the third automatic UEFA Champions League qualifying spot. Their good form has been built on a miserly defence: just four goals against so far, with Yann Sommer impressing between the sticks. Despite missing the first two matches of season, has also caught the eye and has found the net three times already.

Bayer Leverkusen have started well enough, despite their niggling inconsistencies. A 2-0 win away to Borussia Dortmund on the opening day pointed to a team ready to challenge at the top, but a 4-1 reverse against VfL Wolfsburg and a 2-2 home draw against SC Paderborn 07 will have frustrated new head coach Roger Schmidt. Striker Karim Bellarabi has hit the ground running and has deservedly earned a call-up to the . He could play a key role for the Werkself this season.

After flirting with relegation for a spell last season, Eintracht's fans will be delighted to see their team sitting in a European spot going into the second international break. New boss Thomas Schaaf has got his side firing - Alexander Meier already has four goals from midfield - and after a slightly up-and-down start they are unbeaten in their , taking maximum points from their last two games.

It's not been a bad start for Mainz by any stretch of the imagination. Kasper Hjulmand, who took over from Thomas Tuchel as head coach in July, has led his side to a very respectable sixth-spot and in Shinji Okazaki they boast the league's top scorer. Although they are yet to taste a loss, Hjulmand will want to start converting some of Mainz's draws (five so far) into wins and hope a few more players start chipping in with goals to avoid an over-reliance on Okazaki.