(CNN) -- Hamburg are up to third place in the tightest Bundesliga title race in years, after a 2-0 home victory over Arminia Bielefeld on Sunday.
Hamburg celebrate Piotr Trochowski's opening goal in their 2-0 victory over Arminia Bielefeld.
Germany winger Piotr Trochowski opened the scoring with a free-kick and Peruvian forward Jose Guerrero sealed the win for Martin Jol's side, who move above Bayern Munich following the defending champions' 2-1 defeat at new leaders Hertha Berlin on Saturday.
Bielefeld had the chance to equalize in the 55th minute, but Poland striker Artur Wichniarek's penalty was saved by goalkeeper Frank Rost, diving to his right.
With just four points separating the top five, it is the closest the title race has been since 1995.
Hertha are on 40 points, one clear of former leaders Hoffenheim -- who were thrashed 4-1 at home by Leverkusen on Friday -- and Hamburg. Bayern Munich are a further point behind, with Leverkusen four off the top in fifth position.