Japan winger Shinji Kagawa's first-half strike was not enough to give Borussia Dortmund three points on Sunday as the defending German league champions were held to a 1-1 draw at home to Kaiserslautern.
Dortmund's single point means there is now a three-way tie at the top of the table and puts them level on 31 points with both third-placed Schalke and leaders Bayern Munich.
Bayern remain top on goal difference and have the chance to pull clear of the chasing pack on Sunday night when they face VfB Stuttgart, but just two points separate fifth from first in the German league.
Kagawa put Dortmund ahead on 27 minutes after a deft flick from Germany winger Kevin Grosskreutz gave him enough space to fire past goalkeeper Kevin Trapp.
But the guests drew level when the Dortmund defence allowed midfield Olcay Sahan plenty of space to hit a stunning volley past Dortmund captain Roman Weidenfeller on 60 minutes.
Dortmund's Poland striker Robert Lewandowski squandered the chance to claim his 11th goal of the season when he went one-on-one with Trapp, but fired straight at the goalkeeper on 72 minutes.
At the other end, only a fine save from Weidenfeller denied a header from Kaiserslautern striker Itay Shechter five minutes later.
With ten minutes left, teenage star Mario Goetze hit the crossbar with a curling shot from outside the area.
On Saturday, Borussia Moenchengladbach missed the chance to go top after a shock defeat 1-0 at strugglers Augsburg while Werder Bremen got back in the title race with a 4-1 win over Wolfsburg.
'Gladbach drop to fourth as Augsburg picked up only their third win of the season as midfielder Jan-Ingwer Callsen-Bracker scored the winner against his former club on 51 minutes.
The Bavarian minnows held on for a valuable win which lifted them up one place up from bottom.
Bremen are fifth after their 4-1 hammering of Wolfsburg with Peru striker Claudio Pizarro netting the hosts' second goal and setting up two more.
Wolfsburg's Germany defender Marcel Schaefer scored a consolation goal in the dying stages when his shot curled around Bremen goalkeeper Tim Wiese, but Wolves' coach Felix Magath has admitted his side face a relegation battle.
Bayer Leverkusen, who have qualified for the knock-out phase of the Champions League, are sixth after they were held to a goalless draw at Hanover 96.
Freiburg replaced Augsburg at the bottom when they were hammered 4-0 at Cologne with Germany striker Lukas Podolski slotting home two second-half goals in the rout.
Schalke had admitted Saturday that they are interested in signing the 26-year-old Germany star whose brace leaves him with 13 goals this season.
Schalke won 2-1 at Hertha Berlin on Friday to go third and draw level with Bayern and Dortmund.
Dutch star Klaas-Jan Huntelaar opened the scoring in the 20th minute to take his season's league tally to 14 and sole possession of the leading scorers chart in Germany.