Operation was planned to continue until the Tevatron could no longer keep up with the Large Hadron Collider. This point was reached on 30 September 2011, when the Tevatron was shut down. In their final analyses, the collaborations of the two detectors at Tevatron (CDF and DØ) report that based on their data they can exclude the possibility of a Higgs boson with a mass between 100 GeV/ c and 103 GeV/ c and between 147 GeV/ c and 180 GeV/ c at a 95% confidence level. In addition, they found an excess of events that could be from a Higgs boson in the range 115– 140 GeV/ c. However, the significance of the statistics is deemed too low to base any conclusions on.