Searches for New Particles at the Energy Frontier at the Tevatron

Run 2 at the Tevatron started in spring 2001. CDF and D0 are taking data at a center-of-mass energy of 1.96 TeV. First results on searches for phenomena beyond the Standard Model are presented. In January 2003, the integrated luminosity recorded per experiment was lower than the luminosity collected at Run 1. Nevertheless, these results are already competitive due to improved detector capabilities and to the increase in the center-of-mass energy.