  The results based on 1992-95 data (Run 1) from the CDF and DO experiments on
the measurements of the W boson mass and width are presented, along with the
combined results.
  We report a Tevatron collider average M_W = 80.456 +- 0.059 GeV. We also
report the Tevatron collider average of the directly measured W boson width
Gamma_W = 2.115 +- 0.105 GeV. We describe a new joint analysis of the direct W
mass and width measurements.
  Assuming the validity of the standard model, we combine the directly measured
W boson width with the width extracted from the ratio of W and Z boson leptonic
partial cross sections. This combined result for the Tevatron is Gamma_W =
2.135 +- 0.050 GeV. Finally, we use the measurements of the direct total W
width and the leptonic branching ratio to extract the leptonic partial width
Gamma(W -> e nu) = 224 +- 13 MeV.
