Evans finished with 24 points and 10 rebounds and Ellis made 6 of 12 shots, all from 3-point range, in 26 minutes of action. Jordair Jett added 14 points and Grandy Glaze chipped in 10 for Saint Louis, which led wire to wire.
Thomas' layup 2 minutes into the second half trimmed the deficit to five, 44-39, but Saint Louis used a 9-3 run to pull away. The Rams never got any closer than five.
Saint Louis (17-5, 6-2) outscored Fordham 44-32 in the paint and turned 12 Ram turnovers into 17 points. The Billikens dished out a season-high 20 assists with just five turnovers.
Former Michigan point guard Spike Albrecht will play for Purdue as a graduate transfer next season.
Only six major-conference teams have failed to win an NCAA tournament game since the turn of the century. When will each program snap the streak?
Bruce Weber's Kansas State team earned a share of the Big 12 title three years ago, but a lot has changed since then and the pressure is on.