Albany, which had the first possession in overtime, took a 34-31 lead after Herb Glass’ 41-yard field goal, but couldn’t stop the Raiders from moving the ball.
Colgate needed seven plays on their winning drive, including a 14-yard pass from Gavin McCarney while falling down to Dan Basil on third-and-10 at the 25-yard line.
Eachus, a Walter Payton Award finalist and 2010 Patriot League Offensive Player of the Year, had 165 yards on 36 carries, including four straight to end the game.
Colgate trailed 31-21 at halftime before a 4-yard touchdown run by Gavin McCarney late in the third made it 31-28. A 24-yard field goal by Joe Uglietto with 10:36 remaining sent it into overtime.