[7] Watford made his professional debut for the Roughriders the following season in the second half of the Riders Week 3 loss to the Montreal Alouettes.
[8] Watord, who came on to replace an ineffective Brandon Bridge, completed 10 of 22 pass attempts for 108 yards, throwing one touchdown and two interceptions in the game.
In the playoffs where the Roughriders were eliminated in their lone game against Winnipeg in the West Division semi-final, Watford recorded one rush for 6 yards.
[9] On July 29, 2019, after a season-ending injury to starting QB Jeremiah Masoli, the Tiger-Cats announced that they had signed Watford.
Following a series of injuries to quarterbacks Masoli and Evans, on September 16, 2021, Watford was named the starter for Hamilton's week 7 game against the Calgary Stampeders.