Sexsmith made his major junior debut in the WHL during the 2004–05 season, playing a total of three games with the Medicine Hat Tigers and Vancouver Giants.

Consequentially, Slade left the team to seek a professional career,[1] leaving Sexsmith as the undisputed starter.

Sexsmith would go on to complete the season as the league's leader in goals-against-average and would backstop the Giants to their first Memorial Cup.

He was named to the WHL's Second All-Star Team,[2] however the Giants were eliminated in the second round by the eventual 2008 Memorial Cup champions, the Spokane Chiefs.

[5] After finishing Juniors, Sexsmith would play three seasons in the San Jose Sharks organization before bouncing between the KHL, the HCB South Tyrol of the Italian Series A hockey league and the Abbotsford Heat.