2001 through 2004: Beckford-Tseu spent his time patrolling the crease for the Guelph Storm, Oshawa Generals, and the Kingston Frontenacs of the OHL. His best year was in 2002-03 while playing for the Oshwa Generals he posted a 3.16 GAA along with 25 wins. Prior to the start of the 2003-04 season he was invited to the St. Louis Blues training camp after being selected 159th overall in the 2003 NHL entry draft. He played well during the first week of camp, maybe the best showing goalie on the ice, before being sent back to his Junior A club the Oshawa Generals. Early during the 2003-04 season he was traded by Oshawa to the Kinston Frontenacs where he notched a career best .911 save percentage.
2004-05: In 2004, Beckford-Tseu turned pro and attended the Worcester IceCats (AHL) training camp in St. Louis. After training camp he was assigned to the Blues ECHL affiliate the Peoria Rivermen. In 29 contests with Peoria, mostly backing up Alfie Michard, he posted a career-best 2.71 GAA along with a .908 save percentage winning with an 11-12-3 record. During the season the Worcester IceCats went through a period of injuries to co-starters Curtis Sanford and Jason Bacashihua and he got the call for a 29-minute appearance in which he made seven saves and allowed no goals.
Unsigned by the Blues heading into the 2007-08 season, he was signed in February 2008 when the Blues needed to call him up.
A big goaltender standing 6’3 and weighing 201 pounds, Beckford-Tseu covers a lot net. He is usually square to the puck and it appears shooters find it difficult to find an opening against him. His reflexes appear to be NHL caliber however he’ll need to learn to challenge skaters more and utilize his size to his advantage.