Niklas Edin (Karlstad, SWE) won 10-5 over Bruce Mouat (Stirling, SCO) in the Final of the BKT Tires OK Tire World Men's Curling Championship, held April 2 - 11, 2021 in Calgary, Alberta. Advancing directly to the semifinals, Edin won 11-3 over Peter De Cruz (Geneva, SUI) to advance to the championship game. of the 2021 BKT Tires OK Tire World Men's Curling Championship in Calgary, Alberta;
 
Edin finished 11-2 in the 0-team qualifying round. . In their opening game, Edin lost 8-7 to De Cruz, then responded with a 8-5 win over John Shuster (Duluth, USA). Edin won 7-6 against Joel Retornaz (Pinerolo, ITA), then won 8-7 against Sergei Glukhov (Moscow, RCF). Edin went on to lose 9-8 against Steffen Walstad (Oppdal, NOR). Edin responded with a 6-5 win over Mouat. Edin won 9-1 against Mads Noergaard (Hvidovre, DEN), then won 10-4 against Jaap van Dorp (Zoetermeer, NED) and 10-2 against Yeong Seok Jeong (Uijeongbu, KOR). Edin won 5-3 against Qiang Zou (Harbin, CHN), then won 9-7 against Brendan Bottcher (Edmonton, CAN) and 8-4 against Sixten Totzek (Fuessen, GER). Edin won 7-2 against Yuta Matsumura (Tokoro, JPN) in their final qualifying round match.
 
Edin ranks 238th overall on the Year-to-Date rankings with 0.000 points earned so far this season.