The Men's 50 metre backstroke event at the 2010 Commonwealth Games took place on October 4 and 5 2010, at the SPM Swimming Pool Complex.
Four heats were held, with most containing the maximum number of swimmers (eight). The top sixteen times qualified for the semi-finals and, the top eight from there qualified for the finals.
References
Swimming at the 2010 Commonwealth Games – Men's 50 metre backstroke Wikipedia(Text) CC BY-SA