Selby represented England at the 2010 Commonwealth Games in Delhi
Daryl Selby upset world number one Nick Matthew to win his first British National Squash Championship.
The third seed from Essex came from 2-1 down to win 7-11, 11-9, 6-11, 11-9, 11-7 in an 84-minute marathon.
World number one Matthew was looking to win a record fourth domestic title, but Selby, ranked 10th in the world, proved too strong for the Yorkshireman.
In the women's final Lancashire's Laura Massaro beat Yorkshire's Jenny Duncalf 11-7, 9-11, 7-11, 11-7, 11-2.
Selby has now claimed three titles on the squash circuit in 2011, having previously won a PSA tour event in Vancouver and the Edinburgh Open.