Swimming competition in which any of the standard strokes may be used
(as used in the
... [DOC] [TLE] part 1: swimming rules - US Masters Swimming [PAR] Once a touch has been made, the swimmer may turn in any manner ..... 
Championship Committee, may be used to review stroke or turn infractions called 
on... [DOC] [TLE] swimming terms - Whatcom Family YMCA [PAR] Backstroke: one of the four primary competitive swimming styles.