S13 (classification)
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This article is about the disability swimming classification. For other uses, see S13.
S13, SB13, SM13 are disability swimming classifications used for categorising swimmers based on their level of disability. Jane Buckley, writing for the Sporting Wheelies, describes the swimmers in this classification as having: "Swimmers who are the most sighted but are considered to be blind according to the IBSA B3."[1]