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A full calendar of sanctioned events is at USMS Event search ; Northwest Zone events are listed at Northwest Zone
Summer 2020
Calendar of Events
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2020 Open Water Virtual Grand Slam
Register online today to participate in a World Wide Virtual Open Water Swimming Event hosted by Montana's Flathead Lake Open Water Swimmers Club. Complete the different triathlon swim distances throughout summer and submit your results to see how you rank internatioanally. Though it is not a USMS sanctioned event, the Montana LMSC wants to continue to encourage adults to swim.
$15