https://community.usms.org/swimming/f/general/6624/20km-butterfly-lake-crossing... The Kingston teen was also the only swimmer to cross the 20-kilometre lake using the physically demanding butterfly stroke, a decision she said she made to increase the difficulty of the trek that took her 7 hours, 47 minutes and 30 seconds. Thaten-USTelligent Community 12https://community.usms.org/thread/97244?ContentTypeID=1Mon, 07 Jul 2008 13:09:46 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:a51ba3a8-4760-4a7e-a63b-bd8e5f56d21aFormer MemberI notice she swam at a very narrow part near the eastern edge of the lake rather than the wider part of the lake. Still I don&#39;t think there are many who could handle the prospect of doing the butterfly for nearly eight hours.<div style="clear:both;"></div>https://community.usms.org/thread/97140?ContentTypeID=1Mon, 07 Jul 2008 13:06:18 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:a84be761-925f-43b0-8c7b-8f16ae8af3bbFormer MemberThis sounds like a shoulder problem waiting to happen. I generally opt out of any butterfly over 100 yards - with 50 and or no butterfly at all being the preferred distances. Maybe, maybe not. Different people get shoulder problems from different strokes. For me it&#39;s back crawl and occasionally front crawl that cause problems, fly is no problem (for my shoulders). Admittedly I wouldn&#39;t consider 20km of fly!<div style="clear:both;"></div>https://community.usms.org/thread/97046?ContentTypeID=1Mon, 07 Jul 2008 13:01:11 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:0240f04a-9dde-4483-88ce-2d37d432daadFormer MemberWhy Swim across dinky Lake Erie with its warm water. She should have done Lake Ontario 32 miles and followed in Vickie Keith&#39;s butterfly swim.<div style="clear:both;"></div>https://community.usms.org/thread/97024?ContentTypeID=1Mon, 07 Jul 2008 06:28:53 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:cd559d24-45ae-4671-af01-13286e087b79SLOmmafanThis sounds like a shoulder problem waiting to happen. I generally opt out of any butterfly over 100 yards - with 50 and or no butterfly at all being the prefered distances.<div style="clear:both;"></div>