Hosted By FLOW Swimmers

Flathead Lake Open Water Swimmers


The 2018 VIRTUAL Swimtathlon League is a year-long, postal pentathlon event where participants swim and submit times in stages.  Five events are included in each pentathlon stage (Fly, Back, Breast, Free, and Individual Medley), and cumulative times are used for league standings and results.







Date Range

1st Qtr. (Jan-Mar)

2nd Qtr. (Apr-June)

3rd Qtr. (July-Sep)

4th Qtr. (Oct-Nov)


Short Distance

Middle Distance

Long Distance



Stroke 50s + 100IM

Stroke 100s + 200IM

Stroke 200s + 400IM





Date Range

Anytime during 2018


Distance Free


500, 1000, 1650


$10 from each entry will be split between two worthy causes:  Flathead Lake Swim Guide  to sample and monitor the recreational water quality of Flathead Lake and the USMS Swimming Saves Lives Foundation.

New for 2018, a DISTANCE FREESTYLE Triathlon format will be added as a BONUS STAGE.  Complete all three events for a cumulative time that includes the 500, 1000, and 1650 freestyle.  Metric times (400, 800, and 1500) will be converted using the conversion tool on SwimSwam.com.

Also new for 2018, a DISABILITY ACCOMMODATION will be made for participants unable to swim any particular stroke.  For example, those unable to swim breaststroke may substitute in another stroke (of choice), and that time will be adjusted using baseline of averages from past Swimtathlon League results.  Strokes within any of the Individual Medley events may also be substituted and should be noted in the submission form.

Swimtathlon League standings and rankings will be updated monthly and posted online at the host website: www.FLOW Swimmers.com.  Certificates of accomplishment, compete with event rankings, and awards will be presented at the end of each stage and at the end of Stage Four (15 cumulative events).




  1. Click here to REGISTER NOW for the Virtual Swimtathlon League with Club Assistant..  You don't need your times to register!

  2. Once registered, proceed to the TIME SUBMISSION FORM to submit your times.  DISABILITY ACCOMMODATIONS should be noted on the form or noted in an e-mail to the Event Director:  Coach@FlowSwimmers.com.

  3. Submitted times may be from a meet OR during a practice.  The only timing requirement is a stopwatch and an independent timer/verifier.  This is an honor system event.

  4. With the exception of backstroke, there will be a starting block adjustment of 1.5-seconds per event.  For example, if the submitted time for a 50-yard free was 30.00, “from an in-water push,” then the official time would be 28.50 to compensate for the lack of a starting block.

  5. Swimmers may submit one challenge per month, per event.  For example, in January, a swimmer who submitted 50 free time of 30.00 could improve that time in February to 29.50 and submit that result.  Faster times may be submitted only once per month, per event (Free, Breast, Back, Butterfly, and Individual Medley).  League standings will be posted monthly.

  6. In STAGE FOUR, swimmers may submit faster times for any of the fifteen Swimtathlon League events.  The cumulative times for all eighteen events will determine the final Swimtathlon League standings.

  7. Times may be submitted in any course (SCY, SCM, and/or LCM); however, short course yards will be used for Swimtathlon League standings.  The conversion tool at SwimSwam.com will be used for determination.


To allow for WORLDWIDE participation, swimmers are NOT required to be associated with any governing body.  However, local program membership is HIGHLY encouraged, and anyone may join FLOW Swimmers where $100 of each membership will be donated to two worthy causes:  Flathead Lake Swim Guide  to sample and monitor the recreational water quality of Flathead Lake and the USMS Swimming Saves Lives Foundation.



Click here to register for USMS



Age for the Swimtathlon League is determined as of Dec. 31, 2018, except for 18-year-olds, who must be 18 at the time of entry.  Age groups for individual events: 18–24, 25–29, 30–34, 35–39 … (five year increments).



Please submit time though the online form at this link:  TIME SUBMISSION FORM.

Note #1:  All times will be converted to short course yards using the online conversion tool at SwimSwam.com.

Note #2:  DISABILITY ACCOMMODATIONS should be noted in the Time Submission for OR communicated by e-mail to the Event Director, Mark Johnston (Coach@FlowSwimmers.com).

Note #3:  Except for backstroke, times achieved from an in-water start will be adjusted faster by 1.5-seconds.

Note #4:  At any time, swimmers may submit new, improved times for any event from the current stage.  During Stage Four, ALL times (18 events) may be challenged, improved and submitted monthly.


Swimtathlon League standings & results will be updated monthly and posted at www.FLOWSwimmers.com.



Certificates of Accomplishment, complete with event standings, will be e-mailed to all participants at the end of each Swimtathlon Stage and at the completion of the 2018 event (all eighteen events).



League Fee:  $25.  $5 from each entry will go to the Flathead Lake Swim Guide to monitor the recreational water quality of Flathead Lake.  Also, $5 from each entry will be donated to the USMS Swimming Saves Lives Foundation.


Entries are accepted at any time during the year.  However, to be considered for Stage rankings, swimmers must be registered during that particular stage.



Online through Club Assistant:  REGISTER NOW.

Contact the Event Director, Mark Johnston, at 406-298-FLOW (3569) for mail-in registration details.

FLOW Swimmers :: Flathead Lake Open Water Swimmers, Polson, MT 59860 :: 406-298-FLOW (3569) :: Coach@FlowSwimmers.com