sean jefferson (@Semjeffe) header
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Endurance coach, Hoosier alum, sub 4 minute miler, former pro triathlete, indentical twin, Floridian. Insta @jeffersonsean

Joined March 2009
Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)Photo by sean jefferson (@Semjeffe)
This morning’s @underarmour + @gozwift 10k was a blast!🏃🏼‍♀️🤙🏼 Thanks to everyone who joined in - loved running & chatting with you! Keep your eyes out for more uarunning + @gozwift Friday group events (& more… instagram.com/p/B_YBwtRnukQ/… – at Flagstaff, AZ
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I have been getting requests to do a morning ⁦@GoZwiftRun⁩ Join me tomorrow morning at 8:30 AM PST. More information here. zwift.com/events/view/653778
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Want to run with me @janfrodeno @Holly_Lawrence_ @trithedon @sgroffy tomorrow at 8AM PST? Information below. @GoZwiftRun
Hop back in time with Prehistoric Rush - and you may even spot an Olympian or two?! 🧐🥇🦖 Sign up: zwift.com/events/series/zwif…
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Would you like to join me tomorrow morning for a 5 km run on @GoZwiftRun ? Tomorrow is your chance. March 5th 9am PST. Sign up here: zwift.com/events/tag/gwenjor…
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Can you join me for a run on @GoZwiftRun this Wednesday at 9AM PST? Click here to join. We’re going to run 4 km. zwift.com/events/view/263976
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Easy run to keep the legs fresh for tomorrow’s long run. Have you tried @GoZwiftRun yet? Hope to see you in Watopia soon. @GoZwift @PolarGlobal
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Want the indoor miles to go by quick? Check out my latest YouTube episode where I walk/run you though how to use @GoZwiftrun youtu.be/THdbSnjvGe4
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sean jefferson retweeted
SoCal runners, track fans, and anyone else interested in watching some very fast runners compete on July 9th....RSVP and pre-buy tickets here!! facebook.com/events/37441244…
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sean jefferson retweeted
#Sunsetmeet fields look pretty damn good! Follow the Sound Running IG for all fields the next few days. A few of the early Men’s 1500m entries- @RA_Andrews @TheRealMerb @HassyHass35 @benfblankenship @_EricJenkins @jameswest2010 @nickwillis @william_leer @chrisohare1500
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sean jefferson retweeted
SPREAD THE WORD Sunset Meet - July 9 Azusa Pacific’s Cougar Athletic Stadium 800, 1500, Steeple, 5K, 10K races set up for the IAAF Standard (and plenty of open events) Schedule, entry info, and details at the link below #sunsetmeet soundrunning.run/sunsettouri…
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sean jefferson retweeted
Join Coach @jeffersonracing at the Santa Monica College track tomorrow at 6:15am! Workouts are tailored to your speed and will help you gain strength, speed, and pacing ability for your races #triathlon #triathlontraining #running #tracksession #tower26 #beraceready
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sean jefferson retweeted
Dare to challenge the impossible. "I want to push the limits of what I can do." Learn more: nike.com/la #breakthrough #nikela
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Winner of the 2017 #NauticaMalibuTri #Herbalife International Distance Race, @Semjeffe ! @nautica @Equinox
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OMG!!!!!!!!!!!! @emmajcoburn and @courtfrerichs8 1-2! #USA #😭🇺🇸👯
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sean jefferson retweeted
This is mind blowing. hypb.st/ujpnk
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sean jefferson retweeted
Terrific beach session today at TOWER 26 with @Semjeffe @JimLubinski @JensonButton @Holly_Lawrence_
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sean jefferson retweeted
4:12.07... amazing! #FindFaster #IM703STG
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In the Scottsdale area?... Come down to @CycloLogic Jan 17th @ 6pm xitter.gq/cyclologic/status/8174…
Meet @Holly_Lawrence_ 70.3 World Champion - January 17th at 6pm. Prizes from @TrekBikes @RunnersDen RSVP Here: bit.ly/2ikX3YN
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sean jefferson retweeted
The obvious solution when a kangaroo has got your dog in a headlock xitter.gq/LmaooComedy/status/805…
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