How I took 25 minutes off my marathon time to get sub 4-hours.
#running #marathon
▶ SUBSCRIBE TO MY CHANNEL:
https://www.youtube.com/c/RobMcGarr?sub_confirmation=1
▶ FOLLOW ME ON INSTAGRAM:
https://www.instagram.com/rob.mcgarr/
▶ FOLLOW ME ON TWITTER:
https://twitter.com/robmcgarr
▶ SEND ME AN EMAIL:
[email protected]