Easy things that helped me run a sub 4-hour marathon

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]