The @PGHMarathon is just four weeks away! To help countdown to the race we have hydration tips for runners from @JeffLucchinoRDN. pic.twitter.com/K0n2pGWuCy — UPMC Sports Medicine (@UPMCSportsMed) April 9, 2017 More info on marathon hydration: Runners World: http://www.runnersworld.com/racing/marathon-race-day-nutrition-and-hydration Competitor Magazine: http://running.competitor.com/2013/10/training/practicing-marathon-hydration-and-nutrition_57611