Fresh off a runner-up performance at the Travelers Championship, J.T. Poston is in command of a the 36-hole lead at the John Deere Classic. Signing for rounds of 62-65, Poston sits at 15 under and is in possession of a four-stroke margin as players begin their weekends at TPC Deere Run.Poston’s nearest pursuer heading into the latter stage of this tournament is Denny McCarthy at 11 under. The Maryland native has been terrific for most of 2022 and arrived in Silvis, Illinois, having finished inside the top 10 at both the Memorial Tournament and the U.S. Open.With four additional competitors double-digits under par, it is inevitable that birdies will be had in the third and fourth rounds of the John Deere Classic. While Poston may hold a substantial lead for the time being, any lack of concentration will allow his chasers to make up ground in a blink of an eye over the course of the final 36 holes.Keep it locked here as CBS Sports will be keeping track of everything with live updates and analysis throughout Round 3 of the John Deere Classic. You can watch the final-round action live on CBS, CBSSports.com and the CBS Sports app from 3 – 6 p.m. ET on Saturday.