who holds the record for most passing yards in a season
List of NFL quarterbacks with 5,000 passing yards in a season Passing for 5,000 yards in a single regular season is a rare achievement in the National Football League (NFL). Dan Marino was the first player to reach the 5,000 mark when he set an NFL record with 5,084 yards passing in 1984.[1] Marino's record remained intact for over a decade after his retirement in 1999.[2] Peyton Manning currently holds the record with 5,477 passing yards in 2013. Drew Brees is the only NFL quarterback to reach 5,000 yards more than once, having done so five times.[3]
Alex Smith On August 31, 2014, Smith and the Chiefs agreed to a four-year contract extension.[75] Smith appeared in 15 games and completed 65.3% of his passes in the 2014 season while throwing for 3,265 yards and 18 touchdowns to only six interceptions. However, the Chiefs finished 9-7 and did not qualify for the playoffs.