Pitch tracking / starters, 4-seam fastball

Fastball velocity, April through July

90 starters tracked by four-seam fastball velocity since Opening Day. Each line is one pitcher's average velocity by month. Red lines are the ten biggest gainers, blue lines the ten biggest decliners. Hover a line to see the exact velocities.

Biggest gainers Biggest decliners Everyone else

Data: FanGraphs pitch-type leaderboards, min IP by month@jack_mariners