Stemming from Peter Bendix and Chris Dutton's work, Chris and Derek Carty team up to provide an Excel spreadsheet for calculating, comparing, and determining trends in xBABIP.

HT to all4tookie

Dave Allen presents some of his wonderful heat maps based on the HITf/x data.

Where would you think the hardest hit (highest horizontal speed) balls are located? - The answer may surprise you.

I can't claim finding this since another user posted this over at VEB but it is an interesting article.

The brief from the contest website: "In baseball, a curveball creates a physical effect and a perceptual puzzle. The physical effect (the curve) arises because the ball’s rotation leads to a deflection in the ball’s path. The perceptual puzzle arises because the deflection is actually gradual but is often perceived as an abrupt change in direction (the break). Our illusions suggest that the perceived "break" may be caused by the transition from the central visual system to the peripheral visual system. Like a curveball, the spinning disks in the illusions appear to abruptly change direction when an observer switches from foveal to peripheral viewing."