I'm not great at math, but is it even possible for a swing in batting average that great at this point in the season? Let's assume Javy plays 10 of the remaining 11 games, and gets an average of 4 PA per game, so 40 PA. Given his 5% walk rate, let's say 38 AB. To raise his BA to .315, he'd need to go 23 for 38. To raise it to .320, he'd need to go 28 for 38.