That's Craig Kimbrel's K/9 rate since the beginning of August (29 Ks in 12 1/3 innings). Around the beginning of August, most people were touting Aroldis Chapman as a Cy Young contender, most pointing to what was then a 16.87 K/9 rate. Since that point, Chapman has continued to add saves, but at a much lower K rate.of only 12.7 since August 1 (23 Ks in 16 1/3 innings). As a result, Chapman's K rate has fallen to 16.09, while Kimbrel's now sits at 16.50, significantly higher than Eric Gagne's 2003 season of 14.98, the current single-season record for at least 40 innings.