Jacob Misiorowski's overwhelming 98.9% implied probability stems from his historic 2026 regular-season dominance for the Milwaukee Brewers. The 24-year-old right-hander posted a league-leading 1.80 ERA, 0.80 WHIP, and 252 strikeouts across 174.2 innings while averaging over 100 mph on his fastball and reaching 105.5 mph. He led all qualified starters in key metrics including strikeout rate and WAR, anchoring the NL's top team with elite command and swing-and-miss stuff that outpaced established aces such as Chris Sale, Yoshinobu Yamamoto, and Cristopher Sanchez. Cy Young voting focuses on regular-season performance, limiting realistic paths for challengers unless unforeseen voter shifts occur around workload or team success.