MLB's hitters are struggling to thrive after 35 in the age of analytics and increased velocity

MLB's hitters over 35 face a steeper climb in the analytics era, highlighted in Phoenix as Nolan Arenado pushes through a back tweak while posting .256 with eight homers and 30 RBIs through Monday. He sits among a still-small senior cohort delivering solid production alongside Freddie Freeman, Max Muncy and Christian Walker. Through roughly the first one-third of the season, 35-and-older hitters have combined for just 5.6 WAR, underscoring a shift from an era when veteran sluggers dominated. The piece traces the change to quantified metrics—WAR, wOBA, BABIP, OPS+—becoming governing language since the late 2000s, driving teams to lock up younger stars early with lucrative deals.