The Nationals' second baseman leads the majors in stolen bases by a wide margin — 31 through 72 games puts him on a pace that would shatter modern-era SB totals if it holds. His bat is a liability (.232 average, modest power), but stolen bases are the rarest commodity in fantasy and Nuñez provides them at a historic rate. Add in any league format if SBs are tight; in roto leagues where category margins are slim, he can swing the stolen base column by himself.

Nuñez leads the NL in stolen bases at a 59-SB pace with a 97th-percentile sprint speed (29.8 ft/sec) and an 84% success rate — this isn't just volume, it's efficient. The June offensive awakening (.467 OBP) means he's no longer an active batting average drag while he runs. At 14% owned, the most actionable pure-speed source on any wire in any league size.