Taylor Swift's "Patient Zero" commands a 98% implied probability of finishing as Spotify's number-two song for the week ending October 9, reflecting the artist's sustained streaming dominance and the track's early momentum from a high-profile album rollout. Massive global plays, playlist placements, and fan engagement have locked in frontrunner status, consistent with Swift's historical chart performance during peak promotional windows. Competing entries from KAROL G, Judeline, rusowsky, and ADÉLA sit at minimal odds, underscoring the gap in current metrics. An upset remains possible if late-week viral spikes or algorithmic shifts boost another single, though such scenarios have proven rare against Swift's established streaming scale.