Pokémon GO Spring Marathon — Ends Tonight

Niantic’s Spring Marathon in Pokémon GO ends on Monday, May 18, 2026, at 8:00 p.m. local time, closing a week-long event built around special encounters, research and a temporary GO Pass. The event began on May 12 at 10:00 a.m. local time, according to Pokémon GO’s official blog and a companion post on Pokemon.com. (pokemongo.com) Flittle made its Pokémon GO debut during the event, and Espathra became available through evolution. A costumed Pikachu wearing a marathon visor also debuted during the event and can appear as a Shiny Pokémon. ### When does Spring Marathon actually end? Monday, May 18, is the final day of the event, and the official end time is 8:00 p.m. local time. (niantic.helpshift.com) Niantic said players can collect GO Points and rank up the Spring Marathon GO Pass only until that deadline. Pokemon.com gave the same event window: May 12, 2026, at 10:00 a.m. through May 18, 2026, at 8:00 p.m. local time. That means the cutoff follows each player’s local clock rather than a single global hour. ### Which Pokémon and bonuses are tied to this event? Flittle is the headline gameplay addition, with Pokemon.com saying the Pokémon debuted during Spring Marathon alongside its evolution, Espathra. (pokemongo.com) Pikachu wearing a marathon visor also made its first appearance during the event. Pokémon GO Hub’s event guide said the event included special wild spawns, event-themed 5 km Eggs, Field Research, Timed Research and rotating bonuses. (pokemongo.com) Serebii’s event page listed doubled PokéStop experience among the event effects and described event-specific hatches and research tied to the marathon theme. (pokemon.com) ### What is the GO Pass, and why does tonight matter? Tuesday, May 12, was the date players automatically received GO Pass: Spring Marathon, a free limited-time progression track, according to Niantic’s official post. The company said players earn GO Points, raise their rank and unlock rewards during the event window. (pokemon.com) US$4.99 is the listed starting price for GO Pass Deluxe for Spring Marathon, according to the same official post. Niantic said the deluxe version offers additional rewards on the same limited-time track. The deadline matters because the official post says rank progression ends at 8:00 p.m. local time on May 18. (pokemongohub.net) A fan-maintained event summary on the Pokémon GO Wiki separately says rewards remain claimable until May 20 at 8:00 p.m. local time, but the official blog excerpt available in search results specifically confirms the progression cutoff for Monday night. (pokemongo.com) ### Where can players check what is still live in-game? Niantic’s Help Center says the Today View in Pokémon GO shows active event information, including current bonuses and event-related updates. That is the fastest in-game check for whether Spring Marathon tasks or bonuses are still active before the local deadline. (pokemongo.com) Pokémon GO Hub’s weekly schedule for May 18-24 also identifies Monday as the final day of Spring Marathon and lists the rest of the week’s events after it ends. That post places the event in a broader weekly calendar for players planning what comes next. (pokemongo.com) ### What should players do before 8:00 p.m. local time? 8:00 p.m. local time is the key cutoff for finishing GO Pass progression, collecting event encounters and completing any remaining Timed Research that is tied to Spring Marathon’s event window. Niantic’s post says GO Points can be earned only through that time. (niantic.helpshift.com) Pokemon.com and third-party event trackers both say the event’s featured debuts are Flittle, Espathra and Pikachu wearing a marathon visor. Players still looking for those encounters, or for a Shiny version of the costumed Pikachu, have until the local deadline to use the event’s boosted content. (pokemongohub.net) May 18 is also the handoff date to the next set of weekly Pokémon GO activities, with Pokémon GO Hub’s weekly calendar pointing players to the May 18-24 schedule after Spring Marathon ends. Niantic’s Today View and official blog remain the primary places to confirm what is live after 8:00 p.m. local time. (pokemongo.com) (pokemongohub.net) (pokemon.com)