GO Battle League
Master League, Mega Halloween Cup: Great League Edition
Ended
Tue, Oct 27, 08:00 PM UTC to Tue, Nov 3, 09:00 PM UTC
Shown in your time zone. It starts at the same moment everywhere.
Bonuses
4× Stardust from GO Battle League win rewards
From the official Pokémon GO post. Checked Nov 15, 2026.
Read the official post
Have the event in your pocket
Reminders, counters and IV checks for Master League, Mega Halloween Cup: Great League Edition.
Download Optimon on the App Store