
Prime League 1st Division Summer 2025 is a League of Legends competition. It ran from July 15, 2025 to August 6, 2025. 23 matches were played. 10 teams took part: SGE, EWI, KHK, ES, AFW, BIG, ROSS, TOG, USE, CGN. BIG won the title with the best match record of the field, 5–0. 12 of the 23 multi-game series ended without the loser taking a single game (52%). The longest winning run of the event belongs to BIG, with 5 straight match wins. The longest game lasted 47 minutes, between Austrian Force willhaben and Eintracht Frankfurt.
Promotion 2027
Sep 7, 2026 – Sep 17, 2026
Summer 2026
Jun 30, 2026 – Sep 12, 2026
Spring 2026
Apr 1, 2026 – May 30, 2026
Winter 2026
Feb 3, 2026 – Mar 7, 2026
Season Finals 2025
Aug 12, 2025 – Aug 24, 2025
Spring 2025
Mar 25, 2025 – May 30, 2025
Winter 2025
Jan 20, 2025 – Mar 8, 2025
Promotion 2025
Sep 3, 2024 – Sep 7, 2024