T1 secured a historic three-peat by defeating LCK rival KT Rolster 3-2 in the League of Legends Worlds 2025 Grand Final. This victory not only adds a third consecutive championship trophy to T1's legacy but also extends their dominance in the long-standing Telecom War rivalry.
The Telecom War is a 13-year competition between two major South Korean telecommunications companies: SK Telecom, represented by T1, and KT Corporation, represented by KT Rolster. Over the years, these organizations have fiercely competed across various esports, especially in the LCK (League of Legends Champions Korea).
Coming into Worlds 2025 as the two lowest seeds from the LCK, neither T1 nor KT Rolster were favored to claim the Summoner’s Cup. Nevertheless, both teams defied expectations with remarkable performances.
"With this back-to-back-to-back championship trophy, T1 also maintains the upper hand in the Telecom War, a 13-year-old rivalry between the two finalists."
These veteran teams brought the rivalry to new heights with a thrilling final, cementing T1’s status as a dominant force in international League of Legends esports.
T1's victory over KT Rolster in the 2025 Worlds final advances their legacy with a three-peat while intensifying the historic Telecom War rivalry in League of Legends esports.