T1 secured a historic three-peat by defeating LCK rival KT Rolster 3-2 in the 2025 League of Legends World Championship Grand Final. This victory adds a third straight Worlds trophy to T1’s impressive record.
The win further strengthens T1's dominance in the long-standing Telecom War, a fierce rivalry spanning 13 years between two South Korean telecom giants: SK Telecom (T1) and KT Corporation (KT Rolster). Over 70 League of Legends matches played under this rivalry, T1 has claimed victory in 53 encounters.
Despite entering the tournament as the two lowest-seeded LCK teams, both T1 and KT Rolster delivered surprising performances. Neither was initially considered a strong contender to capture the Summoner’s Cup in 2025. However, their veteran status fueled remarkable runs that culminated in a thrilling Grand Final showdown.
"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."
T1’s victory not only marks their continued global esports legacy but also asserts their supremacy in an intense rivalry that shapes South Korea’s competitive League of Legends scene.
Summary: T1 has triumphed at the 2025 League of Legends Worlds, achieving a rare three-peat and solidifying their edge in the storied Telecom War against KT Rolster.