The **PFL 1: 2025 First Round Main Card** launched the Professional Fighters League's "One Shot" single-elimination tournament at Universal Studios Florida in Orlando. Headlined by a welterweight clash between Jason Jackson and Andrey Koreshkov, the event featured high-stakes quarterfinal matchups in the welterweight and featherweight divisions. It marked a major evolution for the PFL, replacing the point-based season with a sudden-death format as fighters pursue a $1 million grand prize.