League of Legends player
Ruler: a world title at Samsung, then a decade at the top
Ruler won the world championship in 2017 by beating SK Telecom T1 in a final most people expected to go the other way, and he has been an elite bot laner ever since — through an organisational takeover, a move to China and a return.
His career is the cleanest illustration of how rebrands complicate quiz rounds: Samsung Galaxy, KSV eSports and Gen.G are the same team in three consecutive years.
- Real name
- Park Jae-hyuk
- Country
- South Korea
- Game
- League of Legends
- Role
- Bot lane
Career timeline
| Team | Years |
|---|---|
| Samsung Galaxy | 2016–2017 |
| KSV eSports | 2018 |
| Gen.G | 2018–2022 |
| JD Gaming | 2023–2024 |
| Gen.G | 2025– |
The 2017 final
Samsung Galaxy had lost the 2016 final to the same opponent. A year later they returned and won 3-0, with Ruler as the roster's carry. It is the only world title in our archive won by an organisation that was sold months later.
China and back
The two seasons at JD Gaming produced an MSI title in 2023 and a domestic sweep, and confirmed a pattern that now defines the top of the game: Korean stars moving to Chinese rosters and back. He returned to Gen.G in 2025.
Keep reading
Compiled from public tournament and roster records. Last reviewed: September 2026.