Yoo Jae Suk sought to take back his title as the erstwhile 'ddakji king' on the latest episode of 'Running Man'.

The episode found the 'Running Man' cast members, along with guests Cha In Pyo, Ricky Kim, and Seo Jang Hoon, embarking on the latest version of the 'ddakji race' - 'ddakji' being a game where two opponents, armed with a folded piece of paper, attempts to flip the other side's ddakji on the ground with his own.

Accruing ddakji along the way, the teams found themselves at the final location - a ddakji arena where the new 'ddakji king' would be decided.

Moving his way up the tournament ladder, Yoo Jae Suk finally found himself facing his eternal rival, Kim Jong Kook. In an unprecedented match that went on for nearly an hour, and included a switching-out of the ddakjis since they had become too ragged(!), the two rivals went back-and-forth with each other, attempted to capture the crown once and for all.

However, it wasn't until an hour had elapsed when, in a stunning display of strength, Yoo Jae Suk marshalled up the remainder of his strength and overturned the 'tiger' Kim Jong Kook's hopes in a single, fell swoop.

Having regained his title of the 'ddakji king', Yoo Jae Suk went around the enthusiastic arena, hugging everyone on sight - even his erstwhile rival, who sincerely congratulated him on the return of his crown.

Check out the full episode below!