Cha Seung Won grew extremely frustrated at Song Ji Hyo aka 'Ace Jihyo' on the September 4 episode of 'Running Man'...because she's just too good at everything. 

The 'Running Man' crew grouped up in teams of four, with guest Cha Seung Won, HaHa, Yoo Jae Suk, and Lee Kwang Soo on the blue team and the rest on the white team. The two teams then engaged in an intense battle of milk caps (the Korean variation), all with the aim of getting to eat free jokbal (seasoned pig trotters). 

The 'Ace,' as per usual, beat every one of the blue team members in rock-paper-scissors and succeeded in flipping over their cards. 

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A frustrated and flustered Cha Seung Won, who got to witness the Ace's skills firsthand up close, complained, "I'll just go buy some jokbal for myself. She's just too good."