Relationship on Running Man

Members         : Kim Jong kook, Ha-ha, Gary

Relation           : Kim Jong-kook and Two Kids 

Details             : They often found in the same team, Ha-ha and Gary are usually under the control of the domination of Kim Jong-kook. Thus, Ha-ha and Gary are always seen shown as being afraid of Kim Jong-kook. They're back in episode 266, when they formed a team along with Eunhyuk and Hong Ji Young. Gary said that Kim Jong Kook and the kids are back.

Members            : Gary, Song Ji-hyo

Relation              : Monday Couple 

Details            : The primary loveline of the show, they show interest in each other on Mondays, which is the day the show was filmed. (Later, the show was filmed on both Mondays and Tuesdays, leading to jokes about the couple not being in effect on Tuesdays.) Since the revelation of Song Ji-hyo's real-life relationship with her management company's CEO, the loveline between the two is deemed to have been removed in episode 82; however Gary sometimes brings this issue back up again, often to comedic effect. Later Monday Couple rarely showed. Since the news about Jihyo's broke with the CEO, it seems that Monday Couple is back to the show. In addition, Kim Jong Kook often announces that Monday Couple is officially coupled since Jihyo kissed Gary in China fan meeting.

Members         : Song Joong ki, Song Ji hyo

Relation           : Song-Song Couple, Song-Song Siblings 

Details             : It first attracted attention from episode 15 when Joong-Ki kissed Ji-Hyo on the cheek. They later evolved into a siblings relationship as the Song-Song Siblings.

Members          : Lee Kwang soo, Song Joong ki

Relation           : Same-Aged Friends 

Details             : Lee Kwang-su claims to be close friends with Song Joong-ki due to their same age (both born in 1985), but Song Joong-ki would often deny their close friendship, leaving Kwang-su appearing depressed. Song Joong-ki finally admitted their relationship in his leaving speech during the filming of his last episode. In real life, they are the real best friend. Song Joong Ki once said that Kwangsoo often visit him while he's on duty and Kwangsoo is the only celebrity friend who had visited Joongki's house.

Members         : Kim Jong-Kook, Song Ji-Hyo (SpartAce)

Relation           : The Best Chasing Team

Details             : It’s revealed on episode 19, when they became chasing team. They catch the other members easily. Song Ji Hyo gave instruction while Kim Jong Kook executed. The Commander and the ace have gathered together so, it’s said that the strongest chasing team in this generation was born. They are known as SpartAce. Other article related to this couple here

Members          : Yu Jae-Suk, Kim Jong-Kook

Relation           : The Two Centers of Power

Details             : It’s revealed first on episode 29 when they had special mission called ‘gather your team mates’. They seldom in the same team because the two power center can’t unite in one team. In episode 32, they became leaders for business team 1 and 2. In episode 33, they became the leader for running village team 1 and 2. In episode 34, they became the leader for domestic team and foreign team. In episode 35 and 36, they became the leader for platoon 1 and 2. In episode 37, the teams were divided into Hyuk’s people and Kook’s people. In episode 40, the teams were divided into Yu Maestro Team and Kook Maestro Team. In episode 44 and 45, the teams divide into Yu-Pro Team and Kim-Pro Team. In episode 46 and 47, the teams were divided into Jae Suk Team and Jong Kook Team. Recently, they always fight in every episode, even if they are in a same team. If they meet, they always start it by bickering.

Members              : Ji Suk-jin, Lee Kwang-soo

Relation                : New Dumb and Dumber, Easy Brothers 

Details                  : The New Dumb and Dumber relation was first depicted in episode 65, when they became a duo. Later, they were known as the Easy Brothers when they were designated spies for Episode 68, and a clue was offered to the other members that threatened to reveal their identities. The clue was "Easy", a combination of their surnames 이(Lee, pronounced ee) and 지(Ji). Whenever they are paired up, they are also known for performing their "Feel, Hunch, Cross!" cheer before each mission. (필, 촉, 크로스! with 촉 meaning "a hunch" or "good intuition" in colloquial usage) Initially deemed to be an alliance between the two weakest members of the show, they are quickly becoming a pairing that can no longer be simply ignored.

Members      : Yu Jae-suk, Lee Kwang-soo

Relation        : Yu-Lee, Lee-Yu

Details          : This was formed when Yu Jae-suk and Lee Kwang-su was paired up as a team in Episode 90 by combining both their surnames together, 유(Yu) and 이(Lee, pronounced ee). Throughout Episode 90, Yu Jae-suk and Lee Kwang-soo often does the "Yu-Lee" cross. Often at which, Lee Kwang-su would state that it sounds like the name of After School's UEE. They would say that they miss her.

Members          : Yu Jae-suk, Ji Suk-jin, Lee Kwang-soo

Relation           : Jail Regulars Trio, Lee-Yu-Ji Brothers 

Details             : This trio is often eliminated the earliest during Bells Hide and Seek, and meet each other at the jail. They are also known Lee-Yu-Ji, an evolved form ofEasy Brothers. It was created as Ji Suk-jin was getting jealous of Lee Kwang-soo being close with Yu Jae-suk, and calling themselves Lee-Yu in episode 81. Asking whether Lee Kwang-soo was with Easy or the new Lee-Yu, Yu Jae-suk replies "that is the reason" ("the reason" is "Lee-Yu-Ji" in hangul), and Ji Suk-jin reluctantly joins them to become Lee-Yu-Ji, which is their last names put together.

Members          : Yu Jae-suk, Ji Suk-jin

Relation           : Suk-Brothers 

Details             : The two MCs have been close friends for more than 20 years and that they both have "Suk" in their name. However, Ji Suk-jin is always jealous of the good relationship Jae-suk has with Kim Jong-kook. In episode 27, Ji Suk-jin was referred to as Yu Jae-suk's "sunflower" (always facing towards him) and was officially christened as such in Episode 40.

Members          : Kim Jong-kook, Ha-ha

Relation           : My Big Brother and My Little Brother

Details             : These two are often on the same team and they have an older brother/little brother relationship throughout the show and often address each other as such in a playful manner. They often have a concert together.

Members          : Yu Jae-suk, Ha-ha

Relation           : Yu-Ha 

Details             : This "loveline" was formed after the announcement that Song Ji-hyo was dating the CEO of her company in episode 82. Ji Suk-jin commented that a new loveline was needed in the show. Following which, Ha-ha commented that he was preparing for a love line and Yu Jae-suk immediately jokingly replied, saying that he couldn't sleep because he has been thinking about Ha-ha too much. They often argue with each other with the superpowers given on episode 74. "The one who controls time" and "The one who drives me crazy" are the top two said by Yu Jae-suk and Ha-ha.

Members          : Kim Jong-kook, Lee Kwang-soo

Relation           : Kook-Su, Tiger and Giraffe

Details             : This was formed in Episode 82 when Lee Kwang-su and Kim Jong-kook were paired into a team. So their names were combined to form "Kooksu" which is a pun because it also means "Noodles" in Korean. Also, since Kim Jong-kook resembles a tiger and Lee Kwang-su resembles a giraffe, their relationship is also known as Tiger and Giraffe. This happened again in Episode 84 where Lee Kwang-su and Kim Jong-kook were chosen by the opposing team to pair up together with paper handcuffs, leaving both of them stuck to each other for the rest of the episode. Kwang soo only focus now is to beat Jong Kook. Recently, LKS keeps annoying KJK.

Members          : Ji Suk-jin, Lee Kwang-soo, Kim Jong-kook

Relation           : Kookisy, Serengeti 

Details             : Pronounced as "kook-ee-ji", it was formed by combining all three of their names together by using the first syllable, 국 (Kook), 이 (Lee, pronounced ee) and 지(Ji). In Episode 86 after some loose references in previous episodes, Kim Jong-Kook overthrows the "Kookisy" by pointing out the tiger and giraffe pairing with Lee Kwang-su and then saying that Ji Suk-jin is like an "impala" which makes them the "serengeti" team.

Members          : Ji Suk-jin, Lee Kwang-soo, Song Ji-hyo

Relation           : Mong-easy 

Details             : Pronounced as "mong-ee-ji", it was formed by combining "Mong" as in Mong Ji-hyo, "Lee" as in Kwang-soo's surname and "Ji" as in Suk-jin's surname. They are often teamed together in many episodes and the nickname was formed especially after episode 96.

Members          : Ha-ha, Lee Kwang-soo

Relation           : Betraying Masters 

Details             : Ha-ha and Lee Kwang-soo are well known to betray in races. This nickname was formed when both of them were spies in episode 99. In episode 106, Kim Jong-kook said that he eliminate both of them first as they were constantly betraying. In episode 109 and 110, this duo made a return again.

Members        : Ha-Ha, Lee Kwang Soo, Ji Suk Jin
Relation          : Traitor Team
Details            : After Haha and Lee Kwang Soo were known as Betraying Master, Ji Suk Jin joined the group and formed Traitor Team. They often teamed in. The episode that marked them as Traitor Club was ep. 146.