|Divisions||Counter-Strike: Global Offensive, CrossFire, Rocket League, and fighting games|
|Location||United States (HQ)|
Europe (Rocket League)
Flipside Tactics (stylized as FlipSid3 Tactics) is an esports organization based in the United States, with teams competing in Counter-Strike: Global Offensive, Halo, CrossFire, fighting games, and StarCraft II. The organization formerly had teams competing in Tom Clancy's Rainbow Six Siege, Rocket League, and Dota 2. Former professional football player Ricky Lumpkin is a co-owner of the team.
|wayLander||Jan Peter Rahkonen||2016-06-20|
Bold denotes a CS:GO Major
- 9–12th — DreamHack Winter 2014
- 13–16th — ESL One Katowice 2015
- 1st — CIS Championship Voronezh
- 9–12th — ESL One Cologne 2015
- 3rd-4th — Electronic Sports World Cup 2015
- 13–16th — DreamHack Open Cluj-Napoca 2015
- 13–16th — MLG Major Championship: Columbus
- 5-8th — ESL One Cologne 2016
- 11-14th — ELEAGUE Season 1
- 5-8th — StarLadder i-League StarSeries Season 2
- 5-6th — DreamHack Winter 2016
- 1st — DreamHack Leipzig 2017
- 15-16th — ELEAGUE Major 2017 
- 9-11th — PGL 2017 Kraków Major Championship 
This section needs to be updated.October 2017)(
In 2015, Flipside acquired the roster from the team Teamy Weamy. On August 7, 2016, Flipside lost to iBUYPOWER Cosmic in the very first Rocket League Championship Series finals, placing second. Shortly after Michael "M1k3Rules" Costello left the team and was subsequently replaced by Marius "gReazymeister" Ranheim from Northern Gaming. On December 4, 2016, Flipside defeated Mockit Aces to win the Rocket League Championship Series for Season 2.
On February 28, 2019, it was announced that the roster that had won WSOE 4 a month prior had chosen to not re-sign with Flipside. With the departure of the roster, it was also announced that Flipside would not be participating in RLCS Season 7, ending the reign of the longest standing organization within Rocket League.
Tournament results (majors)
- 1st - Rocket League MLG Championship Series Season 1 Final
- 2nd — Rocket League Championship Series Season 1 Final
- 1st — Rocket League Championship Series Season 2 Final
- 5th — Rocket League Championship Series Season 3 Final
- 1st - DreamHack Summer 2017
- 5-6th — Rocket League Championship Series Season 4 Final
- 5-8th — DreamHack Open Leipzig
- 5-6th — Rocket League Championship Series Season 6 Final
- 1st - WSOE 4: The Rocket League Showdown
The Flipside Tactics FGC team was founded in August 2015 by Chris "NinjaCW" Harris. NinjaCW died on October 9, 2016. He was replaced by Matthew "Glitch" Testini as the new manager on October 28, 2016.
|alucarD||Antwan Ortiz||Street Fighter V||2015-07-18|
|LuCkyL0oPz||Allan Paris||Dead or Alive 5: Last Round||2015-08-05|
|Sleep||Darnell Waller||Killer Instinct||2015-08-15|
|Brolynho||Thomas Proença||Street Fighter V||2016-10-28|
- "Counter-Strike: Flipside Tactics". Archived from the original on June 3, 2016. Retrieved May 9, 2019.
- "FlipSid3 Tactics Releases Rainbow Six Siege Squad". FlipSide Tactics. January 23, 2018. Retrieved March 20, 2018.
- "Flipside Tactics add NFL pro Ricky Lumpkin to lead". Archived from the original on July 7, 2017. Retrieved May 9, 2019.
- "Liquidpedia: CIS Championship Voronezh".
- "Liquidpedia: StarLadder i-League StarSeries Season 2".
- "HLTV.org: dreamhack zowie open winter 2016".
- "HLTV.org: FLIPSID3 WIN DREAMHACK LEIPZIG".
- "HLTV.org: OpTic see off FlipSid3 in Atlanta".
- "HLTV.org: PGL Major Krakow 2017".
- "Flipside departs Rocket League". Flipsid3 Tactics. Retrieved March 4, 2019.
- Bahn, Chris. "FGC Mourns Death of F3 Manager Christopher 'NInjaCW' Harris". PVP Live. Retrieved October 9, 2016.
- Alambeigi, Alena. "Game community mourns death of Christopher 'NinjaCW' Harris". Mashable. Retrieved October 23, 2016.
- Fischer, Annabelle. "Flipsid3 Tactics sign Brolynho, add new FGC manager". TheScore eSports. Retrieved October 29, 2016.