|Community Effort Orlando Series|
|winners|| Armada (2014)|
Hungrybox (2016, 2017, 2018, 2019)
|winners|| ZeRo (2015, 2017)|
|winners|| MkLeo (2019)|
|Most successful player(s)||Hungrybox (Melee 2016, 2017, 2018, and 2019)|
The Community Effort Orlando series, or simply CEO, is an annual fighting game tournament series typically held annually in Orlando, Florida. CEO is widely recognized as one of the premier events for fighting games. The event is hosted and organized by Alex Jebailey and CEO Gaming. The series has held events for Super Smash Bros., Super Smash Bros. Melee, Super Smash Bros. Brawl, Project M, Super Smash Bros. for Wii U, and Super Smash Bros. Ultimate.
The tournament series began in 2010, with Super Smash Bros. Melee and Super Smash Bros. Brawl as side events. The two games would be dropped after CEO 2011, but Melee would later return alongside Project M on the official game lineup at CEO 2014. Super Smash Bros. for Wii U would later be introduced at CEO 2015, replacing Project M on the official lineup. For CEO 2019, for Wii U was replaced with Super Smash Bros. Ultimate. Melee was absent from CEO 2021, making Ultimate the sole Super Smash Bros. event at the tournament. However, Melee returned at CEO 2022 alongside Ultimate.
The CEO Dreamland subseries is dedicated entirely to Super Smash Bros., and features all official Smash games as its only main events. So far, two Dreamland events have been held, one in 2017 and one in 2020.
List of tournaments
|CEO 2010*||June 5th-6th, 2010||80+|
|CEO 2011*||June 10th-12th, 2011||60+|
|CEO 2014||June 27th-29th, 2014||262+|
|CEO 2015*||June 26th-28th, 2015||512+|
|CEO 2016||June 24th-26th, 2016||1,488|
|CEO 2017||June 16th-18th, 2017||866|
|CEO 2018||June 29th-July 1st, 2018||1,091|
|CEO 2019||June 28th-30th, 2019||1,493|
|CEO 2021||December 3rd-5th, 2021||777|
|CEO 2022*||June 24th-26th, 2022||834|
- Prior to CEO 2014, all Smash games were side events. In addition, Project M was a side event at CEO 2015 and Smash 64 was a side event at CEO 2022.
|CEO Dreamland||April 14th-16th, 2017||727|
|CEO Dreamland 2020||March 13th-15th, 2020||970|
Melee Winners 
|2010||CEO 2010*||Juan Debiedma||Hungrybox||Colbol|
|2011||CEO 2011*||Juan Debiedma||Hungrybox||Linguini|
|2014||CEO 2014||Adam Lindgren||Armada||Mango|
|2015||CEO 2015||William Hjelte||Leffen||Armada|
|2016||CEO 2016||Juan Debiedma||Hungrybox||Mew2King|
|2017||CEO 2017||Juan Debiedma||Hungrybox||Plup|
|2018||CEO 2018||Juan Debiedma||Hungrybox||Plup|
|2019||CEO 2019||Juan Debiedma||Hungrybox||Wizzrobe|
|2022||CEO 2022||Justin McGrath||Plup||Magi|
* Melee was a side event in 2010 and 2011.
Project M Winners
|2014||CEO 2014||Gonzalo Barrios||ZeRo||Wizzrobe|
|2015||CEO 2015*||Forrest Griffin||MrLz||Jfyst|
* Project M was a side event in 2015.
Smash 4 Winners 
|2015||CEO 2015||Gonzalo Barrios||ZeRo||Nairo|
|2016||CEO 2016||Jason Bates||ANTi||Zinoto|
|2017||CEO 2017||Gonzalo Barrios||ZeRo||MKLeo|
|2018||CEO 2018||Leonardo Lopez Perez||MkLeo||Tweek|
Ultimate Winners 
|2019||CEO 2019||Leonardo Lopez Perez||MkLeo||Marss|
|2021||CEO 2021||Kolawole Aideyan||Kola||Glutonny|
|2022||CEO 2022||Carlos Pérez||Sonix||Riddles|
Smash 64 Winners (side event)
|2022||CEO 2022||Steven Rodriguez||Loto||Crockett|
Brawl Winners (side event)
|2010||CEO 2010*||Akilade Akiwumi
|2011||CEO 2011||Akilade Akiwumi||RedHalberd||Xaltis|
* The top 4 players decided to split.
- ESAM notably won Divekick at CEO 2014, having won a belt which is not for Smash Bros.
|Main series||2010 · 2011 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2021 · 2022|
|Dreamland||2017 · 2020|
|Other events||CEO Winterfest 2014 · CEO 2014 Prologue · Smash the Record · CEO Prologue 2016|