TioPro, formerly known as tio tournament organizer and commonly known as tio, is a computer program for running tournaments created by Nealdt. The program was originally intended as an alternative to Tournament Maker 2, and is now the most commonly used tournament program in California's Melee scene. tio is designed to help a tournament host organize every aspect of an event, from player registration and seeding to bracket finalization and payout calculation.
Nealdt started work on tio in late March 2006 after using Tournament Maker 2 to run his Champ Combo: Yayuhzzz Edition tournament. The first version of the program was used to run Champ Combo: NorCal Edition in April 2006, but it wasn't until 0C2 that tio was again used for a large tournament. Progress on the application had increased rapidly during the months prior to 0C2, and tio was sufficiently advanced to run every event at the tournament, from single-elimination crew battles to a pair of round robin brackets which fed into a double elimination bracket. nealdt soon thereafter released a private beta of tio (along with regular updates) to the Smash Back Room; various members of that forum helped beta test tio over the following months. It wasn't until January 2007 that tio was released to the public, albeit only in the Pacific West regional forum of Smashboards; this was intentionally done to keep the user base small while the program underwent final bug fixes and feature additions.
Now that Nealdt has started AllisBrawl, the tio tournament organizer is available for anybody to use if they are hosting a tournament on AiB. The use of tio is mandatory for any tournament host that wants their results to be uploaded to AiB so their players may be recognized on the site for their placings.
 Tournament setup
The capabilities of tio include single elimination, double elimination, and Round Robin (also known as pools) formats. Each tournament can have multiple events, with any number of entrants. Organizers set options such as event details, event options, fees and prizes, and seeding.
While Nealdt created tio specifically for Smash, he has since upgraded it to include a wide variety of other competitive games. Because the program allows for multiple events, Tio will allow hosts to hold a multi-game tournament on a single computer.
 Seeding and brackets
The seeding options which tio incorporates include random, manual, in order, and multiple options which separate players by location and skill. Brackets can be recreated multiple times and can be manually manipulated. Wins and losses are easily recorded as the tournament progresses and updated to tio's online server, Tia, in real time. Brackets can also be de-attached from the main program to allow it to be viewed independently, such as on a projecter.
Tio allows the tournament organizer to export full brackets to image formats, and can also automatically copy simple results to the clipboard for quick posting on the web. Complete results and tournament histories can be found on Tia.
Tio is currently used at most California SSBM tournaments, and many others across the United States and the world. It is also one of the primary hosting programs for online tournaments. Tio is responsible for organizing these prominent tournaments, and many others:
 West Coast
Entire Midwest Circuit, including:
 East Coast
 Tournament archive
In addition to running a tournament operator's tournament, tio's online server, known as Tia (short for "tournament archive") hosts the results of any tournament which is run by or converted to tio format. Results, complete with full bracket images, are interlinked throughout the site to provide a record of a player's tournament history. Tia is now defunct.