Tournament:Smash World Tour 2021 Championships

The Smash World Tour 2021 Championships was the Super Smash Bros. Melee and Super Smash Bros. Ultimate finale for Smash World Tour 2021, and was held in Orlando, Florida from December 17th-19th, 2021. The 32 players of each game who qualified through the Regional Finals participated in the tournament. A Last Chance Qualifier for each game was held on December 17th with the top 8 players qualifying, bringing the total to 40 players for each game. The tournament had the third-largest singles pot for a Melee tournament and the second-largest singles pot for an Ultimate tournament. Qualified players could not enter side events, and side events were not streamed.

Format
There was a round-robin Group Stage and a final double-elimination Championship Bracket for each game. The 40 players were divided into eight round-robin groups, with each one including a player from the Last Chance Qualifier. The first placing player of each group was sent to the winners' side of the Championship Bracket, while the second and third placing player of each group was sent the losers' side of the Championship Bracket. The Top 24 was played in the Championship Bracket in a double-elimination format. All sets were best of 5, in both the Group Stage and Championship Bracket.

The Last Chance Qualifier on December 17th was played up until the top 8, with the top 8 not being played out. Four sets in group were played on December 17th during Phase 1 of the Last Chance Qualifier: Seed #1 vs. #3, #1 vs. #4, #2 vs. #3, and #2 vs. #4. The remaining six sets (Seed #1 vs. #2, Seed #3 vs. #4, and the Last Chance Qualifier player's four sets) were played on December 18th. Winners' Quarters, Losers' Round 1, and Losers' Round 2 of the Championship Bracket were played on December 18th. The Championship Bracket was played to completion on December 19th, starting with Winners' Semis and Losers' top 12.

In the event of a two-way tie in a Group Stage round-robin, the tie was to be broken by the head-to-head of game wins between the players. In a three-way tie, the following tiebreakers were applied, in the following order:
 * 1) Game win percentage in the Group Stage is defined as total games won divided by total games played.
 * 2) If still tied, the tied players would play another Round Robin with a best of 1 match. If still tied, this step would be repeated until the tie was resolved.

Melee
The following players qualified through the circuit for Melee:

Players denoted with an asterisk (*) were invited but did not attend the regional final. The following players replaced those that did not attend:


 * NA West:, . With no one from available, Spark was selected because he was considered for the tournament, but was unable to compete at the time.
 * NA East:,.
 * Europe: . With no European players available, Smash World Tour elected to give Oceania more representation by giving the spot to Sock.
 * East Asia:.

** Invited due to the regional final being cancelled.

Ultimate
The following players qualified through the circuit for Ultimate:

Players denoted with an asterisk (*) were invited but did not attend the regional final.

The following player replaced Yei:


 * Central America:.

** Invited due to the regional final being cancelled. *** Invited due to the eight Southeast Asian players being unable to attend the regional final.

Super Smash Bros. Melee singles
(40 entrants) Championship Bracket

Super Smash Bros. Ultimate singles
(40 entrants) Championship Bracket

Super Smash Bros. Melee doubles
(60 teams) Top 16 Bracket

Super Smash Bros. Melee Mid Tier singles
(143 entrants) Top 32 Bracket

Super Smash Bros. Ultimate doubles
(78 teams) Top 32 Bracket

Super Smash Bros. Ultimate Squad Strike
(249 entrants) Top 64 Bracket * DQ'd in Losers

Melee
The losers side of the Melee bracket was discovered to be incorrectly decided. Despite the discrepancy being discovered long before the sets would have started, the bracket was not changed.

An incident similar to the one that happened in Ultimate occurred in Melee on December 18th. In 's first game against, he noticed the knockback on Ice's Reflector was strange. He stopped the game to check the in-game rules and found it was set to a launch rate of 0.9, preventing it from affecting any more games. It was confirmed that the previous set on the same setup ( vs. ) had a launch rate of 1.0, meaning no other sets were affected.

Ultimate
Following the end of the vs  set, it was discovered that every set in Losers Top 12 up until then was played with Underdog Boost enabled,  as well as Sonix vs. the day prior. The tournament continued without any sets being replayed, due to the rules only allowing a game to be replayed if petitioned immediately afterwards. Many players and spectators were frustrated by the mistake and the outcome, believing that the competitive integrity of the tournament had been ruined; this was further emphasized by the tournament being the conclusion to, which had a $150,000 prize pool. Criticism was aimed at the tournament organizers for failing to check the ruleset before top 12 began, however, it was revealed that the ruleset had been verified before top 12 began, causing speculation that the rule change was made during top 12 by either a player in bracket or a tournament organizer. Before the set with Maister vs Sonix, someone audibly changing the ruleset can be heard. It is unknown whether this was done accidentally or intentionally, or by who. In a statement, Smash World Tour said they would be contacting the affected players (Maister,, , , and Sonix), and the tournament would continue as scheduled.

Trivia

 * beat players from four continents at the tournament, the most that has ever happened for one tournament. His most notable wins included from North America,  from South America,  from Europe, and  and  from Asia.