Tournament:SWT: South America Ultimate Online Qualifier

SWT: South America Ultimate Online Qualifier was the fourth Super Smash Bros. Ultimate qualifier for Phase One of the Smash World Tour 2021. It is region locked to South America. The top twelve players of the main bracket and the top four players from the Last Chance Qualifier were invited to the Phase Two tournament.

Regions

 * 🇦🇷 Argentina Argentina
 * 🇧🇴 Bolivia Bolivia
 * 🇧🇷 Brazil Brazil
 * 🇨🇱 Chile Chile
 * 🇨🇴 Colombia Colombia
 * 🇪🇨 Ecuador Ecuador
 * 🇫🇷 France French Guiana
 * 🇬🇾 Guyana Guyana
 * 🇵🇾 Paraguay Paraguay
 * 🇵🇪 Peru Peru
 * 🇸🇷 Suriname Suriname
 * 🇺🇾 Uruguay Uruguay
 * 🇻🇪 Venezuela Venezuela

Super Smash Bros. Ultimate singles
(519 entrants) Phase 3 (Top 32) Final (Top 8) * DQ'd from Losers.

Super Smash Bros. Ultimate Last Chance Qualifier
(507 entrants) Phase 3 (Top 36) Finals (Top 8) * DQ'd from Losers.

Controversy
Controversy arose when Chilean smasher accused  for dishonesty. Nyx noted that Lukitu lagtested against 5 different opponents, including notable players such as and, causing them to get disqualified from the set for poor connection. Nyx stated that some of the players disqualified tested their connections together and had little problem, leading him to believe Lukitu was doing it to his advantage, as the distance between Brazil and both Chile and Peru was greater than or around the distance across the continental United States. In response, stated that Lukitu did not break any rules and did not show any connection issues when doing the lagtest, but also stated that he would be adjusting the rules so that a lagtest can be called only when the match is completely unplayable.

Lukitu would later respond to the accusation by clarifying misconceptions and going through each disqualification one-by-one, each with a screenshot of the conversation on Start.gg. Specifically, Lukitu stated that in two of the DQs, the opponent called for a lagtest and failed it; he only called for a lagtest during CruxisPhantom's set - where CruxisPhantom admitted he had internet problems that day - and 's set - where both players agreed the connection was bad.