Tournament:Collision 2023

Collision 2023 was a Super Smash Bros. Melee major and Super Smash Bros. Ultimate supermajor held in Parsippany-Troy Hills, New Jersey, from March 10th-12th, 2023. This tournament marked the first time the Collision series held a Melee event since in 2016. The winner of Ultimate singles,, qualified for.

Collision 2023 was the first major Ultimate tournament to ban 's Phantom MLG technique, under the penalty of a game loss for the player performing the technique, or a game loss for the accuser in the event of a false accusation. Afterwards, Steve would be banned at Collision Series events temporarily to collect data for both the immediate local community and beyond.

Super Smash Bros. Melee singles
(494 entrants) Top 32 Brackets Top 16 Bracket * DQ'd in losers

Super Smash Bros. Melee doubles
(93 entrants) Top 32 Bracket Top 8 Bracket

Super Smash Bros. Ultimate singles
(619 entrants) Top 64 Brackets Top 16 Bracket * DQd from losers

Super Smash Bros. Ultimate doubles
(85 entrants) Top 32 Bracket Top 8 Bracket

Super Smash Bros. Melee Giant Melee
(59 entrants) Top 24 Bracket

Super Smash Bros. Ultimate Squad Strike
(131 entrants) Top 32 Bracket Top 8 Bracket

Trivia

 * 's final placement of 2nd in Ultimate singles marks the highest placement of an player at an Ultimate major/supermajor.
 * 's final placement of 17th in Ultimate singles marks the highest placement of a player at an Ultimate supermajor.
 * 's 9th place finish in Ultimate singles marks his lowest placement at an open bracket offline tournament since nearly 4 years prior, and his first ever placement outside of top 8 at an open bracket offline Ultimate tournament in North America.
 * This is the first Melee doubles tournament where and  have teamed together in over four years, with the brothers last teaming together at House of Paign 19 in November 2018.
 * This tournament marks the first Ultimate supermajor win by a and  player.
 * ' victory in Ultimate singles marks the first supermajor Smash title won by a Canadian player since 's victory in Smash 64 singles at.
 * The winners of both Ultimate and Melee singles were coincidentally one-time major tournament winners obtaining their second major win.