The Tweek vs. Bankai battle in Super Smash Bros. Ultimate took place on Jan 17, 2020 as a part of the Glitch 8 Singles tournament. This confrontation belongs to the Bracket I13.
The results of the confrontation are as follows:
Jan 17, 2020: Tweek 2 - 0 Bankai
The Tweek vs. Bankai — Jan 17, 2020 battle recording stream you can watch in the VODs section