| Seibugeki 4 | |
|---|---|
| Dates | February 1st, 2020 |
| Address/City | Western Tokyo, Kanto 
|
| Attendance | 154 |
| Results | |
 winners
|
Jagaimo 1v1
|
Seibu was a Super Smash Bros. Ultimate regional tournament held in Western Tokyo, Kanto on February 1st, 2020.
Results
Super Smash Bros. Ultimate singles
(154 entrants)
Top 64 Bracket
| Place | Name | Character(s) | Earnings |
|---|---|---|---|
| 1st | Jagaimo |
 |
|
| 2nd | Take |
 |
|
| 3rd | Rotsuku |
 |
|
| 4th | T |
   |
|
| 5th | Ark |
 |
|
| 5th | Huto |
 |
|
| 7th | Ferretkuma |
 |
|
| 7th | Yamanyon |
 |
|
| 9th | Daiki |
 |
|
| 9th | Aiba |
|
|
| 9th |  Tsuba |
 |
|
| 9th | Trigger |
 |
|
| 13th | Hidakadrapion |
 |
|
| 13th | Hikari |
 |
|
| 13th | Night |
 |
|
| 13th | OKD |
 |