 # | Champion(s) | Since | Duration | Location | Note | Details |
| 8 | Tomohiro Ishii | 11.04.2025 | 265 days | Chicago, Illinois, USA | Matches | |
| 7 | Gabe Kidd | 11.05.2024 | 335 days | Ontario, California, USA | Matches | |
| 6 | Eddie Kingston | 05.07.2023 | 311 days | Tokyo, Japan | Matches | |
| 5 | KENTA (2) | 21.05.2023 | 45 days | Long Beach, California, USA | Matches | |
| 4 | Hikuleo | 03.05.2023 | 18 days | Fukuoka, Japan | Matches | |
| 3 | KENTA | 18.02.2023 | 74 days | San Jose, California, USA | Matches | |
| 2 | Fred Rosser | 15.05.2022 | 279 days | Philadelphia, Pennsylvania, USA | Matches | |
| 1 | Tom Lawlor | 23.04.2021 | 387 days | Port Hueneme, California, USA | 1 | Matches |
