Rings Japan: Maelstrom 4
- PromotionFighting Network RINGS
- VenueNew Korakuen Hall
- LocationTokyo, Japan
- Number of bouts7
Main Card
Tsuyoshi Kosaka
12-6-0
Heavyweight bout
1 x 20
VS
Submission, Calf Slicer | R1 · 5:10Jacob Hamilton
0-1-0

Kiyoshi Tamura
1-0-0
Heavyweight bout
1 x 20
VS
Submission, Rear Naked Choke | R1 · 3:41Dick Vrij
16-11-0

Amiran Bitsadze
0-5-0
Heavyweight bout
1 x 20
VS
KO/TKO, Spinning Back Kick | R1 · 4:21Dennis Raven
0-2-0
