| card/ date | match | match type | title(s) |
|---|
 DDT Ganbare Pro Bad Communication 2018
Dec 16th 2018 | Jake Lee | def. | Kouki Iwasaki | | |
NOAH Winter Navigation 2018 - Day 1
Dec 7th 2018 | Kazma Sakamoto & Mitsuya Nagai & Yuji Hino | def. | Akitoshi Saito & Chang Jian Feng & Kouki Iwasaki | 6-person tag | |
NOAH Global League 2018 - Day 12
Nov 25th 2018 | Cody Hall & MAYBACH Taniguchi & Mitsuya Nagai | def. | Kazusada Higuchi & Kouki Iwasaki & Masa Kitamiya | 6-person tag | |
NOAH Autumn Navigation 2018 - Day 7
Oct 18th 2018 | Mohammed Yone & Quiet Storm | def. | Kouki Iwasaki & Masa Kitamiya | | |
NOAH Global Junior League 2018 - Day 10
Oct 4th 2018 | Kenoh | def. | Kouki Iwasaki | | |
NOAH Global Junior League 2018 - Day 9
Sep 30th 2018 | Akitoshi Saito | def. | Kouki Iwasaki, Masao Inoue | three-way | |
NOAH Global Junior League 2018 - Day 2
Sep 9th 2018 | Atsushi Kotoge & Go Shiozaki & Kouki Iwasaki | def. | Masao Inoue & Mohammed Yone & Yoshinari Ogawa | 6-person tag | |
NOAH Ark New Chapter
Sep 2nd 2018 | Atsushi Kotoge & Hajime Ohara & Kouki Iwasaki | def. | Junta Miyawaki & Kazuhiro Tamura & Seiya Morohashi | 6-person tag | |
DDT Live! Maji Manji #14
Aug 14th 2018 | Kazusada Higuchi & Kouki Iwasaki & Meiko Satomura | def. | Cherry & Makoto Oishi & Sanshiro Takagi | 6-person tag | |
DDT Live! Maji Manji #13
Aug 7th 2018 | MAO & Naomi Yoshimura & Rekka & Shunma Katsumata & Yuki Ueno | def. | Kazusada Higuchi & Kouki Iwasaki & Mizuki Watase & Nobuhiro Shimatani & Yuki Ino | 10-person tag | |
DDT Beer Garden Fight 2018 ~ DDT ~
Aug 5th 2018 | KUDO & Masahiro Takanashi | def. | Akito & Shunma Katsumata, Kota Umeda & Kouki Iwasaki, Mad Paulie & Soma Takao | four-way tag | |
DDT Live! Maji Manji #11
Jul 10th 2018 | Keisuke Okuda & Naomi Yoshimura | def. | Kouki Iwasaki & Shunma Katsumata | | |
DDT Road To Ryogoku 2018 ~ Dramatic Dream Clock Togetsu Bridge ~
Jun 30th 2018 | Keisuke Ishii | def. | Kouki Iwasaki | | |
DDT Live! Maji Manji #9
Jun 26th 2018 | Aaron Anders & Antonio Honda | def. | HARASHIMA & Kouki Iwasaki, Sammy Guevara & Shigehiro Irie | three-way tag | |
DDT Live! Maji Manji #8
Jun 12th 2018 | Mizuki Watase & Shigehiro Irie | def. | Kazusada Higuchi & Kouki Iwasaki | | |
DDT Live! Maji Manji #7
Jun 5th 2018 | Kouki Iwasaki | def. | Nobuhiro Shimatani | dark
| |
DDT DNA 45
Jun 3rd 2018 | Ryota Nakatsu | def. | Kouki Iwasaki | | |
DDT Live! Maji Manji #6
May 29th 2018 | Antonio Honda, Kazusada Higuchi, Ken Ohka, MAO, Meiko Satomura, Mizuki Watase, Tetsuya Endo | def. (pin) | Akito, Kota Umeda, Kouki Iwasaki, KUDO, Masahiro Takanashi, Mike Bailey, Naomi Yoshimura, Tomomitsu Matsunaga | Right To Challenge Anytime, Anywhere Contract Battle Royal | |
DDT Live! Maji Manji #5
May 22nd 2018 | Danshoku Dino & Makoto Oishi | def. | Keisuke Ishii & Kouki Iwasaki | | |
DDT Live! Maji Manji #4
May 8th 2018 | Kouki Iwasaki | def. | Rekka | dark
| |
DDT Live! Maji Manji #3
May 1st 2018 | Hiratimo Dragon & Toru Owashi | def. (DQ) | Antonio Honda & Kouki Iwasaki | dark
| |
DDT Live! Maji Manji #2
Apr 17th 2018 | Kouki Iwasaki | def. | Rekka | dark
| |
DDT Live! Maji Manji #1
Apr 10th 2018 | Keisuke Ishii | def. | Akito, Kouki Iwasaki | dark
three-way | |
DDT April Fool 2018
Apr 1st 2018 | Koju Takeda & Kota Umeda & Yuki Ueno | def. | Kazusada Higuchi & Kouki Iwasaki & Mizuki Watase | 6-person tag | |
DDT Taisho Dramatic Romantic 2018
Mar 11th 2018 | Keisuke Ishii | def. (pin) | Kouki Iwasaki | | |
Kouki Iwasaki during 2018