| Maegashira 13 West, 8-7 | ||||||||
| 1989 Hatsu | Day 1 | Koboyama | Yorikiri | Takanohama | 1 | 0 | ||
| 1989 Hatsu | Day 2 | Kitakachidoki | Yorikiri | Koboyama | 1 | 1 | ||
| 1989 Hatsu | Day 3 | Koboyama | Sukuinage | Kotoinazuma | 2 | 1 | ||
| 1989 Hatsu | Day 4 | Koboyama | Oshidashi | Ho-o | 3 | 1 | ||
| 1989 Hatsu | Day 5 | Jingaku | Yorikiri | Koboyama | 3 | 2 | ||
| 1989 Hatsu | Day 6 | Hananoumi | Yorikiri | Koboyama | 3 | 3 | ||
| 1989 Hatsu | Day 7 | Koboyama | Sukuinage | Wakasegawa | 4 | 3 | ||
| 1989 Hatsu | Day 8 | Koboyama | Oshidashi | Kotofuji | 5 | 3 | ||
| 1989 Hatsu | Day 9 | Takanofuji | Yorikiri | Koboyama | 5 | 4 | ||
| 1989 Hatsu | Day 10 | Koboyama | Tsukiotoshi | Itai | 6 | 4 | ||
| 1989 Hatsu | Day 11 | Kyokudozan | Yorikiri | Koboyama | 6 | 5 | ||
| 1989 Hatsu | Day 12 | Koboyama | Tsukidashi | Sasshunada | 7 | 5 | ||
| 1989 Hatsu | Day 13 | Koboyama | Oshidashi | Tamaryu | 8 | 5 | ||
| 1989 Hatsu | Day 14 | Kasugafuji | Oshidashi | Koboyama | 8 | 6 | ||
| 1989 Hatsu | Day 15 | Takanomine | Uwatedashinage | Koboyama | 8 | 7 | ||
| Maegashira 9 East, 8-7 | ||||||||
| 1989 Haru | Day 1 | Kirishima | Tsuridashi | Koboyama | 0 | 1 | ||
| 1989 Haru | Day 2 | Masurao | Sukuinage | Koboyama | 0 | 2 | ||
| 1989 Haru | Day 3 | Tochinowaka | Okuridashi | Koboyama | 0 | 3 | ||
| 1989 Haru | Day 4 | Kyokudozan | Yorikiri | Koboyama | 0 | 4 | ||
| 1989 Haru | Day 5 | Koboyama | Tottari | Fujinoshin | 1 | 4 | ||
| 1989 Haru | Day 6 | Koboyama | Hikkake | Enazakura | 2 | 4 | ||
| 1989 Haru | Day 7 | Kotoinazuma | Yorikiri | Koboyama | 2 | 5 | ||
| 1989 Haru | Day 8 | Koboyama | Sukuinage | Ryogoku | 3 | 5 | ||
| 1989 Haru | Day 9 | Koboyama | Sukuinage | Daijuyama | 4 | 5 | ||
| 1989 Haru | Day 10 | Tagaryu | Yorikiri | Koboyama | 4 | 6 | ||
| 1989 Haru | Day 11 | Koboyama | Oshidashi | Tamaryu | 5 | 6 | ||
| 1989 Haru | Day 12 | Koboyama | Tsukiotoshi | Takanomine | 6 | 6 | ||
| 1989 Haru | Day 13 | Koboyama | Hikiotoshi | Takamisugi | 7 | 6 | ||
| 1989 Haru | Day 14 | Kasugafuji | Hatakikomi | Koboyama | 7 | 7 | ||
| 1989 Haru | Day 15 | Koboyama | Oshidashi | Itai | 8 | 7 | ||
| Maegashira 3 West, 3-12 | ||||||||
| 1989 Natsu | Day 1 | Konishiki | Yorikiri | Koboyama | 0 | 1 | ||
| 1989 Natsu | Day 2 | Onokuni | Oshidashi | Koboyama | 0 | 2 | ||
| 1989 Natsu | Day 3 | Hokutoumi | Yorikiri | Koboyama | 0 | 3 | ||
| 1989 Natsu | Day 4 | Hokutenyu | Yorikiri | Koboyama | 0 | 4 | ||
| 1989 Natsu | Day 5 | Koboyama | Yorikiri | Tagaryu | 1 | 4 | ||
| 1989 Natsu | Day 6 | Sakahoko | Yorikiri | Koboyama | 1 | 5 | ||
| 1989 Natsu | Day 7 | Itai | Hatakikomi | Koboyama | 1 | 6 | ||
| 1989 Natsu | Day 8 | Kotoinazuma | Yorikiri | Koboyama | 1 | 7 | ||
| 1989 Natsu | Day 9 | Takamisugi | Tsukiotoshi | Koboyama | 1 | 8 | ||
| 1989 Natsu | Day 10 | Ozutsu | Uwatenage | Koboyama | 1 | 9 | ||
| 1989 Natsu | Day 11 | Kyokudozan | Yorikiri | Koboyama | 1 | 10 | ||
| 1989 Natsu | Day 12 | Takanofuji | Yorikiri | Koboyama | 1 | 11 | ||
| 1989 Natsu | Day 13 | Koboyama | Hikiotoshi | Kasugafuji | 2 | 11 | ||
| 1989 Natsu | Day 14 | Koboyama | Oshidashi | Takanohama | 3 | 11 | ||
| 1989 Natsu | Day 15 | Kotofuji | Tsuridashi | Koboyama | 3 | 12 | ||
| Maegashira 12 West, 8-7 | ||||||||
| 1989 Nagoya | Day 1 | Kotonishiki | Oshidashi | Koboyama | 0 | 1 | ||
| 1989 Nagoya | Day 2 | Koboyama | Yorikiri | Takanofuji | 1 | 1 | ||
| 1989 Nagoya | Day 3 | Koboyama | Yorikiri | Hoshiiwato | 2 | 1 | ||
| 1989 Nagoya | Day 4 | Kyokudozan | Yorikiri | Koboyama | 2 | 2 | ||
| 1989 Nagoya | Day 5 | Kinoarashi | Uwatenage | Koboyama | 2 | 3 | ||
| 1989 Nagoya | Day 6 | Koboyama | Yorikiri | Takamisugi | 3 | 3 | ||
| 1989 Nagoya | Day 7 | Koboyama | Tsukiotoshi | Enazakura | 4 | 3 | ||
| 1989 Nagoya | Day 8 | Koboyama | Yorikiri | Ozutsu | 5 | 3 | ||
| 1989 Nagoya | Day 9 | Sasshunada | Oshidashi | Koboyama | 5 | 4 | ||
| 1989 Nagoya | Day 10 | Koboyama | Yorikiri | Daijuyama | 6 | 4 | ||
| 1989 Nagoya | Day 11 | Koboyama | Fusensho | Tagaryu | 7 | 4 | ||
| 1989 Nagoya | Day 12 | Itai | Tsukiotoshi | Koboyama | 7 | 5 | ||
| 1989 Nagoya | Day 13 | Koboyama | Yoritaoshi | Kotoinazuma | 8 | 5 | ||
| 1989 Nagoya | Day 14 | Wakasegawa | Yorikiri | Koboyama | 8 | 6 | ||
| 1989 Nagoya | Day 15 | Fujinoshin | Yorikiri | Koboyama | 8 | 7 | ||
| Maegashira 10 East, 7-8 | ||||||||
| 1989 Aki | Day 1 | Kyokudozan | Shitatedashinage | Koboyama | 0 | 1 | ||
| 1989 Aki | Day 2 | Koboyama | Hatakikomi | Itai | 1 | 1 | ||
| 1989 Aki | Day 3 | Koboyama | Hatakikomi | Wakasegawa | 2 | 1 | ||
| 1989 Aki | Day 4 | Koboyama | Okuridashi | Jingaku | 3 | 1 | ||
| 1989 Aki | Day 5 | Kotoinazuma | Yorikiri | Koboyama | 3 | 2 | ||
| 1989 Aki | Day 6 | Hananokuni | Yorikiri | Koboyama | 3 | 3 | ||
| 1989 Aki | Day 7 | Koboyama | Sukuinage | Sasshunada | 4 | 3 | ||
| 1989 Aki | Day 8 | Masurao | Yorikiri | Koboyama | 4 | 4 | ||
| 1989 Aki | Day 9 | Koboyama | Tsukiotoshi | Kotofuji | 5 | 4 | ||
| 1989 Aki | Day 10 | Kasugafuji | Yorikiri | Koboyama | 5 | 5 | ||
| 1989 Aki | Day 11 | Misugisato | Hikiotoshi | Koboyama | 5 | 6 | ||
| 1989 Aki | Day 12 | Koboyama | Oshidashi | Sakahoko | 6 | 6 | ||
| 1989 Aki | Day 13 | Kinoarashi | Yorikiri | Koboyama | 6 | 7 | ||
| 1989 Aki | Day 14 | Koboyama | Hatakikomi | Enazakura | 7 | 7 | ||
| 1989 Aki | Day 15 | Kushimaumi | Kotenage | Koboyama | 7 | 8 | ||
| Maegashira 12 West, 7-8 | ||||||||
| 1989 Kyushu | Day 1 | Sakahoko | Yorikiri | Koboyama | 0 | 1 | ||
| 1989 Kyushu | Day 2 | Koboyama | Hatakikomi | Kasugafuji | 1 | 1 | ||
| 1989 Kyushu | Day 3 | Koboyama | Kotenage | Tochitsukasa | 2 | 1 | ||
| 1989 Kyushu | Day 4 | Kyokudozan | Yorikiri | Koboyama | 2 | 2 | ||
| 1989 Kyushu | Day 5 | Koboyama | Yorikiri | Misugisato | 3 | 2 | ||
| 1989 Kyushu | Day 6 | Koboyama | Tsukiotoshi | Kyokugozan | 4 | 2 | ||
| 1989 Kyushu | Day 7 | Takamisugi | Oshidashi | Koboyama | 4 | 3 | ||
| 1989 Kyushu | Day 8 | Koboyama | Sukuinage | Kinoarashi | 5 | 3 | ||
| 1989 Kyushu | Day 9 | Ozutsu | Yorikiri | Koboyama | 5 | 4 | ||
| 1989 Kyushu | Day 10 | Kotoinazuma | Uwatenage | Koboyama | 5 | 5 | ||
| 1989 Kyushu | Day 11 | Koboyama | Hatakikomi | Itai | 6 | 5 | ||
| 1989 Kyushu | Day 12 | Kotonishiki | Yorikiri | Koboyama | 6 | 6 | ||
| 1989 Kyushu | Day 13 | Takanohama | Yorikiri | Koboyama | 6 | 7 | ||
| 1989 Kyushu | Day 14 | Kitakachidoki | Yorikiri | Koboyama | 6 | 8 | ||
| 1989 Kyushu | Day 15 | Koboyama | Yorikiri | Ryukozan | 7 | 8 | ||
| Maegashira 14 East, 3-12 | ||||||||
| 1990 Hatsu | Day 1 | Kinoarashi | Yorikiri | Koboyama | 0 | 1 | ||
| 1990 Hatsu | Day 2 | Kushimaumi | Oshidashi | Koboyama | 0 | 2 | ||
| 1990 Hatsu | Day 3 | Koboyama | Yoritaoshi | Takanohama | 1 | 2 | ||
| 1990 Hatsu | Day 4 | Akinoshima | Yorikiri | Koboyama | 1 | 3 | ||
| 1990 Hatsu | Day 5 | Daijuyama | Yorikiri | Koboyama | 1 | 4 | ||
| 1990 Hatsu | Day 6 | Misugisato | Hatakikomi | Koboyama | 1 | 5 | ||
| 1990 Hatsu | Day 7 | Kyokudozan | Yorikiri | Koboyama | 1 | 6 | ||
| 1990 Hatsu | Day 8 | Takanofuji | Uwatenage | Koboyama | 1 | 7 | ||
| 1990 Hatsu | Day 9 | Takamisugi | Oshidashi | Koboyama | 1 | 8 | ||
| 1990 Hatsu | Day 10 | Wakasegawa | Yorikiri | Koboyama | 1 | 9 | ||
| 1990 Hatsu | Day 11 | Koboyama | Hatakikomi | Itai | 2 | 9 | ||
| 1990 Hatsu | Day 12 | Kasugafuji | Tsuridashi | Koboyama | 2 | 10 | ||
| 1990 Hatsu | Day 13 | Sakahoko | Yorikiri | Koboyama | 2 | 11 | ||
| 1990 Hatsu | Day 14 | Koboyama | Oshidashi | Tochitsukasa | 3 | 11 | ||
| 1990 Hatsu | Day 15 | Kotoinazuma | Yorikiri | Koboyama | 3 | 12 | ||
| Juryo 8 East, 8-7 | ||||||||
| 1990 Haru | Day 1 | Koboyama | Yorikiri | Kototsubaki | 1 | 0 | ||
| 1990 Haru | Day 2 | Koboyama | Oshidashi | Takatoriki | 2 | 0 | ||
| 1990 Haru | Day 3 | Wakahanada | Yorikiri | Koboyama | 2 | 1 | ||
| 1990 Haru | Day 4 | Masurao | Yorikiri | Koboyama | 2 | 2 | ||
| 1990 Haru | Day 5 | Koboyama | Oshitaoshi | Takahanada | 3 | 2 | ||
| 1990 Haru | Day 6 | Koboyama | Okuritaoshi | Sasshunada | 4 | 2 | ||
| 1990 Haru | Day 7 | Owakamatsu | Yorikiri | Koboyama | 4 | 3 | ||
| 1990 Haru | Day 8 | Hoshiiwato | Yorikiri | Koboyama | 4 | 4 | ||
| 1990 Haru | Day 9 | Koboyama | Tsukiotoshi | Onohana | 5 | 4 | ||
| 1990 Haru | Day 10 | Nishinoryu | Okuridashi | Koboyama | 5 | 5 | ||
| 1990 Haru | Day 11 | Koboyama | Oshitaoshi | Komafudo | 6 | 5 | ||
| 1990 Haru | Day 12 | Koboyama | Yoritaoshi | Kinoarashi | 7 | 5 | ||
| 1990 Haru | Day 13 | Koboyama | Yorikiri | Tamakairiki | 8 | 5 | ||
| 1990 Haru | Day 14 | Ishinriki | Okuridashi | Koboyama | 8 | 6 | ||
| 1990 Haru | Day 15 | Saganobori | Yorikiri | Koboyama | 8 | 7 | ||
| Juryo 3 West, 6-9 | ||||||||
| 1990 Natsu | Day 1 | Koboyama | Oshidashi | Kototsubaki | 1 | 0 | ||
| 1990 Natsu | Day 2 | Dairyu | Yorikiri | Koboyama | 1 | 1 | ||
| 1990 Natsu | Day 3 | Wakahanada | Yorikiri | Koboyama | 1 | 2 | ||
| 1990 Natsu | Day 4 | Koboyama | Yoritaoshi | Hananofuji | 2 | 2 | ||
| 1990 Natsu | Day 5 | Onohana | Yorikiri | Koboyama | 2 | 3 | ||
| 1990 Natsu | Day 6 | Akebono | Oshidashi | Koboyama | 2 | 4 | ||
| 1990 Natsu | Day 7 | Kinoarashi | Yorikiri | Koboyama | 2 | 5 | ||
| 1990 Natsu | Day 8 | Koboyama | Oshidashi | Masurao | 3 | 5 | ||
| 1990 Natsu | Day 9 | Koboyama | Sabaori | Takanomine | 4 | 5 | ||
| 1990 Natsu | Day 10 | Koboyama | Yorikiri | Daitetsu | 5 | 5 | ||
| 1990 Natsu | Day 11 | Sasshunada | Oshidashi | Koboyama | 5 | 6 | ||
| 1990 Natsu | Day 12 | Kyokugozan | Tsukiotoshi | Koboyama | 5 | 7 | ||
| 1990 Natsu | Day 13 | Nishinoryu | Yorikiri | Koboyama | 5 | 8 | ||
| 1990 Natsu | Day 14 | Osuzuki | Yorikiri | Koboyama | 5 | 9 | ||
| 1990 Natsu | Day 15 | Koboyama | Yorikiri | Fujinoshin | 6 | 9 | ||
| Juryo 6 West, 7-8 | ||||||||
| 1990 Nagoya | Day 1 | Koboyama | Yoritaoshi | Hananofuji | 1 | 0 | ||
| 1990 Nagoya | Day 2 | Wakahanada | Yorikiri | Koboyama | 1 | 1 | ||
| 1990 Nagoya | Day 3 | Takatoriki | Oshidashi | Koboyama | 1 | 2 | ||
| 1990 Nagoya | Day 4 | Kotohakusan | Okuridashi | Koboyama | 1 | 3 | ||
| 1990 Nagoya | Day 5 | Koboyama | Yorikiri | Dairyu | 2 | 3 | ||
| 1990 Nagoya | Day 6 | Hoshiiwato | Yorikiri | Koboyama | 2 | 4 | ||
| 1990 Nagoya | Day 7 | Koboyama | Oshidashi | Tamaryu | 3 | 4 | ||
| 1990 Nagoya | Day 8 | Koboyama | Kotenage | Ishinriki | 4 | 4 | ||
| 1990 Nagoya | Day 9 | Tomoefuji | Yorikiri | Koboyama | 4 | 5 | ||
| 1990 Nagoya | Day 10 | Sasshunada | Yorikiri | Koboyama | 4 | 6 | ||
| 1990 Nagoya | Day 11 | Nishinoryu | Uwatenage | Koboyama | 4 | 7 | ||
| 1990 Nagoya | Day 12 | Kitakachidoki | Uwatenage | Koboyama | 4 | 8 | ||
| 1990 Nagoya | Day 13 | Koboyama | Katasukashi | Kinoarashi | 5 | 8 | ||
| 1990 Nagoya | Day 14 | Koboyama | Tsukiotoshi | Kotonowaka | 6 | 8 | ||
| 1990 Nagoya | Day 15 | Koboyama | Yorikiri | Daitetsu | 7 | 8 | ||
| Juryo 8 East, 6-9 | ||||||||
| 1990 Aki | Day 1 | Asahisato | Yorikiri | Koboyama | 0 | 1 | ||
| 1990 Aki | Day 2 | Koboyama | Sukuinage | Kototsubaki | 1 | 1 | ||
| 1990 Aki | Day 3 | Daitetsu | Yorikiri | Koboyama | 1 | 2 | ||
| 1990 Aki | Day 4 | Koboyama | Tsukiotoshi | Oginohana | 2 | 2 | ||
| 1990 Aki | Day 5 | Koboyama | Hatakikomi | Nishinoryu | 3 | 2 | ||
| 1990 Aki | Day 6 | Tokitsunada | Yorikiri | Koboyama | 3 | 3 | ||
| 1990 Aki | Day 7 | Kotonowaka | Yorikiri | Koboyama | 3 | 4 | ||
| 1990 Aki | Day 8 | Koboyama | Tsukiotoshi | Tamaryu | 4 | 4 | ||
| 1990 Aki | Day 9 | Koboyama | Yorikiri | Sasshunada | 5 | 4 | ||
| 1990 Aki | Day 10 | Hoshiiwato | Yorikiri | Koboyama | 5 | 5 | ||
| 1990 Aki | Day 11 | Kotohakusan | Oshidashi | Koboyama | 5 | 6 | ||
| 1990 Aki | Day 12 | Kinoarashi | Yorikiri | Koboyama | 5 | 7 | ||
| 1990 Aki | Day 13 | Ryugahama | Yorikiri | Koboyama | 5 | 8 | ||
| 1990 Aki | Day 14 | Koboyama | Tsukiotoshi | Tomoefuji | 6 | 8 | ||
| 1990 Aki | Day 15 | Kumao | Yorikiri | Koboyama | 6 | 9 | ||
| Juryo 11 West, 2-8-[Retired] | ||||||||
| 1990 Kyushu | Day 1 | Goken | Yorikiri | Koboyama | 0 | 1 | ||
| 1990 Kyushu | Day 2 | Koboyama | Yorikiri | Kinoarashi | 1 | 1 | ||
| 1990 Kyushu | Day 3 | Kumao | Uwatenage | Koboyama | 1 | 2 | ||
| 1990 Kyushu | Day 4 | Nishinoryu | Yorikiri | Koboyama | 1 | 3 | ||
| 1990 Kyushu | Day 5 | Tomoefuji | Yorikiri | Koboyama | 1 | 4 | ||
| 1990 Kyushu | Day 6 | Koboyama | Oshidashi | Kotohakusan | 2 | 4 | ||
| 1990 Kyushu | Day 7 | Tamaryu | Hikiotoshi | Koboyama | 2 | 5 | ||
| 1990 Kyushu | Day 8 | Daigaku | Yorikiri | Koboyama | 2 | 6 | ||
| 1990 Kyushu | Day 9 | Saganobori | Yorikiri | Koboyama | 2 | 7 | ||
| 1990 Kyushu | Day 10 | Tokitsunada | Fusensho | Koboyama | 2 | 8 | 5 | |