Won semi-finals match (Obic) 10-7 Won Japan X Bowl XVIII (Asahi Beer) 15-6 Won 58th Rice Bowl National Championship game (at Ritsumeikan) 26-7
Murakami
2005
West
1st
8
2
0
Won semi-finals match (Kashima) 3-0 Lost Japan X Bowl XIX (at Obic) 16-25
Murakami
2006
West
1st
7
1
0
Lost semi-finals match (Kashima) 6-13
2007
West
1st
9
0
0
Won semi-finals match (Obic) 29-26 OT Won Japan X Bowl XXI (Fujitsu) 33-13 Won 61st Rice Bowl National Championship game (Kwansei Gakuin) 52-38
2008
West
2nd
8
1
0
Won Wild card match (Obic) 49-7 Won semi-finals match (Onward) 44-17 Won Japan X Bowl XXII (Kashima) 28-14 Lost 62nd Rice Bowl National Championship game (Ritsumeikan) 13-17
2009
West
1st
8
0
0
Won 2nd stage match (IBM) 49-7 Won 2nd stage match (Obic) 23-20 Lost final stage match (Kashima) 26-34
2010
West
1st
9
0
0
Won 2nd stage match (Asahi Beer) 24-19 Won 2nd stage match (Fujitsu) 23-6 Won final stage match (IBM) 31-28 Lost Japan X Bowl XXIV (Obic) 16-20
2011
West
1st
8
2
0
Won 2nd stage match (Asahi Beer) 28-10 Lost 2nd stage match (Fujitsu) 10-24
Won 2nd stage match (at IBM) 55-24[3] Lost 2nd stage match (Kashima) 45-47 Lost final stage match (at Fujitsu) 13-28
Tetsuo Takata (MVP) David Motu (ROY)
Nobuyoshi Araki
2014
West
2nd
7
1
0
Won 2nd stage match (at Asahi Beer) 65-3[4] Lost 2nd stage match (Fujitsu) 24-48
Nobuyoshi Araki
2015
West
1st
7
0
0
Won 2nd stage match (at Asahi Beer) 38-14[5] Won 2nd stage match (Nojima Sagamihara) 36-0 Won final stage match (Nojima Sagamihara) 45-17[6] Won Japan X Bowl XXIX (at Fujitsu) 24-21 Won69th Rice Bowl National Championship game (Ritsumeikan) 22-19[7]
Tetsuo Takata (MVP)
Nobuyoshi Araki
2016
West
1st
8
1
0
Won quarterfinals match (Asahi Beer) 21-14[8] Lost semi-finals match (at Obic) 6-9 OT[9]
Nobuyoshi Araki
2017
West
1st
9
0
0
Won quarterfinals match (All Mitsubishi) 20-3 Lost semifinals match (IBM) 24-31
Benjamin Anderson (MVP)
Nobuyoshi Araki
2018
West
1st
8
1
0
Won quarterfinals match (Tokyo Gas) 45-0 Lost semifinals match (IBM) 17-24
Nobuyoshi Araki
2019
X1 Super
3rd
5
3
0
Won semifinals match (Obic) 24-14 Lost Japan X Bowl XXXIII (at Fujitsu) 26-28
Nobuyoshi Araki
2020
X1 Super
N/A
1
1
0
Lost semifinals tournament match (Obic) 35-34
Nobuyoshi Araki
2021
X1 Super
1st
6
0
0
Won semifinals match (IBM) 38-31 Lost 75th Rice Bowl Championship (Fujitsu) 18-24
Jaboree Williams (MVP)
Nobuyoshi Araki
2022
X1 Super Div. A
1st
7
0
0
Won quarterfinals match (Asahi Soft Drinks) 38-28 Won semifinals match (Obic) 30-10 Lost 76th Rice Bowl Championship (Fujitsu) 21-29
Jaylon Henderson (ROY)
Nobuyoshi Araki
2023
X1 Super Div. A
1st
7
0
1
Won quarterfinals match (Asahi Beer) 27-0 Won semifinals match (IBM) 47-23 Lost 77th Rice Bowl Championship (Fujitsu) 10-16
Nobuyoshi Araki
Total
191
22
1
(1997–2023, includes only regular season)
34
22
0
(1997–2023, includes only playoffs)
225
44
1
(1997–2023, includes both regular season and playoffs)