The 4 champions mentioned above have all set their sites on bigger and better things. Oba and Omori have fallen short in eliminators, Iwasa lost in a world title fight whilst Masuda recently stated his intent to chase a world title.
One fighter who has tried to win world titles but now finds himself back the domestic scene is veteran Ryo Akaho (29-2-2, 19), who looks to win the vacant Japanese Bantamweight title as he takes on Yushi Tanaka (19-1-3, 13), himself challenging for this title for the second time. For both men this will be seen as a must win, Akaho needing a win to keep alive his dreams of getting another world title fight and Tanaka looking to prove that he deserves to be title level fighter.
Of the two men it's Akaho who is more well known. The Yokohama Hikari fighter debuted back in 2005 and moved through the ranks relatively slowly before getting a shot at the Japanese Super Flyweight title in late 2009. In that title shot he fought to a draw with Daigo Nakahiro but remained in the title mix and won the OPBF Super Flyweight title 17 months later. As the OPBF champion Akaho would defend the title 3 times, scoring notable wins over Toyoto Shiraishi and Yohei Tobe, before getting his first world title bout.
In Akaho's first world title shot he came up short against Yota Sato, the then WBC Super Flyweight champion. That was to be Akaho's final bout at 115lbs before he moved up to Bantamweight and slowly moved towards a second world title bout, which came in August 2015 when he took on Pungluang Sor Singyu for the vacant WBO Bantamweight title. Sadly for Akaho he was bullied in round 2 by Pungluang who knocked him out in controversial fashion. Since that loss Akaho hasn't looked like a world class fighter, struggling past Shiraishi in a rematch and only narrowly over-coming Hiroaki Teshigawara last year, along with scoring a blow out of a terrible Thai foe.
In the ring Akaho is a strong and tough fighter, but one who is relatively basic, a little crude and raw and lacks in terms of speed and isn't the puncher his record may suggest. He can be out boxed, he can be out slugged and he can be out fought, but it takes a good fighter to do any of those things and he has the rugged toughness to make anyone below world level work for a win.
As mentioned this will be Tanaka's second shot at a Japanese title, and his chance to help add to the growing reputation of the Hatanaka gym which already features world champion Kosei Tanaka and Japanese Featherweight champion Shota Hayashi. His first shot at the title saw him being dominated, and stopped, by Kentaro Masuda a year ago. That was really Tanaka's only bout against a genuinely notable fighter in their prime and it showed that he was a long way from being Japanese title worthy. It is however worth nothing that Tanaka has held the WBC Youth Bantamweight title, winning that in July 2013 and making 3 defenses of the title.
Whilst Tanaka hasn't fought many good fights in their prime he has scored wins over Filipino journeyman Rey Laspinas, a good win, and a beyond shot Wandee Singwancha, who was well beyond his best and fighting significantly above his best fighting weight. Sadly much of his competition to date has been dire and lead to his record really not reflecting his skills. For example Tanaka isn't a big puncher, despite almost a 60% stoppage rate, and although he comes into this bout on a 3-0 (3) run following the loss to Masuda he's really not faced anyone to give him another gut check.
Stylistically there is little about Tanaka to be impressed by. He lacks the sensational skills and speed of Kosei Tanaka and the tenacity of Shota Hayashi. He's not terrible as such, but there is little about him that is actually impressive. He's just a very basic fighter who shouldn't really be getting a second shot so soon after being dominated in his previous shot. And with that in mind it'll be no surprise to hear that we're predicting a loss for Tanaka here, likely by stoppage in the middle rounds.