For the first bout, between Hozumi Hasegawa (33-4, 15) and IBF Super Bantamweight champion Kiko Martinez (30-4, 22), we saw Hasegawa have a slight advantage. The Japanese fighter weighed in exactly at 122lbs, dead on the limit. Martinez however weighed in at 121lbs, a lb inside the weight limit.
For Hasegawa this was his lightest weight in 4 years, the last time he was lighter was his loss to Fernando Montiel in 2010. As for Martinez this was the exact same weight he weighed in at for his loss, last year, to Carl Frampton and is marginally lighter than he has been for his last 3 bouts.
Although both men have made weight today the IBF also has a second weigh in tomorrow morning and both men will need to be less than 132lbs at 8AM Tokyo time tomorrow morning. If Martinez is over that weight he'll be stripped and if Hasegawa is over that weight he'll be unable to win the title
For Yamanaka this is the 8th straight time he has been bang on the weight. The last time Yamanaka was "off" the 118lb weight was when he fought Jose Silveira back in October 2010. As for Jamoye this was, marginally, his lightest weight in 2 years, since he fought Miguel Aguilar in 2012. Incidentally Jamoye was exactly the same weight in loss to Leo Santa Cruz back in March 2011, his only stoppage loss.
(Images courtesy of boxingnews.jp. The top is Hasegawa and Martinez whilst the bottom is Yamanaka and Jamoye with all 4 men posing after their weigh ins earlier today)