He is a former 2004 S-cup world tournament finalist and WMC Intercontinental Super Welterweight champion.

He defeated Satoru Suzuki via KO (spinning back fist) in the first round at Shootboxing 2012 - Act 4 on September 17, 2012 in Tokyo, Japan to qualify for the 2012 S-Cup.

[2] After a majority decision (27-27, 28-27, 28-27) win over Gesias Cavalcante at the quarter-final stage, he was knocked out by the eventual tournament winner Andy Souwer in the first round of their semi-finals bout.

[5][6] He defeated Len Genji by unanimous decision at Shoot Boxing 2013 - Act 4 on June 23, 2013.

[7][8][9] Shishido knocked out Moody Rawai in round two to retain his Shootboxing Asia-Pacific title on August 20, 2013 at Shoot Boxing in Fukushima 2013.