able ", ▁in ▁which ▁he ▁took ▁a ▁b ump ▁onto ▁a ▁light ▁t ube ▁board ▁which ▁ri pped ▁open ▁his ▁left ▁el bow , ▁expos ing ▁b one . ▁In ▁ 2 0 0 6 ▁he ▁won ▁the ▁first - ever ▁I WA ▁East ▁Coast ▁Masters ▁of ▁P ain ▁after ▁defe ating ▁T oby ▁Klein , ▁Mad ▁Man ▁P ondo ▁and ▁J . ▁C . ▁Ba iley . ▁ ▁Kas ai ▁has ▁participated ▁five ▁times ▁in ▁an ▁extremely ▁blo ody ▁" R az or ▁Death match "; ▁a ▁hard core ▁match ▁where ▁bo ards ▁are ▁fitted ▁with ▁many ▁raz or ▁bl ades . ▁The ▁first ▁of ▁these ▁death matches ▁was ▁held ▁in ▁ 2 0 0 5 ▁with ▁J aki ▁Num az awa , ▁in ▁which ▁Jun ▁took ▁a ▁power b omb ▁onto ▁the ▁raz or ▁bl aded ▁board . ▁In ▁the ▁second ▁one , ▁held ▁in ▁ 2 0 0 8 , ▁Kas ai ' s ▁match ▁was ▁against ▁the ▁American ▁wrest ler ▁M AS AD A . ▁ ▁On ▁November ▁ 2 0 , ▁ 2 0 0 9 , ▁he ▁defeated ▁Ry u ji ▁I to ▁in ▁another ▁raz or ▁match ▁after ▁a ▁double ▁under hook ▁face b uster ▁on ▁a ▁c act us . ▁ ▁The ▁fourth ▁time ▁was ▁on ▁April ▁ 5 , ▁ 2 0 1 0 ▁Kas ai ▁competed ▁in ▁a ▁Barb wire ▁Tre aty ▁Death ▁Match ▁that ▁p itted ▁Team ▁C Z W ▁( J un ▁Kas ai , ▁DJ ▁Hy de , ▁and ▁Nick