No he said that Bm would fall by Kid hands in chapter 1039 and this legit happen, Kid got the last hit, Pantheos even add that, what you asked is the confirmation, who probably got 1040, but based on Panth words she got defeated this chapter, Kid hit her and send her out.
Here all what Pantheos wrote, legit happen 1on1:
My bet is about 1039 and Kid doing the final blow. I went all in, made some high risk statement. Lets see how it goes.
Kid will have the final blow. He is the last one touching her before beating her.
I am not hiding behind semantics. I told clear: KID has to make the final blow, so Linlin is beaten, done and Kid won the fight.
Literally all what he wrote happen, let not search for excuses, this man offer to wear avas over 137 people xD.
He deserve the W, clearly won it.