Also looking at the timeline Ibeabuchi fought from 1994-1999 and he's currently 37-38 years old. In 1999 Wladimir Klitschko was 24 (22 KO)-1 and weighed in circa 225-235. The issue is Wlad was fighting bums at that point in time and just getting used to being a pro having turned pro in 1996.

If we're talking "prime vs prime" then I see no reason to believe why Wlad would lose to Ibeabuchi. Ike wouldn't out muscle him the way he did Byrd, and he sure as fuck wouldn't be in close like he was vs David 'T-Rex Arms' Tua....like everyone else, Wlad would have him at the end of the jab. Sure Ike would pressure but getting blasted with power punches, being tied up, and then trying to cut off the ring only to eat more punches and get tied up again would be a new experience for Ike and I doubt he'd take it well.