5 fights in 5 years. Unfortunately, Haye has ultimately proven to be a disappointment at Heavyweight in the ring.
2009 - Nikolay Valuev
2010 - John Ruiz, Audley Harrison.
2011 - Wladimir Klitschko
2012 - Dereck Chisora
2013 - --------

Coming out of the gate at Heavyweight in late 2008, it looked like he'd infuse some real action and public interest in an otherwise uninteresting Heavyweight scene. Alas, that hasn't turned out to be the case.

Haye ain't the only inactive top guy though, mayweather too and several others, you'd think top pro fighters would try to make the most of their athletic primes and cash in as much as they can while they're physically able to. Most guys only get about 5 years where they put it all together...