The SportsRatings Heavyweight Boxing Top 100 is determined by formula; therefore, only the algorithm itself can be said to bias the results. Its main "bias" is that the degrees of win or loss does not matter; winning by a first round KO or split decision is the same in its eyes.
But the various boxing organizations determine their rankings by a number of factors, some of which are political. For example, most organizations fail to list any beltholder from the other organizations. This leads to some interesting omissions, such as Wladimir Klitschko being absent from the WBA or WBC top 15.
There are a number of other interesting questions concerning the SportsRatings rankings as contrasted to the belt rankings.
Why is Ruslan Chagaev ranked #2 by SportsRatings?
Chagaev is being criticized lately for not fighting much. He's suffered several injuries, including a Hepititis B infection that cancelled his fight with Sultan Ibragimov last year, laryngitis which delayed his rematch with Nicolay Valuev, and finally a torn achilles' tendon which cancelled that fight for the foreseeable future. His last bout was a win over Matt Skelton in January, his only defense since beating Valuev for the WBA title in April of 2007.
Ruslan Chagaev is the WBA titleholder, while Samuel Peter holds the WBC title. Nearly everyone who ranks heavyweight boxers puts IBF/WBO beltholder Wladimir Klitschko #1. SportsRatings, Boxrec.com, Fightnews.com, and Ring Magazine all agree on this; yet the latter three put Samuel Peter at #2, one spot ahead of Chagaev. So, why does the SportsRatings algorithm put Chagaev ahead?
A look at Chagaev's record—apart from his recent woes and inactivity—tells the story. Chagaev has defeated four of this month's top 25 fighters, more than anyone else in the list (though Klitschko also has four after beating Tony Thompson). Samuel Peter, by contrast, has beaten only one fighter in the top 25, Oleg Maskaev.
Further, Chagaev has handed two top-25 boxers their only losses. He is the only fighter to beat #9 Vladimir Virchis, and the only one to defeat #4 Nicolay Valuev. Of other top fighters, only Klitschko (who beat #3 Sam Peter and #18 Sultan Ibragimov) can claim this.
With these several big wins, Chagaev gets a lot of points in the SportsRatings system, enough to put him at #2 well ahead of Sam Peter. But most of these fights were very close; Chagaev won mixed decisions over Valuev and Virchis, and a split decision over #14 John Ruiz. The fact that any of these fights could have gone the other way is one good reason most people put Peter ahead of Chagaev.
Why is Alex Dimitrenko ranked so high by the belt organizations?
Most boxing fans have never seen Alex Dimitrenko fight. Yet he is ranked—get this—#2 WBO, #3 IBF, #4 WBC, and #5 WBA. That's right, top five in all four organizations. And he'll likely be the #1 WBO contender now that Tony Thompson has lost.
Compare this to his rankings in non-belt ratings: At SportsRatings we have him at #15; BoxRec.com puts him #10; Fightnews.com he is #8; and Ring Magazine does not list him among the top ten heavyweights. So why do the belt organizations love him so?
Despite being undefeated, his record doesn't bear out a top five ranking; it's debatable as to whether anyone he's beaten is still a top 100 fighter (none our by our list). His last two wins, over Derrick Rossy and Timo Hoffman, are his most impressive wins.
The 6' 7', 250 pound Ukrainian is a prospect for sure, and having him in the top ten isn't unreasonable. Further, since the belt organizations don't list other champions, all contenders are moved up a couple of slots, pushing everyone up a couple slots (plus one again, because they essentially start counting at zero). But does he deserve to be ranked higher than Chris Arreola, another undefeated prospect who is ranked 9th, 10th, 7th, and 12th by the same belts than put Dimitrenko 2nd, 3rd, 4th, and 5th?
I don't believe so.
Why is David Haye #5 at the WBC?
Haye is moving up to the heavyweight division and is scheduled to fight in October. For about a week, it appeared that his opponent would be Oleg Maskaev; that rumor has been squelched. He continually talks about how he is going to beat Wlad Klitschko and rule the heavyweight division, but he won't get that fight immediately. He wants to start with a ranked fighter, though. But where should he himself be ranked at the moment?
Despite his change in weight class, the WBO still lists him as their cruiserweight titleholder. The WBC, however, has decided to immediately rank him at #5 as a heavyweight. This has been controversial, to say the least. For most, this is a very premature ranking, considering that he's only tested the waters once as a heavyweight, defeating Tomasz Bonin in the first round. Others believe that, as a dominant cruiserweight champ, he should be granted an immediate ranking among the heavies.
So far, Ring and Fightnews disagree, leaving Haye unranked, while Boxrec still lists him at cruiserweight. In the SportsRatings top 100, Haye is #72. He debuted at #65 after the Bonin win, floated up as high as #60, but has slipped since due to inactivity in the division. To be ranked higher by the system, he'll have to win some fights.
It's up to each organization to determine their own rankings, of course. The WBC may feel it's to their advantage to have Haye ranked high on their list, and perhaps there aren't many compelling heavyweights right now, but most would probably like to see Haye earn his ranking rather than be ushered in at such a high level. It took Evander Holyfield, for example, a long time to build his heavyweight resume up for a title shot.