For style, lose the conversational tone. Phrasing like "just remember I told you so," undermines your authority as the columnist. You and the reader are not two buddies chattin' fights on the stoop; readers can get that anywhere. They can get that on the stoop. You're the expert, and they're coming to you to get insightful, entertaining perspectives on boxing. Use the appropriate phrasing.
For content, you've set up a straw man argument here.
Straw man - Wikipedia, the free encyclopedia
Taylor was favored in the first fight, knocked Pavlik down in the first fight, and will most likely be favored going into the second fight. To act like it's a revolutionary position to believe that Taylor will win insults your readers' intelligence; it presupposes that they don't know anything about the subject that you want to communicate with them about. Frankly, it's insulting, and I think if you read somebody doing it you wouldn't continue to read that somebody for long.
To have a good column, you don't need to have inside information or revolutionary ideas. Look at Bill Simmons. He's the most popular sports columnist alive, and he doesn't have access or insight that anyone else doesn't have. He just has a unique perspective and a strong voice.
Also, he's online. So I know you can find/read him. Think about if your boxing coach told you to go run five miles. What would he say if you came in and said they don't have road work where you live? In my initial response to your writing (which I undertook because we are the only two motherfuckers on this site remotely interested in fightsport) I said:
1.) Maybe lay off the novel and try short stories.
2.) also suggested some good boxing-related short stories by other writers to try.
Since that time you posted additional work on your novel and said you hadn't bothered to read any of the stuff.
So either you're coming on here just to get people to read your stuff and you aren't really interested in getting better/improving/feedback/critiques, or you find my advice in particular to not be useful and don't take any of my suggestions.
Either way, continuing to comment would seem to be a waste of our mutual time.
Best of luck with your work.