I don't bet on sports either, but this looks like a cool site that would helpful for people that do.

While looking over the site, I noticed a few grammar mistakes and writing style suggestions. Some of them are pretty nit-picky, but that's what you're looking for, right?

On the "Tutorials - Analyzing Your Bets" page:

1. "When you're in a betting slump, you'll be able to look at your graph and see just how far you've come since you've started recording your bets."
The end should read "just how far you've come since you started recording".

2. "The graph will keep yourself from tilting in the middle of a bad run, ensuring that you continue practicing sound money management and making sure that you don't _ everything."
There seems to be a word missing here before the word 'everything' (the word 'lose' perhaps?).

3. In the same sentence, it should say "The graph will keep you from tilting", not 'yourself'.

On the "Tutorials - Entering Your Bets" page:

4. "So you've made your bet with your sportsbook already and now want to go and record it here at SageStats."
"want to go and record" is needlessly wordy and might sound better as just "want to record".

On the "Recording Your Bets" page:

5. "Just got done placing your bets? After you finish making your bets at your sportsbook, come here and record your bets here at SageStats!"
Grammatically, the first occurrence of the word 'here' should be removed. So it should read "come and record your bets here". Stylistically, it might be better to be even more terse and get rid of the "come and" part completely, making the highlighted fragment just say "record your bets here".

6. In the same snippet, the word "bets" shows up 3 times in two short sentences (which makes it sound a little awkward), and the first clause of the second sentence says almost the same thing as the first sentence. You might want to consider just rewriting this part altogether.