Just checked out the NBA bet builder and I can only say, classic stake.
They cut a big part of the original odds, MUCH higher than on other sites.
The bets I have tried ( over on points and rebounds for Al Horford ) , bet builder odds 2,94 while when you "would" bet and combine them normal (what not possible, I know) its 3,65 .
Ok they have to cut something but this big is just robbery.
They aren't independent events so you can't really compare them as if they are. There should be scenarios where the bet builder odds are actually greater than if it were a parlay of independent events.
In your example, if a player gets more than X rebounds, he's obviously more likely to score more than X points.
If you were to bet a player gets more than X rebounds and scores 0 points, you should see a better price than the parlay you can't bet would offer.
Say what? You have no clue wtf you are talking about, as usual.
I showed how the odds are much smaller when you use bet builder than when they actually are.
And what is this crap: "If you were to bet a player gets more than X rebounds and scores 0 points, you should see a better price than the parlay you can't bet would offer." even supposed to mean. Just shut up and dont try to talk about stuff you have 0 clue about u clown.
The reason you aren't allowed to parlay bets on the same match is because they aren't independent events. One outcome will influence the chances of the other happening.
With independent events, like the outcome of two separate matches, you just multiply the two to figure out the chances of both happening.
Here's a very simple example:
If Team A has a 50% chance to beat Team B and Team C has a 50% chance to beat Team D. .5 * .5 = .25, so there's a 25% chance that both Team A and Team C will win.
Now let's say a team has a 50% chance to be winning at halftime, and a 50% chance to win the match. You can't just do the same math and figure that there's a 25% chance the team will be winning at half time and win the match since if they're winning at half time they're more likely to win the match. The actual number should be somewhere between 26% and 49% depending on the nature of the game and players.
And it goes both way. If you bet on a team to be losing at the half and then go on to win the game, the chances of that happening should be less than the 25% (in most cases).
In your example, with total points and total rebounds, it's the same thing as the first example. The more rebounds a player makes, the more points they are likely to score. They aren't independent events.