For some reason I can only go back to my last 500 posts. Anyway, here it is one last time.
In the NBA, Vegas usually (80%) of the time will get within 10 points of the ORIGINAL over/under. Doesn't work in NCAA or on sides, just NBA totals. So, this means that if you have a game where the total is 210, and at half time the score is 42-33, and the second half line is 105, for example.......that means that the 1st half total is 75 and adding the 105 for the second half only gets you to 180, which is still 30 points off of the original over/under, so you would take the OVER here. Works the same way in reverse. The over/under is 210, and at halftime the score is 65-60, this is 125, and the second half over under is 100, to make it easy......this is 225 and 15 point off of the original o/u, here you would take the UNDER 2nd half. You're not going to get a play for EVERY single game, and make sure you take other things into consideration as well. Ex. If the over / under opened at 202, and moved up all day and closed at 205, and the score is REALLY low the first half, this is a great one to take the OVER second half. Also, make sure no key players got injured in the first half. I used this sytem last year a ton, and it hit at about 63%.
RJ, I used this system for a brief period last season and caught it when it was working...made a lot of money for a brief period. Then it started regressing to the mean. So I went to donbest archives and checked how it did the previous year. I didn't get all the way through the season...got tired of going through all the files. But for a significant portion of the 2003-2004 season that I backtested it was hitting about 49%. So I'm not so sure that over the long haul the system would hold up.
RJ, I used this system for a brief period last season and caught it when it was working...made a lot of money for a brief period. Then it started regressing to the mean. So I went to donbest archives and checked how it did the previous year. I didn't get all the way through the season...got tired of going through all the files. But for a significant portion of the 2003-2004 season that I backtested it was hitting about 49%. So I'm not so sure that over the long haul the system would hold up.
garth, thanks for looking it up. I don't think donbest archives shows what the 2nd half line was, does it?
also, like i said, you have to use disgression too. like if the game is trending up before the start, the over/under i mean, and it is very low in the 1st half, and the difference is like 20 for the 2nd half, you will pound the 2nd half over.
Yes, they do show 2d half lines. I'll have to look up the navigation of how you get there again. It was a while since I did that project. I'll get back with you.
RJ,
From the donbest site, go to scoreboard, NBA, and "choose date". You can navigate to each date, then click on "summary" for any game and it will show closing game lines and closing halftime lines along with the scores by quarter.
The part about "trending up or down" before the half is a component of the system I didn't use and obviously didn't include that in the backtest I did. There's no archival data on such in-game trends. You'd have to be watching the game to pick up those data, I guess.
The part about "trending up or down" before the half is a component of the system I didn't use and obviously didn't include that in the backtest I did. There's no archival data on such in-game trends. You'd have to be watching the game to pick up those data, I guess.
like i said garth, i don't play it on EVERY occassion, i pick and choose ones that are really good. you'll see a lot of times where the o/u for the 2nd half will be off by like 20 or 30 to the original total, and these are ones that are great.
i know a lot of us made a lot of money over the last 2 years on it.
you can take them or not. thanks for looking that up though.
RJ,
I think the arbitrary cutoff number I was using was 16. that is, if the first half score and second half total were more than 16 points off the original game total I went the other way. If I moved that number to 20 the winning percentage would probably be higher. You're absolutely right. If it's 30 off that would be a really strong play. I didn't see too many of those though. Good luck this season.
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