In NBA series, locations swap after the first two games. Does the new home team — the lower-seeded team in the series — have an edge in these games due to returning home? Not really:
In fact, it seems the public is really overrating this idea lately, as it's been quite unprofitable to bet those teams against the spread (ATS) in recent years:
Since 2008, blindly betting those home teams in Game 3 would have resulted in a net $1,511 loss on $100 per bet. Not great.
That said, it has been profitable over time to bet those teams on the first-half spread: They've gone 129-85-7 (60.3%) ATS, good for a 12.2% Return on Investment.
If those teams have lost each of the first two games, they are even more valuable:
Those teams have hit at a 67.2% rate historically, good for a 28.4% ROI! It's been consistently profitable over time, too. In fact, they've gone a ridiculous 27-6 ATS since 2015.
But let's not stop there.
A lot of these teams are actually getting plus-money odds on the first-half moneyline, meaning it has been very profitable to bet them in that regard in Game 3s:
If those teams are down 0-2 in the series, they're 41-14, good for a stupid 37.1% ROI. They've won the first half by an average of 3.98 points. First-half dogs in this situation have gone 19-9 for a 45.5% ROI!
Sheesh, that's some value. Of course, there's a big question of whether bookmakers are really adjusting for this currently. For example, the Blazers in Game 3 are -2.5 for both the full game and first-half spread. It's certainly possible this trend starts to turn around this season with bookmakers aggressively adjusting.
And to try to be fully transparent, I posted this on Twitter a couple weeks ago when I first ran this article:
For full transparency on this piece, I compiled last couple years of teams down 0-2 and their spreads in 1H vs. full game. Have crushed, but you can determine yourself whether bookmakers are adjusting even more this year. https://t.co/ZxLgROjXQ2pic.twitter.com/mPgIAqbwo9
— Bryan Mears (@bryan_mears) April 19, 2019
The Blazers currently match for Game 3 on Saturday, and the Raptors could on Sunday if they lose Game 2 to the Bucks tonight.