I am certain that it's popular here in the Philippines calling it "Ending" and it's more popular when it comes to basketball.
Nitrogensports offers a similar type of prediction/lottery in their blog page called
Nitro Squares where you predict the last digit of the total scores in NFL or certain events.
Yeah, I've seen this on Nitrogensports but not that fan as it's like you're up into much bigger odds here but when luck do side on you it will reap the best reward 90x fold on your bet (90x or more as there are still a fee for the house or much less if you bet more than one). I think it's much better online compare to local (well, just on our area) as they collect much like 10% of it and even others ask for a "balato" from your winnings.
And also, any ideas or strategy/tricks/advices to maximize profits and minimise risks by playing this kind of gamble?
I don't think these two will be met because if you want to minimize risks you either select 50% or more of the available numbers but it still has great risks on your side if the numbers you selected didn't win (the hindrance here is if there's a maximum number to bet on for every player). And the only thing to maximize profit here was to select a few available numbers but that still involves huge risk as there's a huge chance your number may not be selected since you're up against a huge available number that may be selected by other bettors. Maybe sticking to your number as always will do the trick.