If you believe you're skilled at sports betting, enough to pick the single best game daily.. could you actually discipline yourself to bet just once per day for an entire season to prove your profitability?
Personally, I'd struggle. The urge for more action would get to me. Even starting with one game, a loss would leave me feeling unsatisfied, tempted to chase and recover immediately rather than wait for the next day.
I would do it on a separate account just to test my ability. Though, if I really have the skill to bet accurately on the winning team in sports betting, limiting myself to just one bet per day would be really difficult. I will not limit myself to just one game, I would definitely bet on more games for higher profit. And I'm sure everyone will do the same as mine if they are capable of it. Greed is always present in our human nature so when there is a huge chance to grab something we want, we will always maximize it to full intent.