Thanks for explaining and wish u a successful season
No, 21% means that is a 21% gained compared with the starting bank.
Starting bank is 100%
Unit sizes are much variable as you can see, and can be anywhere between 0.2% -3% to "win" on any play.
But considering the record of 142 W - 93 L so far, and that the average odds were not worst than -125, if betting "to win" 2.5% of bank on any play, right now that would mean 64.37% gain on the bankroll (25.75 units).
I have no idea what may be the average odds, but I don't think they are pretty far from -125...
So considering the results until now, the conclusion would be that I would be doing way better if just simply wager every play to win 2.5% of the starting bank. But it's a long season, and according to my backtesting the win ratio so far is better that what that should be.
It's at 60.42% right now... no way that's going to be near that high over the long run with so many plays each day.
(But I would be happy if I'm wrong!)