I agree with LSP and LadyBet, but both offer advice to long-term winning handicappers who already know this stuff. For 99% of people who bet on sports, this topic is like reading the last chapter of a book first.
Most people think betting on sports means trying to pick which team will win the game or cover the spread. That's completely wrong. A handicappers job is to identify the chance each team has of winning or covering and comparing that to the posted lines or spreads offered at sportsbooks. This means you will need to build math models using the data analytics for each particular sport, then have algorithms reduce all that data to a winning percentage for each team. Convert those percentages to money lines for comparing to posted lines at books. For point spreads, you will need to identify the change of covering various spreads for comparing to posted lines.
Notice none of this has anything to do with who you think is going to win the game. How much you know about a particular sport isn't going to help. Having played the sport in college or even professionally isn't going to help. In fact, the worst handicappers of all time are guys who played professional sports. See Pete Rose for example. Who knew more about baseball than him? But he lost a ton betting on baseball because he thought he just had to pick who he thought was going to win.
So what's all this have to do with bankroll management? Well 99% of people are going to lose their entire bankroll betting on sports, so the best advice to them is to bet as little as possible. Best bet would be zero dollars. Kelly in any form will only cause these people to lose their bankroll even faster.
If you choose to follow a proven long-term winner, I agree with LadyBet that you should follow his money management precisely.
Here's a freebie for today: 707 Charlotte +4