Buy stock in teams based on their current rating. Wins make the price go up, losses make it go down. Easy, right?! In addition to making the value of a team's stock go up, wins will also trigger a dividend payment. For example, say you own 10 shares of Cloud9. Cloud9 defeats TSM and the stock price increases by $100. Not only will the value of your Cloud9 stock go up by $1,000 but you'll also receive an extra $1,000 in cash (that you can use to purchase more Cloud9 stock!).
If your total portfolio value drops below $100,000 you can reset back to $100,000 (when the market is open). WARNING! This will remove all of your stock!