For every winning share you own, you'll win mBTC10, no limit on the number of shares you can buy, and you fix the odds you're comfortable with.
For example for the game San Francisco 49ers at Seattle Seahawks on Sept 16th:
- If you think the 49ers have high chances to win, you can buy 49ers shares at mBTC6 a share (just an example, you can enter anything between 0 and mBTC10). If they do win, you'll receive 10 - 6 = mBTC4 per share. If you bought 1000 shares, it means a BTC4 profit!
- If you think the Seahwaks could win, but you're not too confident, you can buy seahawks shares at mBTC3 a share, then winning nBTC7 per share if they really win.
- You also have the option to buy early, and then re-sell your shares for a higher price sooner to the date. Maybe the 49ers shares you bought at mBTC6 are now traded at a higher price, let say mBTC8.5, (as people might now think there are much higher chances for them to win), meaning you can re-sell them and win 8.5 - 6 = mBTC1.5 per share (or BTC1.5 for your 1000 shares) without taking any risk on which team will actually win.
