How do Singapore Pools make money for themselves?

singapore poolA Singapore Pools Account allows you to place sports bets on. You can place pre-match sports bets, up till sales close, before the start of the event, as well as live sports bets while210 Middle Road, #01-01, Singapore Pools Building, Singapore 188994 Mondays to Fridays, 8am - 5pm, excluding Public Holidays 6216 8168 - Main Mondays to Fridays, 8am - 5pm,