What are poker blinds? Poker blind structure tips, sample tournament blind structure chart, calculate blind structure etc. BLIND STRUCTURE level. BlIND. ANTe. 1. 25 - 2. 50 - 3. 75 - 4. - 5. - 6. - 7. - 8. - 9. Blind Valet - Blind Structure Calculator and Poker Tournament Clock. Small tournaments 10 players should last about an hour. This method is most accurate for smaller one or two table tourneys. While there are no official chip color and value standards, here are some commonly observed values. Usually, the more players in a tournament, the longer it will rift codes. Most tournament blind structures are set up so that they reward players who play intelligent, patient poker at the beginning of the tournament when there are no prize incentives to do so.