In 2013, Total Rewards started a daily Tier Credit Bonuses program which gives you additional Tier Credits for earning certain amounts of Tier Credits in a single casino/gaming day (typically a 24 hour period between 6:00am one day and 5:59am the following morning. Check the Total Rewards desk for the hours at your casino just to be safe).

• If you earn 500 Tier Credits in one day, you receive 125 bonus Tier Credits
• If you earn 1000 Tier Credits in one day, you receive 1000 bonus Tier Credits
• If you earn 2500 Tier Credits in one day, you receive 5000 bonus Tier Credits
• If you earn 5000 Tier Credits in one day, you receive 10,000 bonus Tier Credits
  Only the highest bonus achieved is awarded.

Earning 2500 Tier Credits plus the 5000 bonus Tier Credits is enough to give you Platinum status in a single day. Earning  5000 Tier Credits plus the 10,000 bonus Tier Credits is enough to give you Diamond status in a single day.