Anyone know how to calculate Tier points for UTH, playing $25 ante?

I have made several trips to Vegas this year. I have split my play between MLife and CET. During these visits, I have earned Platinum at MLife, but my Tier Score with Total Rewards is only 2128. I play UTH 98% of the time and will run about $1500 through $25 and $100 slots, via one pull spins throughout the duration of each trip. I just feel like it is taking forever to make any kind of movement with my Total Rewards Tier Score.