# How to calculate my sample size to establish my real-WR?

I've been tracking for a period my hour rate and I want to know how much data I've to collect in order to establish my winnings per hour. I've been searching online and when it comes to getting a handle on real-WR potential 50k hands (1600 hours) is a starting point, 100k (3200 hours) is pretty good, and 500k+ (16200 hours+) is solid. But I'm not sure about this and I would like to calculate it myself. Any help?

• rule of thumb is the more hands you have played the more accurate your real-WR calculation will be. You can calculate it with any number of hands but smaller sample sizes will be less accurate. The examples you gave in the question seem good to me, i am not sure if there is a calculation that will tell you how many hands is enough. Jan 25, 2020 at 19:49
• Normally there should be some way to calculate the sample size, some that should be representative enough to get my real-WR but it might require advance statics knowledge that I certainly don't have yet. Thanks anyway! Jan 27, 2020 at 13:38
• this may be a better question for mathematics or statistics stack exchange, I would be interested to hear what they have to say. Jan 27, 2020 at 20:03
• I agree. I'll post it on my mathematics account to see what they answer! Jan 29, 2020 at 11:27