10 straight flushes 4 royal flushes
 

Hrm, does anyone know the probability of having this within 45k hands? Probably pretty hard to figure out. But this [censored] seems pretty weird...

Re: 10 straight flushes 4 royal flushes
 

100%

Re: 10 straight flushes 4 royal flushes
 

I assume you're talking about hold'em or other seven-card game and a single player.

You expect to get 14 straight flushes in 45,000 hands, the chance of seeing only 10 or less about 18%.

One out of every 9.6 straight flushes is a royal flush. Given you have 10 straight flushes, getting four royal flushes will happen 1.5% of the time.

This assumes you see every hand to showdown. That's inflates the numbers because your first two or three cards will often be unpromising.