Why are you asking for math geeks? Do you mean those top 1% who know well the math that is required to understand exactly how I Pods work? Why them? They are busy working on things that stupid people want but have no hope of understanding. Don't know if it's easier that way though. If you want to do the calculation starting from the probability of each permutation which is 1/52*1/51*1/50*1/49*1/48 you multiply by 4 due the possible suits, by 10 = C(5,2) since you can have any 2 of the possible holecards, by 2 since your holecards will appear in 2 ways from right to left and finally by 6 due to the number of ways the flop cards can be ordered from right to left. The chance to flop a RF in any order is 120 times that as said in previous posts. But isn't this observation a little result oriented? This is correct if you 'assign' the direction from right to left on your cards and the flop. Seems odd when he could have checked for free. When the flop came down I checked and the only other player folded without even checking. One player had raised preflop and I called. This was on FT at the end of a long tourney. This one the cards also came out in order. I have actually flopped 2 in my limited poker career. Here is a royal I flopped not so long ago.