He basically doubled his buy in within those 30 hands, and I'm ashamed to say I wasn't paying attention so I have no idea how that went down. The only read I had was he was on the tighter side, so I don't think he would flat a 3b OOP with a lot of hands that really smash this flop; 56, 67, 78, 89. So a lot of his calling range with worse range are over pairs, which would call 1/2 or 2/3 just the same. I've been studying balance lately, and at the time I thought I would like to be able to make this bet with AK, and be able to bluff certain turn cards which would be easier with 1/2 flop bet instead of 2/3. I think I was just leveling myself, there's no reason to have your whole range perfectly balanced at anonymous Bovada tables.

Edit: I started typing my reply before Andrews post posted.

In my experience with Bovada river overbets are rarely a bluff, however they are also almost always exactly that nuts.  Not nutted hands, the true nuts (or at the very least a full house on an otherwise really wet board).  One particularly painful hand comes to mind where I there was 2 possible straight flush combos and I had the ace high flush, and I knew I was beat but couldn't lay it down (I'm not given this villian credit for 78; even if he did flat OOP, which I don't think he would do, he would c/r the flop a lot with it).  If he had a 7 that is not the size would make it to get value out of AA or KK.  On Bovada they almost always quickly mash the pot button.  I'm not saying I would fold to the smaller pot size bet, I'm just saying I wouldn't feel as good about it.  So discounting a 7 a little bit, and the fact that he doesn't have the True Nuts, I decided AAx was the only single pair that I'm getting to the river and calling with.  

Results:  I spend about 90% of my time bank typing in the chat about how much of a sicko he was, then made the call.  He turns over TT.  I was chatting with him and another player at the table and they were like “I/he could easily have a set or 2P” and I told them “there's no way sets or 2P make that bet on that board”.  That bet reps the nuts which he can't have.  I told them I'm not sure it was a good call are not, and I'm still unsure.

I don't have a lot of 100nl hand, but I do oodles of 50nl hands.  I think I'll do some poker tracker reports and see if I can confirm whether my intuition about river pot size bets (nutted hands) and overbets (true nuts) are correct and see if they still hold up in 3b pots.  I won't be able to get to them this week as I have family in town.