Online Poker Rankings is a good site to check out sometimes when you want a general idea of an opponent. Sometimes I'm heads up and a person will talk about a chop. I'll usually look them up and if they are a good player I'll consider it. If they've luckboxed their way then I'll take my chances. Anyway, one huge flow with OPR is calcuating ROI's if you play rebuys.....
Example.
I've played the stars $55 PLO Rebuy 10 times. I've bought in from 1150$ and won 1200$. This is a minimal positive ROI (4%?). Now the problem with OPR in calculating the ROI is they take the number of buyin/addons and divide by entrants and come up with an average buy in. The average buy in for this tourn is about 230$. So 230$ x my entries is 2300 - my winnings (1200) and I come out to -900 for a -30/40% ROI. Quite far off from the true ROI of 4% (BTW, its only a 10 tourney size sample, so it's not long term ROI but just the actual ROI for 10 tourns. Hopefully it will be up to my normal PLO Rebuy average of 50% ROI once I get a large enough sample size.) OPR let's u check winnings without estimated rebuy/addons but them again that would not be accurate either, because we all rebuy or add on. Same can even be said for bounty tournaments where you are getting 10-25% of your buy in back. Anyway, that is why I keep my own MS Excel spread sheet. Everthing is accurate and for each tournament I play I have my total profit/number of entries/average profit per entry. This is to let me determine which tournaments I should be playing and which I need to let go of. I really need to get a good sample in though (200 MTTS?) before I can make a decent decision. If anyone is interested in seeing the spreadsheet and editing it for themselves let me know.
GL all, and GL in FTOPS