Rufebert's PokerRoom: The Sharkscope Measure

For those of you unfamiliar with Sharkscope, it's an online poker stat-tracking web site that accounts for SNG and MTT results. Players can type in their (or anyone's) online poker screen name and Sharkscope will display records of all of the games they’ve played to date, and their profitability. When a player's screen name is entered, Sharkscope returns the following data about them:

Number of Games Played
Average Profit
Average Stake
Average Return on Investment (ROI)
Total Profit
Overall Ability (on a scale of 0 to 100)

I used Sharkscope frequently back when I was "grinding" on PokerRoom, as it was a valuable tool to see if my SNG or MTT opponents were (in general) winning or losing players. Anyway, here are my Sharkscope results when you search 'rufebert' under the PokerRoom filter:

Username	Games Played	Av. Profit	Av. Stake	Av. ROI	Total Profit	Form	Ability /100	Network	Filter
rufebert	214	$7	$61	44%	$1,588	Tilt	89	Ongame	Pokerroom
rufebert	72	$51	$69	194%	$3,698	-	93	Ongame	Sch. Only Pokerroom
rufebert	142	-$15	$57	-31%	-$2,110	Tilt	63	Ongame	SNG Only Pokerroom

My first observation is that the total number of Games Played is inaccurate, as I played way more than 214 games overall. I know that Sharkscope began tracking different poker sites at different times, but I am unsure what month/year they started and stopped tracking PokerRoom tournaments. Despite the missing data, the results aren't completely inaccurate. I already mentioned in a previous blog that I did much better in MTTs than I did in SNGs, and the following backs up that statement - MTTs (194% ROI - 93/100 Ability) vs. SNGs (-31% ROI - 63/100 Ability). I wouldn't say that I was a bad SNG player, but I definitely could have been more consistent. Overall, Sharkscope gave me a shark icon (you can't see it via the results posted in my blog but can when you do the actual search) and a 89/100 Ability rating via whatever ridiculous calculation/formula they use to determine the number. I suppose this means I have some skill when it comes to tournament play, but again, I cannot fully support that without accounting for all of the data.

(Anyone know of a comprehensive poker database that dates back to 2003 and covers sites that no longer exist?)

Furthermore, the following graphs measure my Total Profit/Number of Games Played, ROI%/Entry Fee, and Number of Games Played/Entry Fee, respectively.