Unh, I'm not familiar with the rating system, but I can put up a BL-type table without actual scoring.
If we would award long games, we should count all game's lenghts, which would not worth it. But gratz for your endurance. ^^
*under the assumption BL was meant to be WL and not Boys Love*
Being familiar with it doesn't mean nothing, it's a simple calculation a spreadsheet can handle easily (I think I have one somewhere I used for random stuff, where you simply imput the rating of the winner and the rating of the loser). But, well, not like it matters.