I made this change, as you suggested on my talk page.  however, when I checked 2009–10 Premier League#League table, it shows 18 and below are marked for relegation and no clubs marked for promotion, so should it be p=0 and r=18?  feel free to correct it as you see fit.  It appears the original problem that brought me to that page was that the Template:Fb rbr position was being called with a position of 21 for round 13, which makes no sense if there are only 20 clubs?  I will change it back to Template:Fb rbr position and try to figure out the position for week 13.