The simplest and easiest method, one that wouldn't require new graphics or mess with the displayability of the scoreboard, would be to prefix each name shown there with a few characters, such as "X- " shown before the name, with X being a 1-2 letter abreviation of the class: R, ER, < (Or possibly S), A, EA, MG, AT, E (Possibly Eng), SL, TL.