Ribbs famously qualified for the Indianapolis 500 in 1991, though his efforts were hampered by a blown engine, finishing 32nd in a field of 33 racers. He fared somewhat better when he returned in 1993, where he finished 23rd. Ribbs then spent some time in Formula Ford in Europe and NASCAR, though he hit his stride in Trans Am. He collected five wins during his time in that series. At this point, it's unclear whether Ribbs will continue in IndyCar after the Baltimore race.
For some background on Ribbs and to catch up with what he's been up to, check out an interview conducted by Indycar earlier this year by clicking on the jump.