Talking about the '84 Greco guys: Both did pretty well.
Blatnick defeated World Champ and 8x World/Olympic medalist Johansson of Sweden (who was actually caught doping in 84, losing the medal.)
Fraser defeated Frank Andersson, a three time world champ, who may have been a year or two past his prime. Fraser also had to beat Mike Houck, who won World gold in 85, in the US trials.
Wrestling was significantly diminished by the lack of Eastern Bloc nations, but the Nordic nations were very strong at the time. Both medalists beat studs.