One key moment in Porttila's career occurred in 1984, when Finnish long distance runner Martti Vainio failed in doping-test.
Martti Ahtisaari | Martti Talvela | Martti Suosalo | Martti Rautanen | Martti Vainio | Martti Olavi Siirala | Juha Vainio | Aaro Vainio |