[citation needed] Peos was a leading schoolboy player, and was part of the inaugural West Coast squad in 1987.
Peos played his 50th game for West Coast against the Sydney Swans in 1992.
After playing 29 games in four seasons from 1989 to 1992, he was traded to the Brisbane Bears for draft pick number 21.
He nominated for the AFL pre-season draft in 1995, and was picked up by his former club the West Coast Eagles, and played four games that year, finishing his AFL career with 88 games and 64 goals.
He became the stand-in East Perth coach in the latter part of 2006, nurturing talent such as Matthew Leuenberger.