Coombs was part of the Australia men's national wheelchair basketball team at the 1960 Rome, 1968 Tel Aviv, 1972 Heidelberg, 1980 Arnhem and &lt;a href="1984%20Summer%20Paralympics"&gt;1984 New York/Stoke Mandeville&lt;/a&gt; Paralympics. He served as coach/captain at the 1972 games and as captain at the 1984 games. He also participated in athletics events at the 1968 and 1972 Paralympics.