The 1999 Westar Rules season was the 115th season of the various incarnations of the West Australian Football League and the third as “Westar Rules”. It is most notable for the first winless season in open-age Western Australian football since Midland Junction in their final 1917 season lost all twelve of their games, although South Fremantle in the under-19 1944 competition lost all nineteen of their games. Peel Thunder, who at the completion of the season had won only two of their first sixty Westar Rules matches, achieved the equal second-longest winless season in a major Australian Rules league behind SANFL club Sturt in 1995. Although beforehand most critics thought the Thunder would improve on what they did in their first two seasons, late in the season none of the major Westar Rules