18, 2011, when Eagles midfielder Matt Rosa was penalised by umpire Dean Margetts in a deliberate out of bounds decision with West Coast leading by two points in the dying seconds. Having earned a free kick from the decision, Hayden Ballantyne had a chance to win the game for Fremantle with a shot after the siren from 50m out on a tight angle and while his drop punt looked a goal for much of its journey, it hit the padding on the right hand goalpost amid a sea of hands from both sides, leaving the Eagles the winners by a single point, 8.17 (65) to Fremantle's 9.10 (64). Ballantyne prematurely celebrated, believing that the kick was a goal and had won the match. This proved to be the catalyst for both sides as the season wound down. Fremantle slid down the ladder, losing the next six matches in succession to end a disappointing season, while West Coast went on to win their remaining regular season matches. Derby XLVIII Round 20, 2018 Nearly two decades after the most violent derby in its history, another infamous contest occurred in Round 20, 2018. During the third quarter, West Coast midfielder Andrew Gaff struck Fremantle first-year player Andrew Brayshaw in the face in an incident which occurred off the ball and resulted in Brayshaw suffering a broken jaw. Gaff was targeted by Fremantle players for the remainder of the game, until his coach decided to bench him after suffering from a double-team shoulder hit from two Fremantle players. Gaff was sent straight to the AFL Tribunal the following day, where he pleaded guilty to intentionally striking Brayshaw, and subsequently suspended for eight AFL matches, thus missing the AFL finals where West Coast would go on to win the Premiership. Derby LI 2020 For the first time, due to the 2020 COVID-19 pandemic reducing the season to 17 games, only a single derby was played in 2020. The ground capacity was restricted to half of the maximum to allow for social distancing. The crowd of 25,306 people was the highest for the AFL since the pandemic started, but the lowest ever for a ticketed derby. West Coast won by 30 points, setting a new record of ten consecutive derby wins dating back to August 2015. Western Derby results |- style="background:#ccf;font-size: 87%" | | Year | Date | | Home Team | | Away Team |