The number of Wild Card Berths won by the Oakland Athletics currently is 4.  2001, 2014, 2018, and 2019 are the seasons in which they were won.

2001 Wild Card Berths Title Won By Oakland Athletics

It was the Oakland Athletics’ 34th season in Oakland, and the franchise’s 101st season overall, when the team played its home games in Oakland. The squad finished second in the American League West with a 102-60 record, good for second place overall.

2014 Wild Card Berths Title Won By Oakland Athletics

The 2014 American League Wild Card Game was a play-in game between the AL’s two wild card clubs, the Oakland Athletics and the Kansas City Royals. On September 30, 2014, it was hosted at Kauffman Stadium in Kansas City. This win promoted the Royals to face the Los Angeles Angels of Anaheim in the 2014 American League Division Series. The game was on TBS and ESPN Radio.

2018 Wild Card Berths Title Won By Oakland Athletics

The game began at 8:08 p.m. EDT on October 3. The Yankees triumphed 7–2 and will meet the Red Sox in the ALDS. The game was dubbed the American League Wild Card Game sponsored by Hankook Tire.

2019 Wild Card Berths Title Won By Oakland Athletics

For the second year, ESPN aired the game, which was sponsored by Hankook Tire. A Statcast-sponsored alternative broadcast aired on ESPN2. The game had the largest attendance for a wild card game at 54,005.