Decisive actions will be taken on Decision Day presented by AT&T. While much of the field for the Audi 2019 MLS Cup Playoffs is set, there are two postseason tickets up for grabs in the Western Conference, and four teams vying for those coveted spots. Two will play on and two will go home — here are all the different ways it could play out:
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Colorado Rapids
Colorado will clinch a berth in the Audi MLS Cup Playoffs if:
- Colorado win vs. LAFC AND ...
- FC Dallas lose vs. Sporting KC AND ...
- San Jose lose vs. Portland
- – OR –
- Colorado win by 3 or more goals vs. LAFC AND ...
- FC Dallas lose vs. Sporting KC AND ...
- San Jose tie vs. Portland
- If Colorado win by 2 goals, tiebreaker will be goals scored (COL: 57, SJ: 51).

FC Dallas
FC Dallas will clinch a berth in the Audi MLS Cup Playoffs if:
- FC Dallas win vs. Sporting KC
- – OR –
- FC Dallas tie vs. Sporting KC AND ...
- San Jose lose or tie vs Portland
- – OR –
- San Jose lose vs Portland AND ...
- Colorado lose or tie vs LAFC

Portland Timbers
Portland will clinch a berth in the Audi MLS Cup Playoffs if:
- Portland win or tie vs. San Jose
- – OR –
- FC Dallas lose or tie vs. Sporting KC

San Jose Earthquakes
San Jose will clinch a berth in the Audi MLS Cup Playoffs if:
- San Jose win vs Portland
- – OR –
- San Jose tie vs Portland AND ...
- FC Dallas lose vs. Sporting KC AND ...
- Colorado lose or tie vs LAFC
- – OR –
- San Jose tie vs Portland AND ...
- FC Dallas lose vs. Sporting KC AND ...
- Colorado win by 1 goal vs LAFC
- If Colorado win by 2 goals, tiebreaker will be goals scored (COL: 57, SJ: 51).