Sydney Blue Sox and Canberra Cavalry will clash in the first round of the Australian Baseball League playoffs for a chance to play for the championship.

Sydney Blue Sox and Canberra Cavalry have seized the final two Australian Baseball League playoff berths following a dramatic last round of regular-season fixtures.

The Blue Sox and fellow playoff aspirants the Melbourne Aces split the first two games of their series before Sydney’s 4-2 win in game three clinched second spot on the ladder.

With their season on the line, the Aces battled back to take the final match 2-0 to keep their post-season hopes alive.

However, celebrations were short-lived when Canberra turned the tables on Brisbane in their series finale for the Cavalry to lock up third place.

The Cavalry were tied with Melbourne for the final playoff seed but qualified thanks to a 5-3 head-to-head record.

Canberra struggled early in their series with the Brisbane Bandits, dropping two of their first three games to set up a win-and-in scenario on the final day of the season.

With their backs against the wall, the Cavalry won 5-3 with Michael Wells and Michael Crouse each contributing three hits to earn a chance to defend their ABL title.

Despite losing the first three games of their final series with Perth, Adelaide still controlled their playoff destiny heading into their final game but the Bite were unable to seize the opportunity, falling to the Heat 7-5.

Sydney earned home-field advantage in the first round of the ABL playoffs and will host Canberra in a best-of-three series from next Friday.

The winner will travel west to face two-time ABL champions Perth Heat in the three-game ABL championship series the following week.