The three-ball, also known as the trey, triple and trifecta, among other names, is one of the Oceanside girls basketball team's favorite offensive weapons.

The Mariners use the long ball to take and extend leads. They also use it to emotionally drain the spirit and energy from a high school court opponent.

And no Mariner does that more consistently than Audrey Mackie, who has one of the smoothest and most accurate shooting touches around.

In fact, when the sophomore gets on a roll shooting anywhere on the court, she is difficult to contain.

That was the case on Monday afternoon, March 8 when she drained eight three-pointers — she now has 36 trifectas for the year — and poured in 28 points to help lead Oceanside within one victory of an unbeaten record in the pandemic-altered 2020-21 campaign.

Mackie's bust-out offensive performance, one of many from the shooting guard this winter, helped No. 1 Oceanside defeat No. 5 Mount View of Thorndike (5-9) 69-36 in a Kno-Wal-Lin (Knox-Waldo-Lincoln county) COVID Basketball Tournament semifinal playoff encounter on Monday.

Watch video and see more than 50 photos below.

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With the victory, Oceanside (12-0) will host No. 2 Medomak Valley (11-2) on Thursday, March 11 at 4:30 p.m. in the championship game.

The Panthers bested No. 6 Camden Hills (4-9) 37-29 in the other semifinal playoff on Monday.

During the regular season, the Mariners, who have outscored opponents 706-412 (59-34 per game) and connected on 96 three-pointers, beat the Panthers 58-33 and 60-51. Oceanside also downed the Mustangs twice — 49-32 and 47-27.

Mount View had moved on in the single-elimination playoffs with a forfeit victory over No. 4 Boothbay Region, which had to drop out of postseason play due to COVID-related issues.

In Monday's playoff game, Oceanside took control early as the hosts led 18-8, 35-15 and 55-26 at the quarter breaks.

Mackie scored all but four of her points in the first three quarters and, of her nine field goals, eight came from international waters.

Also for the Mariners, Abby Waterman added 17 points; Grace Woodman, 11; Anna Kingsbury, six; Emily Sykes, five; and Ahlivia Morris, two.

The Mariners netted 5-of-9 free throws (56 percent) and Woodman also canned three trifectas and Sykes one, to give the Mariners 12 for the game.

For the Mustangs, who had only seven players available, Hannah Coolen and Kricket Thompson, leaders all season, keyed the way with 14 points, while Hannah Ferreira added seven and Syd Vogel one. Coolen and Ferreira connected on treys for the visitors, who sank 4-of-9 foul shots (44 percent).

The 6-foot 3-inch Thompson also hauled down nine rebounds, while Vogel grabbed three caroms and Ferreira two.

Additionally for the Mariners, Waterman finished with 12 rebounds, five assists and five steals, while Mackie chipped in five assists, two rebounds and three steals; Woodman and Morris, three rebounds; and Grace VanBuskirk and Kingsbury, two caroms.