Competing in the women's event, she will be one of the 32 contestants in the 2019 World Squash Championships, held in Chicago from February 23 to March 3.
She qualified for the championship as she is 63rd in the Professional Squash Association (PSA) ranking.
The 56 highest-ranking players in the PSA qualify automatically while eight are invited after winning the qualifiers or junior world championships. If any of the invited players are already ranked within the first 56, or cannot participate, lower-ranked players are invited as well.
That's how Mackeviča qualified.
"Of course, they are all world-class elite players. But it's not as if any of the 32 are unbeatable," said Mackeviča. "It'll all depend on the opponent's, and my own, performance on that day, as well as the draw and, of course, luck."
Until then, Mackeviča - Latvia's only professional squash player - will partake in the Cincinnati PSA tournament, where she is among the top 16 seeds.
Mackeviča is a nine-time Latvian champion. A former tennis player, she started playing squash in Liepāja, western Latvia. She is currently based in Germany's Paderborn.