[2] Byars began playing soccer when she was four and joined Solar SC alongside future Longhorns teammate Lexi Missimo at age five.
[2] Byars led the Texas Longhorns with 12 goals as a freshman in 2021, earning Big 12 Conference all-freshman and All-Big 12 second-team honors.
[2][11] On November 7, 2024, National Women's Soccer League club San Diego Wave FC announced that they had signed Byars to a three-year contract through the 2026 season with an option to extend for an additional year.
[4][14] After playing in a friendly tournament for the under-16 team, she was the youngest player included on the under-17 roster at the 2018 FIFA U-17 Women's World Cup.
[17] She helped the under-20 team win the 2022 CONCACAF Women's U-20 Championship and 2022 Sud Ladies Cup, where she was the tournament's top scorer.