[3] Jennings played travel ball for the OC Batbusters, and won the 2019 USA Elite Select World Fastpitch Championship.

Jennings and Grace Turk each homered three times against the Miners, tying a school record for most home runs by an individual player in a game.

[7][8] During the weekend at the Miner Invitational, she was 12-for-13, with five home runs, 12 RBIs, 30 total bases, eight extra-base hits, and a .983 batting average.

[9] During the Courtyard Marriott Tournament, Jennings went 11-for-17, with a .647 batting average, four home runs, 10 RBIs and 23 total bases.

She also ranked in the top five nationally in slugging percentage, home runs, doubles, hits and batting average.

[13][16][17] She was also one of only two freshmen in the country named a top 10 finalist for the USA Softball Collegiate Player of the Year.

[20] However, she began her professional career with the Oklahoma City Spark, an independent team at the time of her signing.

[22] Jennings represented the United States at the 2024 Women's Softball World Cup and won a silver medal.