Ammendola was born in Lansdale, Pennsylvania, and attended North Penn High School.

The previous school-record longest field goal was held by Jacksonville Jaguars placekicker Brandon McManus.

Oklahoma State led the nation in opponent starting field position thanks to Ammendola's kickoffs.

[2] Ammendola made 23 field goals in his sophomore year, which is the third-highest single season total in Oklahoma State history.

Ammendola also made three field goals against Kansas and Virginia Tech during the Camping World Bowl.

On March 2, 2024, he received the chapters highest honor being inducted into the Gamma Chi Hall of Fame.

Ammendola was elevated to the active roster for the Chiefs' Week 3 game against the Indianapolis Colts due to an injury to starting kicker Harrison Butker.

[16] Four days later, he was activated from the practice squad after an injury to starting kicker Matt Prater.

[20] On January 3, 2023, Ammendola signed with the Green Bay Packers' practice squad following an injury to Ramiz Ahmed.

[22] On November 7, 2023, Ammendola was signed to the Texans practice squad following an injury to starting kicker Kaʻimi Fairbairn.

[28] On January 19, 2024, Ammendola signed with the San Antonio Brahmas of the United Football League (UFL).

[29] He was released on March 10,[30] as the Brahmas chose to sign Donald De La Haye, who won an open competition with Ammendola for the team's kicker position.