Nicholas-Tolsma wa brought onto the staff in the July of 2023 as an assistant coach before being elevated to interim head coach in August.

Under Nicholas-Tolsma's guidance, the Saints made the East Coast Conference Tournament in their first year of eligibility as the sixth seed in 2023. DYU saw a massive improvement on offense under Nicholas-Tolsma, doubling their goal total to 22 in her first season. Nicholas-Tolsma also had one player naemd to the ECC All-Conference Team.

Prior to D'Youville, Nicholas, Tolsma was the head coach at Medaille University from 2018-22. Nicholas-Tolsma compiled a coaching record of 14-49-5 including the team's best win total in 2019 since the 2014 season.

Prior to Medaille, Nicholas-Tolsma was the head coach of the Tonawanda High School girls' soccer team for four seasons with a record of 49-18-1. With Nicholas-Tolsma's guidance, the Warriors made post season all four seasons including a trip to the Section VI Finals in 2015.

As a player, Nicholas-Tolsma was a five-year starter at the University at Buffalo. During the 2012 season, Nicholas-Tolsma helped led the Bulls to the MAC Tournament as the team's defensive center midfielder.