In the sentence below, the word "competition" refers to art student peers in other art schools. "Competition" feels like a singular group of people, which means I'd use the verb "was" vs "were." But I'm not confident this is correct since it refers to a lot of people, and also "were" just sounds correct. Would someone please let me know if this use of "competition" is singular or plural? Thanks!
The teacher advised his advanced students that their competition in other art schools was “getting much more training and would be way out in front of the pack.”