She graduated Kansas State in 2015 with PRs of 4:26 1500, 16:30 5K, and her highest finish in XC was 45th. There are no results listed on her IAAF profile from then until 2019. This year she has improved to 4:11 (national record) and 15:29. Today she got 4th in the Pan Am 1500 (breaking her own NR in 4:10) and then winning the 5K 45 minutes later over Kim Conley and Jessica O'Connel (PRs of 15:05 and 15:06).
That sounds like a crazy improvement but on the other hand, she ran her PRs in high school and basically plateaued in college which is pretty common for women. She had some talent and if you ignore the decade between then and now, wouldn't be that suspicious.
However, the mystery is what was she doing the last 4 years and how did she break her plateau and make her epic comeback.