article 'The Mad, Mad World of Niche Sports Among Ivy League–Obsessed Parents'

Princeton and Harvard are the strongest of the Ivy track programs.
Stanford is weaker than USC in short track events, but here are their walk on (not admissions preference and may not even be allowed to join the team) and scholarship standards. (Oops, can’t paste it in. The scholarship rimes listed are full scholarship. They have partial scholarships which are times between the two but they are scholarship limited. )

Men’s 800 1:49.5 scholarship; 1:53 walk on

Women’s 800. 2:05 scholarship 2:11 walk on

Men’s 1600(not 1500). 4:04. 4:11

Women’s 1600 (not 1500). 4:40. 4:53

Men’s 3200. 8:47. 9:07

Women’s 3200. 10:00. 10:30

Men’s 5,000. 14:28. 15:05.

As for XC, it’s pretty common for Stanford to take the winner of Foot Locker. And the state XC champions.

So you can see there is a huge gap. that shouldn’t be surprising. By the way, all these athletes are incredible. The Ivy’s are very very strong. However, they generally will not get the elite D1 athletes. And Stanford is just as competitive academically as Harvard or Princeton of course.