Maybe it's not only about numbers

"The Mark of a Woman’s Record: Gender and Academic Performance in Hiring"
~ Natasha Quadlin:

"Although GPA matters little for men, women benefit from moderate achievement but not high achievement. As a result, high-achieving men are called back significantly more often than high-achieving women—at a rate of nearly 2-to-1. I further find that high-achieving women are most readily penalized when they major in math: high-achieving men math majors are called back three times as often as their women counterparts"

 https://journals.sagepub.com/doi/abs/10.1177/0003122418762291