The visualization below shows the 2019 and 2021 Tor des Glaciers (TOR450) finish time distributions. The cutoff for TOR450 is 190h. As one can see, most runners finish a few hours before the cutoff.
There were 58 male and 2 female DNFs in 2019. In 2021, there were 24 male and 1 female DNFs. Females at start in 2019: 4% (4); females at start in 2021: 5.5% (3).