Maybe look at the balance in Triathlon / Duathlon that might give a good idea of the equivalents.
Running is much tougher on the body recovery wise.
This is probably why it’s the pro cyclists who die young rather than the pro runners. The runners need more time for their bodies to recover giving more time for their cardio systems to recover as well.*
This is an off the cuff remark involving the smallest amount of thought and zero research. So where better to post it up. 🙂