Background: I was a mid level d1 guy in college, never qualified for NCAAs but ran some decently impressive times. To put into perspective, I was one of the better runners on a semi respectable teams aka we have guys qualifying for NCAAs, we had all americans, etcs.
We had a very big party culture at our school and most of the guys on the team participated in it to a certain extent. Our team was subsequently split 50/50 in terms of smoking pot. The 50% who did were generally the better guys on our team. The biggest smokers? The top 5 guys on the team. We are talking an everyday type of things. Most of us also were probably the best academically as well.
I can attest to the fact that I smoked pot with a guy friday evening, and the following morning he qualified for NCAA XC as an individual in a rather impressive race.
Flip side, my roommates and i used to smoke frequently with the best girl on our team, multiple times a week. We used to smoke a TON, and she was on a complete different level than we were. Yet she was still able to perform on the national level.
Would we have been better if we didnt smoke or even smoked moderately? Maybe, but the number one thing that people site as a detriment to running is a loss of motivation or distraction from running. This is false, that would also hold true for people doing poorly academically. It isnt a coincidence that the best guys on our team smoked every day, were the best in class and high level competitors in running. It is about your priorities. If you wanted to get high af every night, we never saw any downside effect. But that is also to say that we didnt compromise sleep, or eating correctly, etc. We were always mindful.
ALSO, total rookie mistake. If you don't want to feel groggy or scatter brained in the morning after smoking, take a multi vitamin before bed and you will wake up feeling incredible...same goes for a night of drinking. Team captain my frosh year taught me that and it has worked wonders.
Shout out to all the runners still running fast and smoking pot all the time. They are more frequent than you would think.
The weekend before a buddy of mine broke 4 for the first time we got absolutely hammered and smoked a large amount.