While it's nice to run with your colleagues, this race is shoulder to shoulder. For any serious runner, it's a nightmare. The heat is always hit or miss. There are homeless people on Lower Wacker, which also radiates the heat exhaust from the hotels above. The turnaround point is a tight squeeze.

If you try to run with your colleagues, make sure to set a meeting point for after the race, because with so many non-regular runners out and about, it's a headache trying to navigate the race space.