The main problem is, the logistics would be a huge nightmare. The Race happens over a month basically, with a lot of preplanning ahead of time. And at the moment, regions are opening and closing their borders with very little notice as case counts rise and fall. My own province here in Canada has been wide open since the end of July, but just this week, we're tightening up the border as of Tuesday, so 5 days notice before things tighten up again.
And more places close with even less notice as the nth wave rises in their region. While running the Race is theoretically possible; if