In this city we get a lot of re-use, most of it in parks. I agree it's the course that is certified, and anyone can use it, just refer to it by it's certification number.
When I name courses I name them after the location and not the race de jour. It just makes more sense.
We only have so many good race locations and because of the extraordinary cost of police it makes senses for many local races to use the local parks. Therefore re-use of race course in the parks is common throughout the year because our parks are not that big so there is only so many ways you can fit a race into them.
I strongly advocate for reusing existing courses that are tried and true. Volunteers and runners know the setup, know where to park, and most of the kinks of that location have been figured out.
I would prefer people re-use the existing course instead of waking another one down right on top of it. We have one park with no less than 4 one mile marks all within 160 feet of each other. That they are that spread apart is surprising because I believe they all use the same start line.
BUT it really burns my toast when I figure out an amazing new course that winds through a part of town not used before, and the event is a smashing success, and after we have done the event for a couple of years, grown the numbers to about 1500, and got voted best local race..... 'the one who shall not be named' finds a group who will do an almost identical event, the month before, and lays a course right on top of mine, although it is true that his finish is a little different.
I even have a unique twist to that race in that a 5 Mile and 5K start on the same course but 17 minutes apart. The second reuses the first mile, then goes a different rout, only to merge into the stream of runners from the first race and they all run back together for the last 1.5 miles. One of my best works yet. It took a lot of work to figure out how to use that part of town; how to interlock to simultaneous races with different distances an identical finish lines; and make it work with hundreds and hundreds of people in both races at the same time.
So after first pinching the 5K course almost identically, they have now fully copied the event, by adding a 10K that is identical to my 5M course, except for a little more distance at the outer end. If you saw the maps you would think one was an updated version of the other.
The two simultaneous races that are timed to merge smoothly into one is one of the many features that make the event unique. It seems they are now going to copy that too.
This ain't in a park where you only have a few roads to select from. This is in a city where you have to work very hard to stay on the same twisting and turning route. My course has 10 turns and three bridges in the first 2.5 miles, theirs matches stride for stride.
It's not just that event, but now almost every major local race our club does now has a shadow event in the proceeding month, in the same park or location, with an identical distance or almost identical event. I know that imitation is the sincerest form of flattery but it is getting ridiculous.
Then, then some of the copy cat events have the gall to turn around and suggest we are copying them....
So my prayer is that if people want to run a duplicate event on one of my courses, or a copy of one of our clubs events, please schedule it for six months earlier or later, not the month before. I know you are attempting to steal our thunder and our runners but this sort of malarkey hurts both races.