Congratulations, kind of, but I totally empathize with "tired of being close." I just learned yesterday that "Failure to Yield" did NOT make it past the semi-finals of the Lakeshore Players contest in your home state. This is the third year one of my plays has made it either to the finals or semis--a threepeat of not being selected for production! It's almost worse to be a finalist or semi-finalist than to be nothing at all, because then you get your silly little hopes up, only to be dashed that much farther. Not to be too negative about it all... but it does get "tiring."
And I wonder about putting "semi-finalist" or "finalist" on a resume. For something huge like your Heideman finality, definitely. It's a mark of excellence to be a finalist in a contest of that magnitude. But for some of these smaller festivals or contests, I wonder. Is it a good idea to let another festival director know that the play wasn't quite good enough? "Semi-finalist" is something I might put on my doollee page--especially if the play has been produced elsewhere. But I tend to leave it off my playwright's bio.
The upside is that you know you're on the right track. If your plays are as good as your poems--watch out, everybody else!
May I make this proviso: never mention an award in your resume' about the play you are submitting.
When I am submitting a play to a contest, I never mention anything about that particular play.
However, when I submit a play/writing sample to a theatre for possible productions (as opposed to a contest) it is a different set of circumstances on what they are looking for.
I do have a play or three that have won four or five national awards, or won me a Fellowship or some other standout event, and I definitely DO mention that upon submission, as none of the winners would have had a production going along with the prize. This does impress a theatre and I get the script requested. I get "good letter" back from the theatre and it opens doors for future submissions.
You sort of have to play it by ear. Your own instinct.
Listen, an old friend of mine once said, "If you don't promote yourself...who will?" Never be humble. You have earned the awards. A fact is a fact. Let the facts speak for themselves. As long as it does not come across as gloating, you will be okay.
What the awards on any level actually suggest is a "continuous persistence of effort" as a playwright, not just a "one-offer."
So, it is a judgment call for each play and theatre one submits to. Look at the submission guidelines.