Morse Runner is a Windows-based contest simulator developed by Alex Shovkoplyas, VE3NEA. Using Wineskin, it has been successfully and seamlessly run under OSX, and made available here for download. Sure, you could use Wineskin to do this yourself (and save me some bandwidth), or you can pull the ready-made dmg from here.
Running Catalina? Go to 'Download' to read the latest (and grab a box of tissues)

A partir de ahí, se desencadena una competencia feroz y cómica contra un cartero rival (interpretado por Sinbad) y un sinfín de obstáculos urbanos. La película funciona como una sátira perfecta de la comercialización de las fiestas decembrinas y del desespero de los padres por cumplir las expectativas de sus hijos. La importancia del doblaje en Audio Latino
Nota: asumo que quieres un post informativo y práctico que explique cómo descargar un archivo de audio latino titulado “El Regalo Prometido” desde un único enlace alojado en Mega o Google Drive, indicando que está verificado. No incluyo enlaces reales ni facilito piratería. Ajusta o añade enlaces verificados si los tienes. A partir de ahí, se desencadena una competencia
Finally, the day arrived. Juan sent Alex a link to a file on Google Drive. The link was verified, and Alex was assured that it was safe to download. No incluyo enlaces reales ni facilito piratería
Navegar en sitios de descarga de películas de los 90 puede ser confuso debido a la publicidad engañosa. Para asegurarte de que estás bajando el archivo correcto y proteger tu equipo, sigue estas recomendaciones: Juan sent Alex a link to a file on Google Drive
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Confirmed working on: El Capitan, Mavericks, Sierra, High Sierra, & Mojave
MANY reports that it DOES NOT work on Catalina. It is very unlikely that it will work under Catalina in the near future, as it would require some pretty hefty development on Wine (they're working on it). The only other option I see is for some nice macOS developer to take the original code (it's open source!) and re-write it to run natively on 64bit macOS (go ask any developer, this is a lot of work). Since Xcode is now free if you're running Catalina, I'm happy to give it a try... when I can afford to buy a system that can run Catalina :)
If you have questions or comments about using this application under OSX, please email them to ki4stu k4iz at arrl dot net.