Running on a Mac
The Universal League Manager is a Windows based application. As such, it will not install and run on a Mac directly.
Some users have reported that they run the ULM on a Mac using virtual machine software. Popular virtual machine programs for Mac include VMware Fusion and Parallels.
There are other ways to run the ULM on a Mac, and which way you choose is a matter of personal choice.
To find out more, click on http://www.howtogeek.com/187359/5-ways-to-run-windows-software-on-a-mac/
or type the following into google: "running windows on mac"