This was an interesting one.
Thanks for this one @kelly_gilbert - good opportunity to work with the reporting tool with a very specific format on the outcome (that was fun, to ensure that folks know where to set different settings).
I took a slightly different approach - the UI allows you to specify your own event, and the names of the participants (saves people from having to write their names)
I had a really fun time with this challenge. After I got to the step where the information needed to be put through the reporting tools, I needed to go through some solutions to understand how to use the reporting tools. This worked out pretty well and I learned more about how layering works with this reporting suite, but I found that my results in the browse tool didn't quite translate to the actual renderings.
Workflow + Output
--If you try to cross tab a layout and select concatenate this error appears (needed to click first to fix)