In this scenario, you’ll have to stretch your imagination a bit, so here’s the setup.
You’ve discovered time travel, how to make it work and how to return to your current existence.
But it will work only once, only to the past, and for only one purpose: For you to go back in time to see one Cubs game or event. You can’t take your smartphone with you to take photos; you’ll wind up dressed in period clothing so you don’t stand out, and all you’ll bring back are memories. You will have one advantage: Unlike all the other people at the ballpark watching the game you’ve chosen, you will know ahead of time what’s coming, so you can prepare to focus on it.