Saturday is extremely busy and everyone is trying to get a game in.
I would reserve that as soon as possible. Good luck.
Do you take I69 to Indy? If you stay on that it takes you straight to Meridian.
Just saw this thread, so a little late in replying. I69 from the north (looks like you are in Michigan) mergers into I465 (Indy "circle" interstate) on the northeast side of Indy. Take I465 south to I70 west. I70 west takes you to downtown Indy. Note: there is a lot of construction on the I69/I465 interchange, so watch the signs carefully as there have been some exit layout changes.