Nobody normally submits more than one entry, (especially since there is no cash jackpot.) There were 3 entries from one person 2 years ago, but those were separate picks from 3 members of the same family.
You can submit more entries if you want. This is a good Challenge for the Add Seed, to test it and maybe change a money pool to that format in the future. I'm still trying to find Ryan Zimmerman's picks for 2013 on the Internet, to add it.
