You can do this with Player Match-Maker which is coming out this week! 

Check out the webinar on this feature: 

Chadwick, love this, and thank you for the great explanation. I really like this approach.

Great idea, I'll get these added! 

John,

Totally agree with you, and so glad you submitted this.  I just put it in the queue to get it fixed.  I feel this is more of a bug since we already show the registrant list in the UI by last name, just not the attendance report.  I'm assuming this is what you're asking about right?