Seen them reported as:
Looks like absolute first round is:
1. Buchecha vs Gary Tonon
2. Sekine vs Lister
3. Rustam Chisiev vs Orlando Sanchez
4. Vinny vs Piechota
5. Uminski vs Cyborg
6. JOao Gabriel Rocha vs David Avellan
7. Keenan vs Ezra Lenon
8. Leo Nogueira vs Jared Doop
And here's how it went down, thanks again to mma timeline for their great work showing all adcc brackets
http://www.mmatimeline.com/ADCC/ADCC2013AbsoluteFrames.html 
Would have been great to see Dean win it all