The rankings for WPI are incorrect: because of a mistake in the data entry (Edit: Not your data, the data entry at the competition which actually caused a re-do of the alliance selection), the data you have is missing the final qualification match, which impacted the top 8 rankings.
The match can be found here:
http://www.thebluealliance.net/tbatv/match/2010wor_qm58
Overall very impressive. Thank you for posting.