January 25 to January 28 - Compete against Gridcoin: TN-Grid 3 day Race #001
Gridcoin also organizes a challenge for TN-Grid. Also, because Seti.USA does so as well this month.
Compete against Gridcoin: TN-Grid 3 day Race chat and stats page
January 30 to February 04 - Bioinformatics Challenge
The earlier announced Seti.USA TN-Grid challenge. They sure get their money's worth for their new optimized apps!
Bioinformatics Challenge chat and stats page