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An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    How to sort by two values in MongoDB-Ruby?
| Author | Votes | Δ | 
|---|---|---|
| kxb | 2 | +4.04 | 
| John Beckwith Farmer | 0 | -4.04 | 
Last visited: Sep 14, 2014, 5:07:29 AM