StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    MongoDB how to run aggregate query on items with unique values
| Author | Votes | Δ | 
|---|---|---|
| Blakes Seven | 4 | +0.35 | 
| KTAnj | -1 | -2.79 | 
Last visited: Jan 26, 2016, 7:59:57 AM