Defensive Ratings from Retrosheet
I published an explanation of my system and the results for the Hardball Times.
The next step is incorporating lots of adjustments, some things that I thought would improve the system and some suggested through the commentary on Baseballthinkfactory and Ballhype.
Its a long process, but I put together my DP ratings today. Here are the double play allstars from 1956 to 1992, though I should extend this through 2007. While there are plenty of other sources to calculate defensive runs, I don't think anyone else who does DP runs publishes the results.
The top DP turners:
3B Brooks Robinson +26. His replacement, Doug DeCinces comes in at +12, Wade Boggs and Clete Boyer at +10.
SS: Cal Ripken +29. Ozzie is +21, then Dick Schofield +19 (a bit of a surprise) with Concepcion and Trammell at +18 each.
2B: Bill Mazeroski +40 - the legend is accurate here. Willie Randalph was close, +37, followed by Bobby Grich +23 and Tom Herr +21.
1B: Don Mattingly +9 - there just aren't enough balls hit to first for this skill to have a large run value, but Donnie Baseball was better than anyone at starting the 3-6-3. Keith Hernandez and Kent Hrbek come in at +6.