Yankee Run Factor: A-Rod's big week
Alex Rodriguez #13 of the New York Yankees waits in the on deck circle against the Baltimore Orioles at Oriole Park at Camden Yards. (April 23, 2011) Credit: Getty Images
After Sunday's games, Alex Rodriguez is sixth in the American League with a .354 average (minimum 40 at-bats).
But he's moved into first place on the Yankee Run Factor list, thanks to a six-RBI Saturday (including a grand slam.) Curtis Granderson, sixth in the YRF/G with a 1.056, made the biggest jump by increasing .413 runs produced per game. A three-homer, six-RBI week will do that to a fella.
Here is this week's report (with explanations below the chart):
| PLAYER | G | PA | R | RBI | HR | YRF/G | YRF/PA |
|---|---|---|---|---|---|---|---|
| Alex Rodriguez | 15 | 65 | 14 | 17 | 5 | 1.733 | .400 |
| Mark Teixeira | 18 | 82 | 16 | 16 | 6 | 1.444 | .317 |
| Russell Martin | 17 | 66 | 12 | 16 | 6 | 1.294 | .333 |
| Robinson Cano | 18 | 78 | 11 | 14 | 4 | 1.167 | .269 |
| Nick Swisher | 18 | 79 | 11 | 8 | 0 | 1.056 | .241 |
| Curtis Granderson | 18 | 70 | 14 | 12 | 7 | 1.056 | .271 |
| Derek Jeter | 18 | 82 | 12 | 5 | 0 | 0.944 | .207 |
| Eric Chavez | 9 | 21 | 4 | 3 | 0 | 0.778 | .333 |
| Jorge Posada | 17 | 67 | 7 | 11 | 6 | 0.706 | .179 |
| Brett Gardner | 17 | 63 | 6 | 4 | 1 | 0.529 | .143 |
| Andruw Jones | 6 | 16 | 2 | 2 | 1 | 0.500 | .188 |
| Gustavo Molina | 1 | 3 | 0 | 0 | 0 | 0.000 | .000 |
| Eduardo Nunez | 5 | 2 | 0 | 0 | 0 | 0.000 | .000 |
What is the Yankee Run Factor?
The Yankee Run Factor is a fairly simple statistical metric. It takes the "Runs produced" sabermetric created by Bill James and divides it in two different ways.
Equation 1
The first equation is R + RBI - HR / G = Runs produced per game, as indicated in the chart above as YRF/G.
Equation 2
The second equation is R + RBI - HR / PA = Runs produced per plate appearance, as indicated in the chart above as YRF/PA.
The Yankee Run Factor is updated every Monday | Past Yankee Run Factor reports.
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