2003-2004 Baserunning

Using my baserunning framework I ran the numbers combining both 2003 and 2004. Here are the top 20 with 50 or more opportunities:

                 Opp Bases    EB     IB   IBR OA
Vernon Wells      90  159  139.90  19.10  1.14  2
Jack Wilson       69  118  104.60  13.40  1.13  1
Larry Walker      75  132  117.28  14.72  1.13  0
Mike Cameron      81  131  117.43  13.57  1.12  1
Eric Hinske       84  143  128.26  14.74  1.11  0
Barry Larkin      62  114  102.41  11.59  1.11  0
Chone Figgins     74  121  108.72  12.28  1.11  3
Hee-Seop Choi     59  103   92.57  10.43  1.11  0
Jose Reyes        52   85   76.44   8.56  1.11  2
Scott Podsednik  101  162  145.93  16.07  1.11  1
Aaron Miles       51   82   73.87   8.13  1.11  1
Jeff DaVanon      62   99   89.60   9.40  1.10  0
Alfonso Soriano   78  122  110.70  11.30  1.10  1
Gary Matthews Jr. 66  110  100.02   9.98  1.10  1
Aaron Rowand      60  101   91.86   9.14  1.10  1
Ryan Freel        52   82   74.66   7.34  1.10  1
Miguel Cairo      56   89   81.19   7.81  1.10  0
Rafael Furcal    147  241  220.00  21.00  1.10  0
Carlos Beltran   123  201  183.50  17.50  1.10  1
Brian Roberts    130  207  189.03  17.97  1.10  2

A couple of observations:

Chone Figgins made the list while still being thrown out advancing three times in 2003-2004

I normally wouldn't have thought of Hee-Seop Choi as a good baserunner. With his 1.11 IBR maybe he's a smart baserunner or maybe he was just luckly

The average age of these 20 players is 26 years old

The bottom 10 in 2003-2004 were:

                Opp Bases          EB       IB  IBR OA
Dmitri Young     86    114     130.84   -16.84 0.87  3
Matt Stairs      59     74      85.49   -11.49 0.87  1
Damian Miller    52     69      80.02   -11.02 0.86  2
Edgar Martinez   92    121     140.54   -19.54 0.86  1
Rafael Palmeiro 104    129     150.27   -21.27 0.86  7
Mike Piazza      56     74      86.34   -12.34 0.86  2
Jason LaRue      63     83      97.37   -14.37 0.85  3
John Olerud     102    129     151.91   -22.91 0.85  3
Bill Mueller    111    143     170.80   -27.80 0.84  6
Ben Grieve       55     69      83.20   -14.20 0.83  3

The average age of these players is 32 years old.

A quick graph of IBR by age shows a pretty steady downward trend over time with a spikes at ages 37 and 40 when the number of opportunities decreases.