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Stat definitions in MACK?

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  • Stat definitions in MACK?

    I was running a MACK report and there were a couple of statistic metrics that I did not recognize. I also could not find them in the Glossary, nor on other sites. I am sure I am overlooking something simple. Help?

    What are XE and EP on the pitcher stats?

    Thanks. Best regards, Steve
    League 1 : Scoresheet, 12 team NL continuing (13 keepers)
    League 2 : Scoresheet, 20 team BL, contracts, continuing (21 keepers + 15 minor leaguers)

  • #2
    I don't have the definitions handy, but they're both reflections of which way ERA is trending. EP is "ERA Potential", it's basically a -30 to +30 scale reflecting the direction and degree that ERA should move in, based on skills.

    XE I don't remember as well, it could be xERA-ERA differential.

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    • #3
      Originally posted by RAY@HQ View Post
      I don't have the definitions handy, but they're both reflections of which way ERA is trending. EP is "ERA Potential", it's basically a -30 to +30 scale reflecting the direction and degree that ERA should move in, based on skills.

      XE I don't remember as well, it could be xERA-ERA differential.
      Thanks Ray. I did check the XE = xERA - ERA and found the numbers match up pretty close (they work out if a rounded function is used). This seems pretty useful.

      I'm not sure that the EP one works out though. I am getting numbers from MACK that are ranging 15 -75. All on the 5 or 0 unit level (e.g., 30, 40, 60 or 15, 45, 65, etc). Guys with the 70-75 numbers are Hughes, Peralta, Benoit; guys with 30 (Westbrook), 15 (Saunders). This might be for ERA potential for improvement, but...?
      League 1 : Scoresheet, 12 team NL continuing (13 keepers)
      League 2 : Scoresheet, 20 team BL, contracts, continuing (21 keepers + 15 minor leaguers)

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      • #4
        I'll check on that...

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        • #5
          My fuzzy memory is coming back to me. EP works as I described above, but it's centered on 50 instead of zero. So those above 50 should see ERA improve (higher #, more likely to improve), those below 50 should see regression.

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          • #6
            Thanks. That seems to make sense...and looks useful.
            League 1 : Scoresheet, 12 team NL continuing (13 keepers)
            League 2 : Scoresheet, 20 team BL, contracts, continuing (21 keepers + 15 minor leaguers)

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