9814

Baseball: Graph of On-Base Percentage

This Demonstration is a graphical representation of the On-Base Percentage (OBP) statistic, which is widely used in baseball. OBP is based on (1) the at-bats a player has had; (2) the number of successful hits in these at-bats; (3) the player's walks; (4) the number of times the player has been hit by a pitch; and (5) the number of sacrifice flies the player has hit. In baseball, the walks, hit by pitches, and sacrifice flies are not counted as official at-bats, and so these stats must be separately accounted for in the OBP formula. Because sacrifice flies and hit by pitches are so rare (and therefore have a small influence on the graph), the axes of the graph use hits and walks, which are much more abundant. This Demonstration calculates and gives a visual representation of any OBP. Using examples, it can help in obtaining a better understanding of one of the most popular statistics in the game of baseball.

THINGS TO TRY

SNAPSHOTS

  • [Snapshot]
  • [Snapshot]
  • [Snapshot]

DETAILS

Because OBP is a percentage, it is possible for someone with 800 at-bats to have the same value as someone with only 10 at-bats. To compensate, the graph changes its shape as the number of at-bats changes. This idea can be seen in Snapshot 3, where the gray indicator can move along the graph as expected, but it can also be raised by altering the at-bats, changing the shape of the graph, and changing the OBP value. All historical statistics were obtained from www.baseballreference.com
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.









 
RELATED RESOURCES
Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in Step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2014 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+