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Thursday, May 23, 2013

UPDATE | 2012-2013 CollegeBowling.com Top Averages / Average Differentials (February 25, 2013). The Top Average / Average Differential Lists have been updated to include all reported events through November 25, 2012. The latest additions include the Hooiser Classic, NJCAA Region III and NJCAA Region XV.

These Player Averages are calculated from the results of USBC certified intercollegiate team tournaments conducted during the current regular season. The current minimum number of games for inclusion on the Top Average / Average Differential Lists are 40 games (all-events) or 20 games (Tier I only). These will be increased each month until the final minimums of 48 games (all-events) or 24 games (Tier I only) are reached on March 1, 2013.The lists include the top players that meet the applicable participation requirement sorted by either 1) "average" or 2) "average differential".

The players averages included here are for informational purposes only, and are not recognized by USBC for use in certified competition. Some averages may include games started by one player but completed by another. Where substitutions have occurred, the game has been credited to the player that started that game.

AVERAGE DIFFERENTIAL EXPLAINED

A traditional player average does not accurately measure athlete performance when comparing bowler scores throughout an entire collegiate season, across multiple events and different lane surfaces and conditions. The CollegeBowling.com average differential provides a method of comparing athlete performance against an event field rather than the variance of easy or difficult scoring conditions. It requires a "field average" be calculated for comparison to an athlete's performance. The field average is the average of the scores for all athletes in a division (men or women) in a single event. The field average is then subtracted from the athlete's individual average to determine the average differential. A positive average differential means an athlete performed better than the average athlete in an event, while a negative average differential means an athlete underperformed when compared to the average athlete.

In calculating an athlete's season average differential, it is weighted based on the number of games the athlete bowled in each event.

The average differential was developed by Karl Nickolai for use at this site beginning with the 1998-1999 season.

DEFINITIONS

As used in the Top Average / Average Differential lists:

The Field Average (F-AVG) is included to show the average of ALL of the bowlers in ALL of the events the listed player has participated in.

The Average Differential (A-DIFF) shows the difference between the season average of the listed player and the field average for all of the events the listed player has participated in. This shows how much above (or below) the field the listed player has performed.

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