Absolute differential

[this was previously posted to the qbtheory board
at clubs.yahoo.com/clubs/qbtheory ]

Just a
quick thought inspired by CMU's tournament...total
point differential, defined as the sum of(your points -
opposing points) over all games, is used as a tiebreaker
in a lot of tournaments, but it doesn't adjust for
difficulty of rounds; a win of 5-0 has the same differential
value as one of 405-400. Would it be more meaningful to
use an "absolute differential" defined
as:
---
\ P(team) - P(opp)
 > ----------------
/
P(team) + P(opp)

--- 

over all games
involving a given team?

Edmund

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