Because I wrote about it Thursday and he was asked about it today, allow me to print this excerpt from Rob Neyer's ESPN.com chat:

Bob Hope, Maryland: Can you explain the prospective value of Pythagoran record. I can understand how it may explain whether a team has been lucky or unlucky in the games it has played, but is there really any evidence that it can predict future performance?

Rob Neyer: (1:07 PM ET) There's not only "any" evidence, there's plenty of evidence. A team's Pythagorean record predicts future performance than does its actual record. So Braves fans, don't get too excited just yet.

This morning, the Dodgers remain tied with the Giants for first place in the NL West Pythagorean Standings.

For those of you who are Baseball Prospectus subscribers, Clay Davenport takes this approach even further, incorporating such items as strength of schedule. Davenport determines that so far, the Giants have been "the luckiest" team in baseball - and if baseball were played by the numbers, they would be tied for third place with Arizona, a hair behind Colorado and the Dodgers. Frankly, it's a virtual four-way tie.

Of course, this doesn't mean that baseball is in fact played by the numbers, nor that luck can't be the residue of design (as Branch Rickey would say). But it may mean that the pennant race could be more interesting than you might fear.