Even before Elo, chess had a rating system that was more complex than just wins and losses, but in the mid-1950s, a 13-year-old chess prodigy named Bobby Fischer broke it.

Michigan State's home night game against Boston College on September 6 and road game at Nebraska on October 4 were each ...

There are just a few NBA-specific parameters to set, which we’ll describe below. The K-factor. Elo’s K-factor determines how quickly the rating reacts to new game results.

During Wednesday’s MIAA Tournament Management Committee, a vote passed 17-1 in favor of approving a power ratings system developed by Boston Globe high school sports reporter Jim Clark.

The rating percentage index (RPI) is a sports rating system used to help the selection and seeding of teams that will compete in the NCAA Division I men's basketball tournament.