In baseball, wRAA (weighted Runs Above Average) measures the number of runs a player contributes to his team relative to a league average player. Spectator’s algorithm assigns a weight to each offensive event based on the number of runs that event is expected to produce. So, while hitting a single with no men on base does not score a run, that single will statistically return an expected fraction of a run. That value, and the expected point values of every offensive event, become weights in the wRAA formula into which player data are fed.

Women’s golf will head to South Carolina this weekend to participate in the Clemson Invitational.

Women’s golf shot three consistent rounds to finish tenth place out of 13 teams at the Augusta Invitational on Sunday

On a Friday evening in early February, Columbia men’s basketball traveled to Philadelphia and ended Penn’s losing streak. The Lions’ loss triggered their demise as measured by Spectator's Elo rating system, which relies on data from previous games to predict the strength and future success of Ancient Eight competitors.

Men’s squash star Osama Khalifa won four straight matches to capture the men’s individual national title at Dartmouth over the weekend.

Men’s squash will send its top two players to Dartmouth this weekend to participate in the College Squash Individual Championships.

Men’s squash went 1-2 to finish in fourth place at the Collegiate Squash Association Team Nationals this weekend.

Spectator’s Elo forecasting model predicted only six out of nine winners last week, making Ivy week six the worst yet for the algorithm. Despite having just a 66 percent accuracy rate this week, the model still maintained its lead over our lovely sports editor, Austin Horn.

Men’s squash will head to Cambridge, Massachusetts this weekend to participate in the Collegiate Squash Association Team Championships.

Men’s squash earned convincing wins against Penn and Princeton this weekend to finish the season second in the Ivy League.