NBA ref data

Ref outlier · Finding 1

Only 58 refs trend over — out of 75

Among officials with 50+ games, just 58 finish above the 225-point benchmark more often than not.

Why it matters: That's 77% of high-volume refs. The over club: Jenna Reneau, Sha'Rae Mitchell, Gediminas Petraitis, Marat Kogut, Eric Dalen, Ray Acosta, Michael Smith, Eric Lewis, Mitchell Ervin, Marc Davis, Scott Wall, Sean Wright, Kevin Cutler, Dedric Taylor, Intae Hwang, Tony Brothers, Nate Green, Jacyn Goble, John Goble, Nick Buchert, Jonathan Sterling, Pat Fraher, Scott Twardoski, Brett Nansel, Danielle Scott, JD Ralls, Zach Zarba, Brent Barnaky, Dannica Baroody, Biniam Maru, Rodney Mott, Tre Maddox, Aaron Smith, Che Flores, Derrick Collins, Curtis Blair, Andy Nagy, Courtney Kirkland, Karl Lane, Evan Scott, Jenna Schroeder, Ben Taylor, Natalie Sago, Matt Myers, Scott Foster, Tyler Ford, Robert Hussey, Phenizee Ransom, Pat O'Connell, Simone Jelks, Leon Wood, John Conley, Ed Malloy, James Williams, Jason Goldenberg, Mark Lindsay, Brian Forte, Brandon Schwab. Hunting overs means targeting specific refs, not league-wide assumptions.

Whistle extreme · Finding 2

Kevin Scott whistles differently by team

Denver Nuggets draw +2.9 fouls per game with Kevin Scott; Chicago Bulls see -3.2 — a 6.0-foul swing.

Ref–team split · Finding 3

JT Orr helps NYK on fouls — but they still lose

With JT Orr on New York Knicks games, opponents are whistled +3.1 more fouls per game. Yet New York Knicks win just 26.7%.

Why it matters: Foul edge doesn't always convert to wins or overs. These games average 220.4 combined points (53.3% over rate).

League trend · Finding 4

The league tilts under — almost every ref

In this dataset, 15 of 75 officials (20%) call games that finish below our 225-point benchmark more often than above. Only 58 refs trend the other way.

Why it matters: The league-wide over rate (52.8%) is games-weighted across all ref workloads. At 52.8%, unders land more often than a neutral 50% baseline — a systemic era-wide pattern in this sample, not a handful of outliers.