In partnership with

Rating systems
that hold up.

Four live sessions with Maddy Brown. Build Elo from scratch, add uncertainty with Glicko, and learn to evaluate rankings that survive contact with reality.

Masterclass and Membership members pay $479. Discount applied at checkout.

• Four live sessions, Wednesdays Oct 7, 14, 21, and 28, 1:30 to 3:30 PM ET
• Elo, Glicko, calibration, evaluation, a complete rating engine you build yourself
• Lifetime replays + Posit cloud workspace, all code carried session to session