The Thunder have officially signed Christoph Tilly to an Exhibit 10 contract, the team announced today.

Tilly’s agreement with Oklahoma City was first reported by Jon Chepkevich of DraftExpress in late June, shortly after the German big man went undrafted after spending his senior college season at Ohio State. He spent his first three years with Santa Clara prior to transferring to the Buckeyes.

Tilly, who’s from Berlin, averaged 11.0 points, 4.7 rebounds and 2.3 assists in 32 games for Ohio State in 2025/26 (26.0 minutes per contest). He averaged 12.5 PPG, 4.9 RPG and 1.9 APG in 31 appearances with Santa Clara as a junior (22.6 MPG).

The Exhibit 10 contract theoretically provides Tilly with a chance to be promoted to a two-way deal, though all three of the team’s two-way spots are currently occupied. He can also earn a bonus worth up to $91K on top of his typical salary if he’s waived before the regular season starts and spends at least 60 days with the Oklahoma City Blue, the Thunder’s NBA G League affiliate.