The Beale–Orchard-Hays Prize 2018 has been awarded to Liuqin Yang, Defeng Sun, and Kim-Chuan Toh for their paper on SDPNAL+, which describes a new method for semidefinite programming with nonnegative constraints (Mathematical Programming Computation 2015). The prize, which is awarded for excellence in computational mathematical programming has been presented at the 23rd International Symposium for Mathematical Programming (ISMP) in Bordeaux in July 2018.

The prize committee 2018 Tobias Achterberg, Michael Grant (chair), Jeffrey Linderoth, Petra Mutzel, and Ted Ralphs selected the winners from several worthy nominations. Every three years the Beale–Orchard-Hays Prize will be considered; it is awarded by the Mathematical Optimization Society.