Grey Knights vs Space Marines Battle Reports

1 recorded engagement between the Grey Knights and the Space Marines is filed in the Librarium. One filed engagement is not a sample: what follows is a single data point, not a verdict on the matchup.

The engagement filed is Olivier Weiss vs Scott Morris - London GT 2026, streamed by WarGames Live on Sep 26, 2026. Olivier Weiss brought Space Marines and Scott Morris brought Grey Knights.