The original nighttime run-and-gun biathlon.

The Twilight Biathlon is a timed 5K run-and-shoot competition held at night on unlit terrain at The Burial Mound Shooting Center in Pawnee, Oklahoma. Competitors run a two-lap course through Oklahoma fields and woods, engaging four live-fire shooting stages along the route.

Four divisions cover the field: 2Gun and PCC run Saturday night on white light, while NV 2Gun and NV PCC run Friday night on night vision only with no white light permitted anywhere on the course.

Scoring is time-based. Your final score is the combined total of your four shooting stage times plus your course run time. Lowest score wins.

Running since 2018

Twilight Biathlon has run twice a year — spring and fall — since 2018. The format, the NV/WL split, and the 5-minute individual release schedule are the original template for this type of event.