A new double-up challenge to end your 2025 with a test of your mettle against the relentless sands of Jupiter Ridge Natural Area in Jupiter, Florida!

- Lunacy 50k: race the Sand Spur Half Marathon at 9 a.m., then return to the dunes for a 30k night run beginning at 6 p.m. for a 50k finish!

Or…

- Lunacy 50 Miler: race the Sand Spur 50k at 7 a.m., then return to the dunes for a 30k night run beginning at 6 p.m. for a hard-earned 50 mile finish!

While there are no qualifying races to enter this, please be advised this would be considered an “advanced” race on one of the toughest courses in Florida!

You must finish both races (day and night) under the cutoffs to be considered a Lunacy finisher:

Half Marathon: 9 a.m. to 2 p.m. - 5 hour cutoff
50k: 7 a.m. to 4 p.m. - 9 hour cutoff
30k Night Run: 6 p.m. to midnight - 6 hour cutoff

Lunacy themed awards, quality swag, full on-course support, crews permitted, the best volunteers around - this one is not to be missed!

Registration and full details coming soon!