Races
Silver Moon 100
Forty laps along the Kings River. Orchards, vineyards, flat farm roads under the full moon. First 100 territory if you hit 85 by hour 24.
51 km+3,376 ft-3,376 ft30 hours1,333 ft to 2,629 fttech 7/1041 stationsfull moon40 lapsfirst 100 friendlyApril
Distance51 km
Gain+3,376 ft
Loss-3,376 ft
Altitude1,333 ft to 2,629 ft
Technicality7/10
Air50°F to 75°F
- Start1,722 ft
- High2,629 ft
- Low1,333 ft
- Finish1,722 ft
- Start line at mile 0.0
- Lap 1 complete at mile 0.8, cutoff 0.75 hours
- Lap 2 complete at mile 1.6, cutoff 1.5 hours
- Lap 3 complete at mile 2.4, cutoff 2.25 hours
- Lap 4 complete at mile 3.2, cutoff 3 hours
- Lap 5 complete at mile 4.0, cutoff 3.75 hours
- Lap 6 complete at mile 4.8, cutoff 4.5 hours
- Lap 7 complete at mile 5.5, cutoff 5.25 hours
- Lap 8 complete at mile 6.3, cutoff 6 hours
- Lap 9 complete at mile 7.1, cutoff 6.75 hours
- Lap 10 complete at mile 7.9, cutoff 7.5 hours
- Lap 11 complete at mile 8.7, cutoff 8.25 hours
- Lap 12 complete at mile 9.5, cutoff 9 hours
- Lap 13 complete at mile 10, cutoff 9.75 hours
- Lap 14 complete at mile 11, cutoff 10.5 hours
- Lap 15 complete at mile 12, cutoff 11.25 hours
- Lap 16 complete at mile 13, cutoff 12 hours
- Lap 17 complete at mile 13, cutoff 12.75 hours
- Lap 18 complete at mile 14, cutoff 13.5 hours
- Lap 19 complete at mile 15, cutoff 14.25 hours
- Lap 20 complete at mile 16, cutoff 15 hours
- Lap 21 complete at mile 17, cutoff 15.75 hours
- Lap 22 complete at mile 17, cutoff 16.5 hours
- Lap 23 complete at mile 18, cutoff 17.25 hours
- Lap 24 complete at mile 19, cutoff 18 hours
- Lap 25 complete at mile 20, cutoff 18.75 hours
- Lap 26 complete at mile 21, cutoff 19.5 hours
- Lap 27 complete at mile 21, cutoff 20.25 hours
- Lap 28 complete at mile 22, cutoff 21 hours
- Lap 29 complete at mile 23, cutoff 21.75 hours
- Lap 30 complete at mile 24, cutoff 22.5 hours
- Lap 31 complete at mile 25, cutoff 23.25 hours
- Lap 32 complete at mile 25, cutoff 24 hours
- Lap 33 complete at mile 26, cutoff 24.75 hours
- Lap 34 complete at mile 27, cutoff 25.5 hours
- Lap 35 complete at mile 28, cutoff 26.25 hours
- Lap 36 complete at mile 28, cutoff 27 hours
- Lap 37 complete at mile 29, cutoff 27.75 hours
- Lap 38 complete at mile 30, cutoff 28.5 hours
- Lap 39 complete at mile 31, cutoff 29.25 hours
- Finish line at mile 32, cutoff 30 hours
Field, 2026 · 5-year sampleresults
Starters15
Finish rate100%
Median26:42
Sub-243
Geometrycourse math
Steepest drop850 ft-7.6% over 2.1 mi
Night miles14 misunset near 18:00 local
Course records
Men16:31:19Christian Johnson
Women22:24:51Jess Mullen
The cruxMile 85 gate at 24 hours to earn six more (near mile 21)
Course DNA
The Course
Silver Moon 100 runs 51 km through Reedley, California. +3,376 ft gain and -3,376 ft loss. Surfaces skew 100% farm path / dirt road. Mile 85 gate at 24 hours to earn six more. High point near 2,629 ft. Low near 1,333 ft. April temps run 50°F to 75°F. The course rewards patience early and punishes rushed descents after mile 16.
The Work
Train for 3,376 feet of climbing across 51 km. Back-to-back long runs on similar surfaces. Practice power-hiking grades above 15 percent. 30 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 7/10. Build a block that simulates the crux near mile 21.
Kit
April in Reedley, California: plan for 50°F to 75°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 30 hours pushes past dark. Poles help on sustained climbs above mile 8. Vest capacity for 2 liters minimum. Shoes matched to 100% farm path: lugs for mud, rock plate if the course turns technical after mile 16.
Race Day
Hold effort through mile 8. The field often splits on the first big climb after mile 16. Mile 85 gate at 24 hours to earn six more near mile 21 is where time is won or lost. Walk the steep pinches. Run the flats and gentle downhills. Crew at major aids: socks, calories, ice if hot. Transitions under 5 minutes when possible. Final third is 10 miles of fatigue management. Finish with reserve for the last descent.
Results
Silver Moon 100 finish lines.
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Sources (2)
- Field stats (2026): https://ultrasignup.com/results_event.aspx?did=135558
- Course record (F): https://ultrasignup.com/results_event.aspx?did=131231