Jackpot Ultras Course Guide

The loop: flat, fast, and relentlessly the same

Every loop looks like the last one. There is no big climb to break the day into chapters and no descent to coast on, just smooth, flat, runnable surface around the water. That is a gift for your finish time and a trap for your head. The footing never changes, so your stride never changes, and the same muscles and joints take the same pounding for hours. Flat does not mean easy on the body. It means specific.

Lean into what the loop gives you. You will pass the start, the aid, and your own crew area every few minutes, which means you are never far from fluid, calories, a swapped bottle, or a fresh pair of socks. Smart Jackpot runners turn that into a rhythm: a small task or a small reward each lap, so the miles stack up in bite-size pieces instead of one giant featureless block.

The format: a target time or a target distance

Decide early which game you are playing, because they race differently. The 100 Mile and 50 Mile are fixed-distance, so you are chasing a time and the loops are just the road to get there. The 6, 12, 24, and 48 hour events are timed, so you are chasing distance and the question is how much ground you can cover before the clock stops. In a timed race the discipline is the opposite of what feels natural: go out gently, protect your ability to keep moving late, and let the back end of the clock reward your patience.

On the long course the 50 milers run a set number of full loops, so your splits map cleanly to laps and you always know exactly how far you have left. Use that. Counting down honest, repeatable laps is one of the calmest ways to run a long flat race.

The mental game is the whole game

This is the part nobody trains and everybody underestimates. Lapping a short loop for hours is monotonous, and the low points sneak up on you not because your legs are gone but because your brain is bored. Have a plan for it. Break the race into segments, give yourself things to look forward to, switch between music or a podcast or just running quiet, and use the people on course. The loop means you see the same faces again and again, which can be a real lift when it gets hard.

Cool desert nights are part of the long events too. The February air at Cornerstone is mild by ultra standards, but it still gets cold and dark out there, and the small hours on a quiet loop are where people quietly talk themselves into quitting. Plan your night layers and your night fueling ahead of time so the dark is just another few laps, not a crisis.

Run even, and start slower than feels right

The flatness is exactly why people blow up here. Without climbs to force you to back off, an easy early pace can quietly be five or ten seconds a mile too hot, and on a 100 that compounds into a wall. Pick a goal pace you can hold deep into the race, then run the first chunk a touch slower than that. The runners who negative-split or even-split a flat loop almost always pass a pile of people who went out chasing the perfect early splits.

Use grade-adjusted pace to set an honest flat target

Even on a near-flat loop, the tiny rolls and any wind tug on your splits, and your everyday training pace probably came off hillier or softer ground. A grade-adjusted pace lets you translate your real fitness into a clean, honest target for smooth flat road, so you are pacing off effort and reality instead of one lucky downwind lap. Lock that number in and let it govern the early loops when you feel invincible.

Build a time prediction and work it back to laps

Do not just pick a round goal number and hope. Build a finish prediction off a recent race, then divide it into per-loop splits so you have a simple, repeatable target every lap and a clear read on the cutoffs. On a fixed loop this is gold: you always know if you are on pace, behind, or banking time, and you can make calm decisions early instead of panicking late. A race-equivalent estimate also keeps you honest about whether your flat goal actually matches your current fitness.

Carbs: steady, high, and trained

A flat race means a high, sustained workload with no climbs to give your stomach a break, so feed it consistently. Most runners do well on roughly 60 to 90 grams of carbohydrate per hour, and you can push the higher end here if your gut is trained for it, because the smooth running makes it easier to keep eating. The trap on a loop is grazing at the aid table every lap and losing track of what you actually took in. Run an hourly carb number, not a vibe. Practice that exact rate on long runs so race-day fueling is a habit, not an experiment.

Sodium and fluid: cool desert air still costs you

February at Cornerstone is mild, but desert air is dry and you are out there a long time, so do not undercount your sweat or your sodium. A common starting range is about 300 to 700 milligrams of sodium per liter of fluid, leaning higher if you are a heavy or salty sweater. Because aid and your crew come around every loop, you can carry less and refill often, which is a real advantage at night when temperatures drop and you want warm fluid or warm food. Weigh yourself before and after a long run to learn your real sweat rate, then build the plan around your own number.

Turn the loop into a fueling machine

Set up your crew area or drop bag like a tiny pit stop and use it the same way every lap. Pre-portion your calories, keep a written or mental checklist, and make each pass quick and deliberate so you are eating and drinking on a schedule instead of by feel. The runners who fall apart on flat loop races usually did not bonk on fitness. They got sloppy with fueling because the aid was so easy to reach that they stopped taking it seriously.