- Sodium
- 270 mg / 20 oz
- Caffeine
- 0 mg
- Glucose : fructose
- sucrose and dextrose
Every aid station on the course, what it serves, and the exact minute you reach it based on your goal time. Then a fueling plan built on this exact course, so every gel is timed to avoid the hills and where there is water to wash it down so you never hit the wall in the last 6 miles.
Aid tables from the official Route 66 Marathon 2026 course map, checked 12 Oct 2026. Route 66 publishes miles; kilometres are converted. Map data © OpenStreetMap contributors.
This plan was built for a runner looking to finish in 3:48 who needs 81 g of carbs per hour for their fitness level. Get the full course built to your goal and fueling needs here →
Most fueling plans are generic: take a gel every 30 minutes, wash it down with water and drink your carb beverage in between.
But, what if your planned time to take a gel comes right in the middle of a hill? What if there’s no aid station close by to grab water from?
Often, where each gel goes on the course matters as much as how many you take
It’s these small, often ignored parts of executing a fueling plan that trip runners up and have them hitting the wall or slowing down because of an upset stomach, despite having a well-rehearsed fueling plan heading into the race.
things go wrong when you don’t account for the course in your fueling plan
You plan a gel at 60 minutes, but the next water station isn’t for another 15. That means you either have to wait, take it without water and have it sit, or take it with your carb beverage and take in too much sugar for your stomach to process.
Route 66 does not publish an aid station list. The 13 water stops here come from the race's own 2026 course map, the first of them at mile 4.2, and the race names Gatorade but no gel, so the cup is the only carbohydrate on the course. Without a plan you either double up late and pay for it, or run the last 10 km short.
As intensity increases, your stomach’s ability to process carbohydrates slows down. Couple that with breathing harder up a hill and you’ve got the perfect storm for a gel that can’t be digested fast enough.
The distance between aid stations, the concentration of the carbohydrate drink, and how much you’re actually able to swallow all change how much glycogen you’re actually replacing every hour. Your plan calls for 60 g per hour, but if you only hit 40 g you’ll run out of glycogen before you finish.
So your fueling plan needs to start with one question, and everything after it follows.
Water at 13 tables, Gatorade at all of them.
What that adds up to, and what you still carry.
Fuel off the course ↓Your products, your timing, nothing riding on a cup you might miss.
What the course still decides for you.
Fuel from your own kit ↓Route 66 is a good course to do this on. Water and Gatorade Thirst Quencher come at all 13 tables. Below is where you’ll find each station.
Elevation is stretched to emphasis location. The numbered dots are your recommended fueling options for your 3:45 goal.
Source: the official Williams Route 66 Marathon, checked 12 Oct 2026
Water is provided at all 13 tables, from mile 4.2 to mile 25.
Gatorade Thirst Quencher at every table, so there is carbohydrate in the cup each time you drink. Route 66 hands out no gels.
The course climbs 562 ft in total, and 1 climb is steeper than 3%: mile 16.8 to mile 17, 42 ft. CarbRate keeps your feeds off that climb and on the water tables either side.
every table, mile 4.2 to mile 25
every table from mile 4.2 to mile 25
Put your goal time in and when you arrive at every aid station on the course recalculates. This is the list to put in your pocket, and the one CarbRate builds your feeds on.
| mi | km | Table | What’s at the table | You arrive |
|---|---|---|---|---|
| 4.2 | 6.8 | Water stop | waterGatorade | 0:36 |
| 7.3 | 11.7 | Water stop | waterGatorade | 1:03 |
| 9.4 | 15.1 | Water stop | waterGatorade | 1:21 |
| 10.9 | 17.5 | Water stop | waterGatorade | 1:34 |
| 13.2 | 21.2 | Water stop | waterGatorade | 1:53 |
| 14.7 | 23.7 | Water stop | waterGatorade | 2:06 |
| 17.5 | 28.2 | Water stop | waterGatorade | 2:30 |
| 19.6 | 31.5 | Water stop | waterGatorade | 2:48 |
| 21 | 33.8 | Water stop | waterGatorade | 3:00 |
| 22 | 35.4 | Water stop | waterGatorade | 3:09 |
| 23.1 | 37.2 | Water stop | waterGatorade | 3:18 |
| 23.9 | 38.5 | Water stop | waterGatorade | 3:25 |
| 25 | 40.2 | Water stop | waterGatorade | 3:35 |
Gatorade Thirst Quencher is 6.1 g of carbohydrate per 100 mL. A typical cup contains about 200 mL.
But, you likely won’t actually drink that much. Volunteers typically fill cups about half way to prevent water from splashing and you’ll lose a good amount as you run with the cup and what spills as you drink.
On average, you can expect a net intake of about 60 to 90 mL per cup
This is the part most runners don’t account for in their fueling plan, so CarbRate builds it directly in your plan.
We’ll tell you exactly how many cups at each aid station to drink based on how much glycogen you need and how much you’ll be able to supplement with gels.
A cup holds about 200 mL. Half-filled, spilled and sipped on the run, 60 to 90 mL of it actually goes down.
After you’ve calculated how much of the course drink you’ll likely take at each aid station, you’ll need to fill in your glycogen needs with gels along the course.
A typical gel contains about 25 g of carbohydrate, so use the chart here to calculate how many you’ll need.
If you’ve practiced fueling in training, you can target 75 to 90 g per hour. If you haven’t trained your stomach, err closer to 60 g per hour.
Here’s more on how to practice your fueling schedule to maximize your gut tolerance.
| Finish | 60 g/h | 75 g/h | 90 g/h |
|---|---|---|---|
| 3:45 your goal | |||
| 3:00 | 4to5 | 6to7 | 8to9 |
| 3:30 | 5to6 | 7to8 | 9to11 |
| 4:00 | 5to5 | 8to8 | 10to10 |
| 4:30 | 6to7 | 9to9 | 11to12 |
| 5:00 | 6to8 | 9to11 | 12to14 |
The course hands you one thing: Gatorade at the water stops. Every gel in your race is one you carry, so practise with it before race day rather than on it.
CarbRate builds you a personalized race fueling plan from your own sweat rate, how your stomach handles gels, and then it coaches you through every feed, live, while you run.
It also customizes every gel and every drink placement to align with the actual elevation profile and aid station on your course.
Even carrying your own fuel, the Route 66 course influences 4 things about your fueling plan: the timing of your gels, fluid intake, the hills, and caffeine.
The common advice is to take your gels every 30 to 45 minutes, but that might not coincide with when you hit an aid station.
If you’re not carrying your own water with you, you’ll need those aid stations to wash down your gel.
For a 3:45 finisher, Route 66’s tables arrive 36, 63, 81, 94 and 113 minutes in, then every 7 to 24 minutes.
So, you need to factor this into your fueling plan.
Enter your goal time in the input box below and we’ll show you when each aid station will arrive for your given pace.
If you want a fueling plan with all of these built in, CarbRate does this for you. Start building your plan here.
For a 3:45 finisher, 3 of 11 twenty-minute alarms land within 2 minutes of a table. Highlighted tables take a gel in a 75 g an hour plan; the first goes down before mile 4.2 from a bottle you carry.
| Finish | 60 g/h | 75 g/h | 90 g/h |
|---|---|---|---|
| 3:45 your goal | 9 | 12 | 14 |
| 3:00 | 8 | 9 | 11 |
| 3:30 | 9 | 11 | 13 |
| 4:00 | 10 | 12 | 15 |
| 4:30 | 11 | 14 | 17 |
| 5:00 | 12 | 15 | 18 |
Research has shown that the optimal carbohydrate concentration is 6 to 8 percent carbohydrate to water.
That means you’ll want about 100 mL (3.5 oz) of water for every 8 grams of carbohydrate you take in. A typical gel contains 25 g of carbohydrate, so you’ll want to aim for about 300 mL (10 oz) of water with each gel.
A good estimate is that each cup of water will provide you 100 mL (3.5 oz) of water. That’s because volunteers typically fill cups about half way to prevent water from splashing and you’ll lose a good amount as you run with the cup and what spills as you drink.
So, if you’re not carrying your own water, have your gel open and prepared to take at the start of the aid station so you can take it early with a cup of water and still have time to grab another cup or two.
The carbohydrate you need per hour is the same on a hilly course as on a flat one. What changes is which aid stations you can take it at, when you reach them, and where your caffeine goes.
Keep your gels off the climbs
Your stomach slows down digestion as your effort increases running uphill. This happens because blood moves from your gut to your legs, so a gel taken on a hard climb sits there instead of being absorbed.
So, keep your gels off any climb steeper than about 3 percent, and take them on the flat before it or the flat after it.
Route 66 has 1 climb like that: mile 16.8 to mile 17, 42 ft.
Long, steep descents are no better. Below about 7 percent your quads are doing the braking and everything in your stomach is bouncing, so wait for the grade to ease before you take anything.
If you want a fueling plan with your gel and drink timing customized to the course, CarbRate does this for you. Start building your plan here.
The climb at mile 16.8 at mile 16.8 is the climb that decides your race, so your caffeine goes in about an hour before it.
If you plan to use caffeine, it’s best to time it so the benefits kick in when you need them the most.
Caffeine peaks in your blood about an hour after you swallow it, then it slowly falls.
In that analysis of 4.2 million marathon results, the runners who slowed sharply began to do so just before mile 18.6 (30 km).
With a goal finish time of 3:45 that would place your caffeine at mile 14.7 (24 km).
This should provide you with peak benefits from the caffeine right when you need it the most.
Blood caffeine peaks about an hour after the dose, so a mile 14.7 gel peaks near mile 22 for a 3:45 finisher, after the wall has started. In 4.2 million marathon results, the late slowdown began near mile 18.6.
CarbRate builds you a personalized race fueling plan from your own sweat rate, how your stomach handles gels, and then it coaches you through every feed, live, while you run.
It also customizes every gel and every drink placement to align with the actual elevation profile and aid station on your course.
These are the warnings CarbRate attaches to a Route 66 plan, word for word, for the runner in the plan above.
Route 66 hands out no gels. Whatever you eat on this course, you are carrying — plan for all 12 feeds yourself.
The longest stretch without water on Route 66 runs 3.1 miles, from mile 4.2 to mile 7.3. At your pace that is about 27 minutes. Carry fluid through it rather than waiting for the next table.
Route 66 has Gatorade Thirst Quencher at 6.1 g per 100 ml, which is strong. Drinking 500 ml an hour covers about 31 g/h of your 81 g/h target, and your plan has already taken that off your gels.
Route 66 names Gatorade but never says which formula. On the standard Thirst Quencher label that is about 460 mg of sodium per litre, under the 600 mg per litre target; if the race pours Endurance Formula instead it is nearly double. The race publishes no mix ratio, so neither figure is confirmed.
Treat the course as water and carbohydrate, and bring your own sodium. CarbRate works out how much from your sweat rate and the forecast, and puts it on the same schedule as your gels.
From 12 November the start-line forecast appears here, with what it changes in your plan. On a warm day: more fluid and more sodium.
Every fact on this page in one block, for the runner who wants the answer and nothing else.
Yes. Gatorade Thirst Quencher is at every table, mile 4.2 to mile 25, alongside water. Route 66 hands out no gels.
It depends on your carbohydrate target and how much of the course drink you take. At 75 g an hour a 3:45 finish needs about 280 g. Drinking one cup of Gatorade at every other table covers roughly 60 g of that, which leaves about 9 gels of 25 g, so carry 9. Drinking half a litre of Gatorade an hour, carry 7. The grid above works this out for any finish time.
Yes. Our course profile shows 562 ft of climbing across 26.2 miles with 1 climb steeper than 3%: mile 16.8 to mile 17, 42 ft. CarbRate keeps your gels off those climbs and on the tables either side of them, and arrival times assume even pace only as a rough guide.
The race does not publish sodium figures for anything at its tables, and we could not confirm one for the on-course mix. Treat the course as water and carbohydrate and bring your own sodium plan.
Route 66 publishes none. The tables carry water and Gatorade and nothing else.
The first table is at mile 4.2. After that they come every 0.8 to 3.1 miles. The longest gap after the start is mile 4.2 to mile 7.3, about 5.0 km, which is 28 minutes at 4:00 pace and 35 minutes at 5:00 pace.
There are 13, at miles 4.2, 7.3, 9.4, 10.9, 13.2, 14.7, 17.5, 19.6, 21, 22, 23.1, 23.9 and 25. All 13 have water. Every one of them also has Gatorade Thirst Quencher.
Yes. Route 66 does not take personal bottles from the mass field, so everything you carry starts on you at the gun, with water at every table to top a flask from. Carrying everything at 75 g an hour is 12 gels of 25 g for a 3:45 finish.
60 to 90 grams an hour, set by your body size and by how much your stomach has practised absorbing. Start at the rate you have already trained at rather than the rate you want: 90 g an hour is a target to build toward over a training cycle before you race on it.
Only for the opening 4.2 miles. The first table is at mile 4.2, about 36 minutes into a 3:45 race, and after that tables come every 0.8 to 3.1 miles. If your first feed comes before mile 4.2, carry the fluid for it from the start line.
1 to 4 g of carbohydrate per kg of body weight in the 1 to 4 hours before the start, from food you have already eaten before long runs. A 68 kg runner eating 3 hours before the start needs roughly 130 to 200 g of carbohydrate.
The tables, the Gatorade and the course profile above are already in. Add your weight, goal time, sweat rate and the gels you like, and CarbRate builds your feed-by-feed plan for Route 66, then calls each feed by voice on race day.
The plan is free. Live race-day guidance and the practice schedule are in the app, $9.95 a month or a one-time $49.95 Race Pass that expires after your race.