All races
Race plan calculator
Rocket City Marathon 2026 race plan, snapped to the course.
Build a fueling and hydration plan tailored to the Huntsville course, your pace, and December race-morning conditions — aid stations and all.
Course · Rocket City Marathon
Downtown Huntsville → Five Points → Space & Rocket Center → Botanical Garden → finish
Course
Aid station
Race setup
Your plan is built from your pace, body, sweat profile, and Huntsville's historical December conditions — then snapped to Rocket City's aid stations.
04
01 · Race
Distance
Switching reloads the matching course and aid-station set on the map above.
02 · You
Pace & body
Pace and weight feed the carb recommendation below. Your data isn't stored.
At 8:30 /mi, projected finish is 3:42:52.
03 · Weather
Race-day conditions
Pre-filled from 10-year Huntsville averages for race weekend. Adjust closer to race day for the forecast.
Historical · Dec 13 race morning
coolAvg start temp
40°
4 °C · 75–85% humidity
Avg finish temp
52°
~4 hr after start
Wind · sky
5–10 mph
Partly cloudy
%
04 · Body
Sweat profile
If you cramp, see white streaks on clothing, or eyes sting — pick a saltier setting.
05 · Fuel
Carbs per hour
Faster finishers and heavier runners tolerate more; cool conditions allow the high end of your range.
g/h
Recommended 70–90 g/h · midpoint 80 g/h
Based on 3:42:52 finish, 70 kg runner, cool conditions, salty sweat. Aim for 700–1000 mg sodium/hr.
06 · Hydrate
Hydration strategy
Choosing aid stations locks fluid drops to the on-course list. Own bottles lets you carry custom volume.
Estimated finish
3:42:52
Distance
26.2mi · 42.2 km
Total carbs
297g
Fluid target
2173ml · 73oz
Sodium target
3157mg
Race day starts the week before.
Your calculator plan covers gun-to-tape fueling. The app handles everything around it — daily training-day nutrition, carb-loading for race week, and a personalized race-morning breakfast timed to your start. Download it free on the App Store or Google Play.
Daily fueling synced to your training load
Race-week carb loading, scaled to your weight
Race-morning breakfast plan, timed to your gun
In-race adjustments if conditions change
Course data verified with Rocket City Marathon 2026 organizers