How much drinking water does a marathon or running event need? A worked example
For Rubber City Run 2026 in Kottayam, Refillr planned about 200 jars of 19 litres (3,800 litres) across 14 stations: 13 on the course and one at the venue. That is roughly 14 jars per station on average. For your own event, estimate litres per person, multiply by participants, divide by 19 for jars and add a spare margin.
Running out of water at a race is a safety problem, and over-ordering wastes money and space. The easiest way to plan is to start from a real event and then scale it to yours.
A real example: Rubber City Run 2026
| Item | Figure |
|---|---|
| Categories | 42.2 km, 21.1 km, 10 km and 3 km |
| Hydration stations | 14 (13 on the course + 1 at the venue) |
| Jars on course | About 200 × 19 litres |
| Drinking water | About 3,800 litres |
| Average per station | About 14 jars (≈270 litres), a simple division |
The per-station figure is an average for illustration. Real stations are loaded differently, depending on how many runners pass them and when.
See the Rubber City Run 2026 hydration points →
What changes how much water you need
- Number of participants, plus volunteers and spectators who will also drink.
- Distances: longer routes need more stations and keep people out for longer.
- Time of day and weather: heat and humidity raise demand.
- Number and spacing of stations, which your organisers and medical team decide.
- Whether water will also be used for splashing or cooling.
- Spare stock for delays, late finishers and emergencies.
A simple estimator
Jars needed ≈ participants × litres per person ÷ 19, then add about 20% spare. The litres-per-person figure is your assumption: pick it with your organisers and medical team, considering the distance and weather.
| Participants | 0.5 L per person | 1 L per person | 2 L per person |
|---|---|---|---|
| 500 | 16 jars | 32 jars | 64 jars |
| 1,000 | 32 jars | 64 jars | 127 jars |
| 2,000 | 64 jars | 127 jars | 253 jars |
| 5,000 | 158 jars | 316 jars | 632 jars |
These are planning estimates, not a standard or medical guidance. Weather on the day can change demand a lot, so keep spare jars at the venue.
Logistics checklist
- Agree delivery times so jars reach each station before the first runners do.
- Plan cups, tables and bins for every station.
- Put at least one volunteer at each station.
- Keep spare jars at the venue for top-ups.
- Arrange for empty jars to be collected after the event.
Planning a run or event in Kottayam?
Refillr delivers sealed 19-litre jars across Kottayam district and supplied all 14 stations at Rubber City Run 2026. Tell us your date, distances and expected numbers and we can help you plan.
Tell us the date, venue and guest count — we bring, set up and collect.
Frequently asked questions
How much water does a 10K race need?
It depends on the number of runners, the weather and how many stations you have. A simple estimate is participants × litres per person ÷ 19 for jars, plus about 20% spare. Choose the litres-per-person figure with your organisers and medical team.
How many water stations did Rubber City Run 2026 have?
Fourteen: 13 along the course and one at the venue, LuLu Mall Kottayam, supplied by Refillr with about 200 jars (3,800 litres).
How many litres are in a water jar?
A standard drinking water jar holds 19 litres, though it is often called a 20 litre jar or can.
How early should I book water for a large event?
Talk to your supplier as early as you can, so delivery to each station can be planned around road closures and start times.
Who supplied water for Rubber City Run 2026?
Refillr was the Official Hydration Partner of Rubber City Run 2026, organised by JCI Kottayam.
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