How to organise an indoor marathon

An indoor marathon needs more than a marked-out route and a start time. Begin by confirming the hall’s capacity, booking the venue and equipment, then design the course around safe movement, clear start and finish areas, and accessible facilities. After that, manage registrations, participant information, bibs and volunteer stations in one system. The final week is for assembling starter packs, checking timing and sound equipment, preparing refreshments, and testing the course before runners arrive.

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The plan, step by step

Every task with its own sub-checklist, in the order you'll actually need them.

Preparations

1
Confirm date and room capacity
2
Set out the course in the hall
2 people
3
Map the start and finish area
2 people
4
Make reservations for the venue and equipment
5
Check event insurance
6
Send invitations
7
Publish registration form
8
Process registrations
2 people
9
Collect dietary requirements
10
Send participant confirmations
11
Create bib numbers and participant list
2 people
12
Send route and safety instructions
13
Assign volunteers to stations
2 people
14
Confirm first aid staffing
15
Set up time tracking
2 people
16
Prepare music and announcements
2 people
17
Check the shopping list
18
Order race numbers and medals
19
Do the shopping
2 people
20
Assemble starter packs
4 people
21
Sort the participant list and wristbands
2 people
22
Chill drinks
2 people
23
Prepare snacks
3 people
24
Prepare course materials
3 people
25
Check weather and safety information
26
Check the hall floor and changing rooms
2 people
27
Assemble start and finish arches
4 people
28
Mark off the course
4 people
29
Place arrows and distance signs
3 people
30
Set up registration tables
3 people
31
Set up tables for first aid stations
3 people
32
Test timing equipment
2 people
33
Connect the sound system
2 people
34
Check lighting and power
2 people
35
Set up the coffee and drinks station
3 people
36
Set up first aid table
2 people
37
Mark changing rooms and luggage area
2 people
38
Prepare starter packs per participant
4 people
39
Give volunteer briefing
2 people

Event

40
Open registration and pick-up
5 people
41
Receive and label luggage
3 people
42
Guide participants to the starting pen
3 people
43
Give the opening briefing
2 people
44
Start the marathon
3 people
45
Keep track of lap and time results
4 people
46
Guide participants along course stations
6 people
47
Serve water and sports drinks
4 people
48
Refill drinks
2 people
49
Restock fruit and energy bars
2 people
50
Serve coffee and tea
2 people
51
Serve snacks
2 people
52
Check changing rooms
2 people
53
Handle baggage collection
3 people
54
Present finisher medal
3 people
55
Register finishers
2 people
56
Check end-time sheets
2 people
57
Handle prize ceremony
3 people
58
Make closing announcements
59
Escort participants to the exit
3 people

Aftercare

60
Dismantle course materials
4 people
61
Take down the start and finish arches
4 people
62
Clear tables and chairs
4 people
63
Collect and sort waste
3 people
64
Wash dishes and supplies
3 people
65
Clean coffee station
2 people
66
Clean changing rooms and toilets
3 people
67
Leave the hall floor clean
3 people
68
Turn off timekeeping equipment
2 people
69
Disconnect the sound system
2 people
70
Store leftover food chilled
2 people
71
Check borrowed equipment
2 people
72
Return rented equipment
2 people
73
Register lost and found items
74
Publish results
75
Send participant thank-yous

What to bring

Grouped the way you'd shop for it, with quantities.

Furniture

Tablesqty 12
Chairsqty 35
Changing room benchesqty 8
Waste binsqty 12

Sports equipment

Start arch
Finish arch
Conesqty 80
Barrier tapeqty 12
Crowd barriersqty 20
Round signsqty 10
Distance signsqty 20
Bib numbersqty 180
Start number bandsqty 180
Participant medalsqty 180
Prizesqty 6
Timing matsqty 2
Stopwatchesqty 6
Reflective vestsqty 20
Luggage tagsqty 180
Emergency blanketsqty 30

Equipment

Laptopqty 2
Printer
Sound system
Microphoneqty 2
Extension cordsqty 8
Power stripsqty 8
Charging stationsqty 2
Coolersqty 8
Kettlesqty 3
Coffee machinesqty 2
Thermos flasksqty 6
Scalesqty 2

Tableware

Reusable drinking cupsqty 250
Coffee cupsqty 80
Platesqty 120
Cutlery setsqty 120
Serving spoonsqty 8

Kitchen

Cutting boardsqty 4
Chef’s knives and bread knivesqty 6
Serving plattersqty 12
Thermos bottlesqty 6
Cool bagsqty 4

Decorations

Welcome bannersqty 2
Directional signsqty 25
Name badgesqty 40
Tableclothsqty 12

Lighting

LED lampsqty 8
Emergency lightingqty 4

Cleaning

Mopsqty 4
Bucketsqty 4
Broom setsqty 3
Cleaning cartsqty 2
Hand sanitizer pumpsqty 8
First aid kitsqty 2
Dustpan and brushqty 3

Catering

Groceries

Tips

Check the hall capacity before opening registration, then leave enough space for changing benches, luggage, tables, chairs and spectator movement. A course that fits on paper can become unsafe once runners, volunteers and equipment are inside.
Map the start and finish separately from the main running loop. Mark direction changes, distance points and restricted areas with cones, barrier tape or crowd barriers, and walk the full route at least once before race day.
Close registrations early enough to produce bib numbers, wristbands and the participant list. Send route and safety instructions before the event, and collect dietary requirements while processing registrations rather than on race morning.
Assign volunteers to named stations and confirm first-aid cover before publishing the final schedule. Give station leads a timing method, reflective vest and clear instructions for what to do if a runner is injured or the route must be paused.
Test the timing mats, stopwatches, laptop, printer, microphone and sound system together before doors open. Charge devices, add extension cords and power strips where needed, and prepare drinks, snacks, coffee and emergency blankets before participants arrive.

Frequently asked questions

How far in advance should I organise an indoor marathon?: Start venue, capacity and equipment checks at least 8 to 12 weeks before the event. Open registration only after the course layout, safety plan and available volunteer cover are realistic.
How do I plan the course for an indoor marathon?: Set out the loop after confirming the hall dimensions and usable floor area. Allow clear separation between the running line, start and finish areas, refreshment points and luggage, then test the route with cones and distance signs at least one day before the marathon.
When should I send information to indoor marathon participants?: Send confirmation after registration and issue the route, safety and arrival instructions at least 7 days before the event. Include bib or wristband collection details, changing arrangements, timing information and what participants should do with luggage.
How many volunteers do I need for an indoor marathon?: Assign at least one named volunteer to every operational station, plus a coordinator and confirmed first-aid cover. Finalise the rota 1 to 2 weeks before race day so every station has a replacement for breaks or unexpected absence.

Start this plan in Lizzt

Every task and item on this page, ready in your own event. Invite people, split the work, and see who has done what.