How to organise a triathlon without missing the critical details

Organising a triathlon starts with the course and safety plan, not with race-day equipment. Fix the date, reserve a start and finish location, and check the swim, bike and run sections before opening registration. Then secure permits, traffic measures, medical support, rescue boats, volunteers and timing. This plan takes you from the first route checks to cooled drinks, marked courses and a controlled race-day setup.

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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
Set the date and route
3 people
2
Apply for permits
2 people
3
Reserve start and finish location
2 people
4
Check the swimming water
2 people
5
Check the cycling course
3 people
6
Check the running course
3 people
7
Prepare safety plan
3 people
8
Apply for traffic measures
2 people
9
Open participant registration
2 people
10
Send invitations
2 people
11
Process registrations
2 people
12
Collect dietary requirements
13
Send participant information
2 people
14
Recruit volunteers
2 people
15
Assign volunteers
2 people
16
Arrange medical support
2 people
17
Reserve lifeboats
2 people
18
Arrange timekeeping
2 people
19
Assign start numbers
2 people
20
Print participant list
21
Check the weather forecast
22
Check course markings
3 people
23
Gather sports equipment
3 people
24
Do the shopping
3 people
25
Chill drinks
2 people
26
Assemble starter packs
4 people
27
Set out route signs
2 people
28
Load Tents and Tables
4 people
29
Load the finish arch
2 people

Event

30
Set up the bib number desk
4 people
31
Set up the swimming start area
5 people
32
Set up transition area
5 people
33
Set up finish area
5 people
34
Mark off bike course
8 people
35
Mark off the running course
6 people
36
Mark bends and crossings
4 people
37
Install bike racks
3 people
38
Set up signage
4 people
39
Set up the first aid station
3 people
40
Check the rescue equipment
3 people
41
Set up water stations
5 people
42
Hand out starter packs
5 people
43
Register participants
4 people
44
Inspect bicycles
2 people
45
Brief participants
3 people
46
Set up the starting lanes
3 people
47
Guide the swim start
8 people
48
Guard the transition area
4 people
49
Secure the bike course
10 people
50
Secure the running course
8 people
51
Record split times
4 people
52
Refill water
4 people
53
Refill Sports Drink
3 people
54
Serve fruit and snacks
3 people
55
Receive finishers
5 people
56
Handle medal distribution
2 people
57
Process results
3 people
58
Support awards ceremony
3 people
59
Serve participants' meal
6 people
60
Refill drinks
3 people
61
Guide the last participants
4 people
62
Clear the course
4 people

Aftercare

63
Dismantle the start and finish area
6 people
64
Take down the transition area
4 people
65
Remove course markers
6 people
66
Collect waste
5 people
67
Clean the venue
5 people
68
Clean sports equipment
3 people
69
Inventory materials
2 people
70
Return rental items
3 people
71
Store leftover stock
2 people
72
Dispose of waste
2 people
73
Publish results
2 people
74
Thank participants
2 people
75
Handle lost and found
76
Return traffic materials
2 people

What to bring

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

Furniture

Party tentsqty 4
Foldable tablesqty 12
Folding chairsqty 40
Bicycle racksqty 80
Waste binsqty 12
Crowd barriersqty 60
Beer tablesqty 8

Sports equipment

Swimming buoysqty 12
Life ringsqty 8
Rescue linesqty 4
Conesqty 80
Course tapeqty 12
Bib numbersqty 150
Race bib strapsqty 150
Swim capsqty 150
Bike helmetsqty 10
Bottle holdersqty 10
Spare bike pumpsqty 4
Bike tool kitsqty 4
Spare inner tubesqty 20
Traffic conesqty 40
Finish arch
Stage blocksqty 3
Medal ribbonsqty 150
Sports towelsqty 30

Equipment

Time registration system
Walkie-talkiesqty 12
Megaphonesqty 3
Laptopsqty 2
Tabletsqty 4
Mobile chargersqty 8
Extension cordsqty 6
Power stripsqty 6
Portable lightingqty 6
Coolersqty 8
Thermos flasksqty 6
Flashlightsqty 8

Tableware

Reusable drinking cupsqty 250
Reusable platesqty 180
Reusable cutleryqty 180
Coffee cupsqty 80
Serving plattersqty 20
Serving tongsqty 12

Kitchen

Coffee machinesqty 2
Kettlesqty 2
Cutting boardsqty 4
Chef's knivesqty 4
Cooler cratesqty 6
Insulated dispensersqty 4
Storage binsqty 20
Food glovesqty 4

Decorations

Route signsqty 30
Start and finish signsqty 4
Directional signsqty 25
Barrier tapeqty 10
Flagsqty 30
Flagpolesqty 30

Lighting

String lightsqty 8
LED lightsqty 12

Cleaning

Trash bagsqty 150
Broom setsqty 4
Floor squeegeesqty 3
Bucketsqty 6
Spongesqty 12
Microfiber clothsqty 20
Hand soap dispensersqty 6
Disinfectantqty 6
Toilet paperqty 48
Paper towelsqty 24

Catering

Groceries

Tips

Check the swim, bike and run courses before registration opens. Confirm water safety, road access, transition areas and a backup start or finish location before publishing the route.
Apply for permits and traffic measures early enough to receive approval before participant information is sent. A route that is still provisional creates avoidable changes to start times, directions and volunteer posts.
Assign volunteers by station rather than recruiting only a total number. You need named people for registration, course marking, transitions, aid points, traffic positions and finish support, plus a clear briefing time.
Set up timing and participant administration together. Assign bib numbers, print the participant list and test the timing system, laptops, tablets and walkie-talkies before athletes arrive.
Treat safety equipment and weather checks as race-critical. Inspect swim buoys, life rings, rescue lines, cones and course tape, then check the forecast and adjust staffing, hydration and shelter plans before the start.

Frequently asked questions

How far in advance should I organise a triathlon?: Start planning at least 6 months before race day so there is time for permits, traffic measures, medical support, rescue boats and volunteer recruitment. Open registration only after the date, route and safety arrangements are sufficiently fixed.
How many volunteers do I need for a triathlon?: The number depends on the course and participant count, but plan one named volunteer for every staffed position and add a reserve for each major zone. Finalise the roster at least 2 weeks before the event so every station has instructions and contact details.
When should I send triathlon participant information?: Send the main participant information 2 to 3 weeks before the race, including the schedule, course details, parking or access instructions, equipment rules and contact information. Send any weather-related changes as soon as the forecast affects safety or logistics.
What should I check the day before a triathlon?: Recheck course markings, swim safety equipment, timing hardware, bib numbers, transition areas, drinks and volunteer communications the day before. Keep a final weather and safety review within 24 hours of the start, with a clear decision-maker for changes.

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.