IRONMAN 70.3 Colombo
Colombo, Sri Lanka · February · IRONMAN 70.3
Why people love it
- Flat, closed-road bike and run through a tropical capital
- Warm ocean swim near Galle Face Green at sunrise
- February timing falls in the drier season
- Qualifying slots for the 70.3 World Championship have been offered
Watch out for
- Heat and humidity: temperatures passed 30 °C (86 °F) in 2018
- Non-wetsuit swim in water near 27 °C (81 °F)
- Small field after a six-year gap: 388 starters in 2026
- Next date unclear; past editions ran in February
- No first-person race reports found, so conditions are thinly documented
Race
How racers feel about it, how well it is run, and how it treats a first timer. Counts for 27% of the overall score.
- Racer satisfactionLiked3.4
No first-person reviews found; press called 2018 a success while noting heat that overcame many athletes. · Low confidence
- OrganizationWell run3.5
2018 had closed roads and sold out; 2026 returned after six years with 388 starters. No athlete accounts either way. · Low confidence
- First timer friendlyDoable3.0
Flat roads help, but a non-wetsuit ocean swim and heat of 27 to 33 °C (81 to 91 °F) are demanding. · Low confidence
Course traits, not part of the score
- PR potentialAverage2.9
Flat and closed roads, but humid heat; the 2018 men's winner took 4:06:05, slower than cooler fast courses. · Low confidence
- Course easeTough3.4
Difficulty comes from heat and humidity rather than terrain. · Low confidence
Swim
Wetsuit odds, water temperature, calm, and the experience of the start. Counts for 15% of the overall score.
- Wetsuit legalRarely1.0
Ocean water near 27 °C (81 °F); the 2018 swim was non-wetsuit. · Medium confidence
- Water temperatureUncomfortable2.0
About 27 °C (81 °F), at the hot-water threshold. · Medium confidence
- Calm waterMostly calm3.7
Organisers describe calm water and Galle Face is partly sheltered by the port; no athlete accounts. · Low confidence
- Swim easeEasy3.6
Single loop with no navigation or current complaints found; the 2026 swim venue is unconfirmed. · Low confidence
- Swim experienceFine3.4
Sunrise ocean swim with a city backdrop; no athlete comment on water quality. · Low confidence
Bike
Road surface, closures, scenery and wind. Counts for 19% of the overall score.
- Road surfaceGood3.5
No surface reports; city roads. · Low confidence
- Road closuresMostly closed4.2
A 2018 report describes closed roads on the bike and run. · Low confidence
- Bike sceneryPleasant3.4
Port, Marine Drive and colonial architecture. · Low confidence
- WindSome wind3.0
Windy in places, per a 2018 report. · Low confidence
Course traits, not part of the score
- Bike speedFast3.8
Three flat loops on closed city roads, with some wind. · Low confidence
- Bike flatnessPancake flat4.7
Described as pan flat in 2018; no elevation figure published. · Medium confidence
- Bike simplicityMostly simple3.5
Three city loops with turns through the port area. · Low confidence
Run
Crowds, aid stations, conditions underfoot and scenery. Counts for 13% of the overall score.
- Crowd supportDecent3.4
Loops were lengthened in 2019 to suit spectators, but no crowd accounts were found. · Low confidence
- Aid stationsStandard3.3
No aid reviews; heat overwhelmed many athletes in 2018. · Low confidence
- Run sceneryBeautiful3.7
Oceanfront run, including the harbour breakwater in 2018. · Low confidence
- Run conditionsHard2.0
Temperatures in the 30s °C (90s °F) overcame many athletes in 2018. · Low confidence
Course traits, not part of the score
- Run flatnessFlat4.7
Coastal run with no climbs reported. · Low confidence
Conditions
Air temperature, how predictable the weather is, setting, and spectating. Counts for 15% of the overall score.
- Air temperatureHarsh1.8
27 to 33 °C (80 to 91 °F) with high humidity. · Low confidence
- Weather reliabilityReliable3.6
February is the drier season, though showers occur year-round. · Low confidence
- Venue beautyLovely3.6
Oceanfront Galle Face Green and Port City; no athlete comments on beauty. · Low confidence
- Spectator friendlyEasy3.9
Three bike loops through the city centre and a finish at the seafront. · Low confidence
Course traits, not part of the score
- Low altitudeSea level5.0
Sea level, 0 m (0 ft). · High confidence
Stay and travel
Hotels, walkability, getting there, and the town around the race. Counts for 11% of the overall score.
- Hotel availabilityGood3.8
Capital city with plenty of hotels, and a small 2026 field. · Low confidence
- Hotel valueGood3.7
Sri Lanka is generally good value; no race-week price data. · Low confidence
- WalkabilityWalkable3.5
Galle Face hotels are near the 2018 venue; the 2026 Port City base is less certain. · Low confidence
- Travel easeOne connection2.8
Airport (CMB) is about 32 km (20 mi) away and most visitors need a long-haul connection. · Low confidence
- LogisticsSimple3.5
Single base at Galle Face or Port City; no complexity reports. · Low confidence
- Town and foodGood3.5
Large capital with varied food; no race-specific feedback. · Low confidence
Key facts
- Location
- Colombo, Western Province, Sri Lanka
- Typical month
- February
- Latest or next date
- 22 February 2026
- Organiser
- IRONMAN 70.3
- Field size
- About 388 athletes
- First held
- 2012
- Distances
- 1.9 km (1.2 mi) swim, 90 km (56 mi) bike, 21.1 km (13.1 mi) run
- Swim venue
- Indian Ocean off Galle Face Green (2018); Port City Colombo base (2026, swim start not confirmed) (ocean)
- Water temperature
- 27–28 °C (81–82 °F)
- Wetsuit
- Banned
- Swim start
- wave
- Swim laps
- 1
- Bike laps
- 3
- Run laps
- 2
- Run shade
- Little; coastal heat
- Air temperature
- 26–33 °C (79–91 °F)
- Humidity
- Very humid tropical
- Nearest airport
- Bandaranaike International (CMB), 32 km (20 mi) away
- Where to stay
- Galle Face, Colombo Fort / Port City
- Booking
- Official travel partner Walkers Tours (2026); Galle Face and Port City hotels near the venue.
What racers and reviewers say
- 220 Triathlon: Inaugural IRONMAN 70.3 ColomboRaced 2018 · article · Mixed
Debut Colombo race (from a search summary; the page could not be opened): Galle Face Green venue with closed roads, a non-wetsuit swim in about 27 C (81 F) water, a flat but windy bike, and many athletes struggling in 30 C+ heat.
- Slowtwitch: Al-Sultan, Zelenkova win Sri Lanka 70.3Raced 2012 · article · Mixed
Coverage of the inaugural 2012 Sri Lanka 70.3: winners Faris Al-Sultan 3:51:39 and Lucie Zelenkova 4:30:17 in steamy heat. Contextual only.
- ThePapare: IRONMAN set for Sri Lanka debutRaced 2018 · article · Positive
Preview of the 2018 course: a one-loop swim from Galle Face Green, three bike loops past the Old Parliament and Port of Colombo, and a coastal run including the harbour breakwater; around 27 C (80 F) expected.
- Daily FT: Ironman 70.3 Colombo sold outRaced 2018 · article · Positive
2018 edition sold out with 850+ athletes from 63 nations.
- Endurance-Data statisticsRaced 2018 · aggregator · Mixed
Lists 293 athletes started and 250 finished in 2018, a non-finisher rate of about 15%, with the men's winner at 4:06:05.
Show 2 more
- Sri Lanka Army: Colombo 2026 reportRaced 2026 · article · Positive
2026 edition at Port City with 388 athletes from Sri Lanka and 48 other countries; no conditions reported.
- Newsfirst: Ironman 70.3 returns to ColomboRaced 2026 · article · Positive
Pre-race coverage: first Colombo race in six years on 22 February 2026, over 1,000 athletes expected (final field was 388).
Sources
Pages we used for facts and ratings. See how we rate.
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