Formosa Xtreme Triathlon

Eastern/central Taiwan, Taiwan · November · Other (XTRI World Tour)

Why people love it

Course changed between editions (river vs Sun Moon Lake swim; 112-140 mi bike; 9,186-22,966 ft gain); confirm for 2026
About a 30% finish rate and swim cutoff risk
Cold, altitude and an unlit road at night
Very little independent coverage
Extreme remote logistics

2.7Good

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 satisfactionLoved3.8
An extreme bucket-list race with emotional finishers, but only one independent finisher account and a course that keeps changing. · Low confidence
OrganizationAdequate3.2
A small 150-slot field, but the course (226 km (140 mi) / 140 mi in 2020, 197 km (122 mi) / 122 mi in 2025) and swim venue changed. · Low confidence
First timer friendlyExperts only1.0
About a 30% finish rate, a swim cutoff and a finish at 3,417 m (11,211 ft). · High confidence

PR potentialVery slow1.0
A point-to-point mountain race. A 2025 finisher took 16:32 and about 30% finished. · High confidence
Course easeExtreme1.0
A cold swim, 2,800-4,696 m (9,186-15,407 ft) of climbing and a 43 km (26.7 mi) run to 3,417 m (11,211 ft). Billed as harder than Norseman. · High confidence

2.5Good

Wetsuit odds, water temperature, calm, and the experience of the start. Counts for 15% of the overall score.

Wetsuit legalUsually4.3
The water is called frigid or cold. No figure is published, but mountain water in November is far below 24.5 °C (76.1 °F). · Low confidence
Water temperatureUncomfortable2.4
Described as frigid in marketing and cold in 2025. Mountain-fed water is probably 15-20 °C (59-68 °F), unpublished. · Low confidence
Calm waterSome chop3.2
The organiser says the river has flow. Sun Moon Lake in 2025 would be calm. The venue for 2026 is uncertain. · Low confidence
Swim easeHard2.3
Cold water, possible current and a swim cutoff that finishers fear most. The venue is unclear. · Low confidence
Swim experienceFine3.0
Set in the Xiuguluan river or Sun Moon Lake depending on the year, but cold and stressed by the cutoff. · Low confidence

3.8Very good

Road surface, closures, scenery and wind. Counts for 19% of the overall score.

Road surfaceGood3.6
Paved mountain highways used for the KOM. No complaints found. · Low confidence
Road closuresPartly closed2.8
Likely partial road control. Unconfirmed. · Low confidence
Bike scenerySpectacular4.6
Taroko-area and mountain roads. Little first-hand evidence. · Low confidence
WindMostly calm3.5
No wind data. High mountain exposure. · Low confidence

Bike speedVery slow1.2
Taiwan KOM roads rising to about 2,100 m (6,890 ft), with 2,800-4,696 m (9,186-15,407 ft) of gain depending on the source. · Medium confidence
Bike flatnessMountainous1.0
Climbs to 2,100 m (6,890 ft), with 2,800-4,696 m (9,186-15,407 ft) of gain over about 180-197 km (112-122 mi). · Medium confidence
Bike simplicityTechnical2.2
Long mountain climbs and descents on KOM roads. No specifics. · Low confidence

2.4Below par

Crowds, aid stations, conditions underfoot and scenery. Counts for 13% of the overall score.

Crowd supportLonely1.3
A remote mountain. One finisher felt lonely on an unlit night climb. · Low confidence
Aid stationsStandard3.0
A support-crew model typical of XTRI. No detailed data. · Low confidence
Run sceneryBeautiful4.0
High mountain terrain, but much of it is run at night. · Low confidence
Run conditionsBrutal1.0
Altitude and a freezing dark road with no street lights, after a huge bike. · Medium confidence

Run flatnessBig climbs1.0
A 43 km (26.7 mi) climb to Mt Hehuan at 3,417 m (11,211 ft). · Medium confidence

2.5Below par

Air temperature, how predictable the weather is, setting, and spectating. Counts for 15% of the overall score.

Air temperatureHarsh1.8
Freezing night conditions at altitude near the 3,417 m (11,211 ft) finish, below 12 °C (54 °F) for the run. · Medium confidence
Weather reliabilityUnsettled2.3
Mountain weather and the fringe of typhoon season. November is generally drier, but there is little data. · Low confidence
Venue beautyStunning4.7
Mountain and river scenery near Taroko Gorge. · Medium confidence
Spectator friendlyHard to watch1.4
A point-to-point mountain course with a night finish. · Low confidence

Low altitudeHigh altitude1.0
The finish is at 3,417 m (11,211 ft). · High confidence

2.5Good

Hotels, walkability, getting there, and the town around the race. Counts for 11% of the overall score.

Hotel availabilityBook early3.2
No data. The field is small. · Low confidence
Hotel valueNormal3.4
No data. · Low confidence
WalkabilityMostly driving1.8
Multiple regions, and you will depend on a vehicle. · Low confidence
Travel easeAwkward2.2
Remote from Taipei Taoyuan, with mountain roads, though Taiwan has good transport links. · Low confidence
LogisticsFiddly1.5
Point-to-point with multiple stages and a support crew. The course changed between editions. · Low confidence
Town and foodFine3.4
No data, though Taiwan's food culture is a general positive. · Low confidence

Location: Eastern/central Taiwan, Hualien / Nantou (finish Mt Hehuan), Taiwan
Typical month: November
Latest or next date: 13 November 2026
Organiser: Other (XTRI World Tour)
Field size: About 150 athletes
Distances: 3.8 km (2.4 mi) swim, 180 km (112 mi) bike, 42.2 km (26.2 mi) run
Swim venue: Eastern Taiwan river (official 2026); Sun Moon Lake in 2025 (river)
Swim start: mass
Bike laps: 1
Key climbs: Hehuan / Wuling road; Tataka; Puwu
Run laps: 1
Run shade: None at altitude; cold dark night
Altitude: 3,417 m (11,210 ft)
Nearest airport: Taipei Taoyuan or Taichung (unconfirmed)
Booking: Remote point-to-point; no data found.

TVBS via LINE Today (finisher Acang)Raced 2025 · video · Positive
32-year-old entertainer finished the Nov 2025 edition in 16:32 after training since May. Feared swim cutoff most, found the final Hehuan climb hardest with no street lights and only a headlamp, felt lonely but said it was worth it. Report cites a 30% finish rate.
CommonWealth Smile Taiwan course featureRaced 2020 · article · Positive
From search results: describes the original ~226 km (140 mi) route with ~7,000 m (22,966 ft) of climbing, an Xiuguluan River swim, KOM-style bike and a marathon ending at Hehuan, billed as harder than Norseman. Page not directly readable (403).
Tri247 XTRI arrives in TaiwanRaced 2020 · article · Positive
Launch announcement: first XTRI race in Asia (13th worldwide) organised by WayPoint. Organiser quoted via snippets saying the swim has flow, not a flat lake, and finishers cry at the line. Page not directly readable (403).
XTRI World Tour official event pageRaced 2026 · aggregator · Positive
Official 2026 description: frigid eastern-Taiwan river swim, 180 km (112 mi) bike on the Taiwan KOM roads to 2,100 m (6,890 ft), 43.4 km (27 mi) trail run to Mt Hehuan finish, 150 slots, 200 X-Points. Marketing copy, not an athlete report.

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