Taiwan Ultra-Distance Triathlon Race Analysis: Comparing the Difficulty of Chiayi and Yilan

Taiwan has several representative ultra-distance triathlon events (ultra-triathlon, with distances close to or equivalent to the IRONMAN 140.6 format), among which the Chiayi Ultra-Triathlon and the Yilan Ultra-Triathlon are the two most closely followed by athletes. This article provides an in-depth analysis of the similarities and differences between the two races to help athletes make the best choice.

Ultra-Distance Triathlon Distance Explanation

In Taiwan, “ultra-triathlon” typically refers to a full-distance triathlon:

• Swim: 3.8 km
• Bike: 180 km
• Run: 42.195 km
• Total distance: 226 km (approximately 140 miles)

Chiayi Ultra-Triathlon

Race Overview

• Location: Chiayi County/City (Dongshi, Puzi, Meishan, etc.)
• Date: Approximately April–May each year
• Positioning: A long-distance triathlon in Taiwan with a certain history

Swim Segment Analysis

• Venue: Dongshi Fishing Port or nearby coastal waters
• Water temperature: Approximately 22–26°C, most athletes wear wetsuits
• Sea conditions: On the Taiwan Strait side, may be affected by seasonal wind and waves
• Visibility: Moderate visibility in nearshore waters
• Difficulty: ★★★☆☆

Athlete note: The waters off the Chiayi coast may be affected by currents in spring, so open-water swimming experience is required.

Bike Segment Analysis

• Total distance: 180 km
• Terrain: Predominantly the Chianan Plain, with some sections entering rolling hills
• Total elevation gain: Approximately 800–1,200 meters (adjusted according to the year’s route)
• Road conditions: Mainly rural provincial highways, with acceptable road surface quality
• Aid stations: One every 30–40 km, with ample food and water
• Difficulty: ★★★☆☆ (high proportion of flat terrain)

Signature section: The mountainous section in Meishan Township offers scenic views and is the most challenging part of the race.

Run Segment Analysis

• Route: Chiayi City or around Dongshi Fishing Port
• Terrain: Almost entirely flat
• Temperature: Spring temperatures in Chiayi are approximately 25–30°C, requiring proper sun protection and heat management
• Aid stations: One every 2.5 km, well-equipped
• Difficulty: ★★★☆☆

Chiayi Ultra-Triathlon Overall Rating

Yilan Ultra-Triathlon

Race Overview

• Location: Yilan County (Dongshan River, Su’ao, Jiaoxi, etc.)
• Date: Approximately October–November each year
• Positioning: A long-distance triathlon that has emerged in Taiwan in recent years, known for its beautiful scenery

Swim Segment Analysis

• Venue: Dongshan River or Su’ao Harbor
• Water temperature: Approximately 22–25°C in autumn
• Features: The Dongshan River is an inland river environment with small waves and clear directional cues, making it relatively friendly for first-time full-distance athletes
• Difficulty: ★★☆☆☆ (relatively friendly)

Bike Segment Analysis

• Total distance: 180 km
• Terrain: Yilan Plain + coastal highway, with some sections entering mountainous areas (such as the starting section of the Northern Cross-Island Highway)
• Total elevation gain: Approximately 1,500–2,000 meters
• Signature section: The spectacular coastal views along the Suhua Highway, including the Qingshui Cliff section (if included in the course)
• Difficulty: ★★★★☆ (significantly more climbing than Chiayi)

Important note: If the course includes the Suhua Highway section, athletes need bike-handling skills for high-speed corners.

Run Segment Analysis

• Route: Around the Dongshan River Water Park
• Climate: Autumn in Yilan, temperatures around 20–25°C, relatively cool
• Advantage: Temperatures are more favorable for running than Chiayi’s summer heat
• Difficulty: ★★★☆☆

Yilan Ultra-Triathlon Overall Rating

Comprehensive Comparison of the Two Races

Selection Recommendations

Choose the Chiayi Ultra-Triathlon if you:

• Are attempting your first full-distance triathlon (226 km)
• Are still developing your climbing ability on the bike
• Have your training peak scheduled in spring

Choose the Yilan Ultra-Triathlon if you:

• Already have 70.3 or full-distance finish experience
• Have solid climbing ability on the bike
• Want to complete a full-distance triathlon amid beautiful scenery
• Perform best with autumn training conditions

Whichever race you choose, completing a full-distance 226 km triathlon is one of the most unforgettable achievements of your life. Prepare thoroughly, pace conservatively, and the finish line awaits you!

Related Reading

• Complete Analysis of Taiwan Triathlon Courses: Taitung, Kenting, and Penghu Course Guides
• Taiwan Triathlon Race Recommendations: Athlete Reviews of Kenting, Taitung, and Penghu
• The Complete Penghu Triathlon Experience: An Unforgettable Journey of Pushing Limits in an Island Paradise
• Swim Conditions in Taiwan Triathlon Events: Technical Differences Between Sea Swimming and Lake Swimming