Zengwen Reservoir Marathon
Zengwen Reservoir Marathon is listed for December 13, 2026 in Taiwan. Listed distances: Full Marathon. Check registration status, official links, and the runner planning notes below, then confirm final details with the organizer.
About this race
First run in 1983, the Zengwen Reservoir Marathon is Taiwan's longest-running marathon, held each December around Zengwen Reservoir, the island's largest, in the forested mountains straddling Tainan's Nanxi District and Chiayi County. The World Athletics-certified out-and-back course starts at the water-resources office and rolls over Zengwen Bridges 3 and 4, the Zengwen's Eye lookout and the dam crest, with lake-and-mountain views. Distances are 42.195K, 21.3K, 12K and a 3K fun run.
Is this race a fit?
These notes are generated from listed Sunday Marathon race facts. They are meant for shortlisting and planning, not as a replacement for official organizer instructions.
- Date And Schedule
Zengwen Reservoir Marathon is currently listed for December 13, 2026, which makes the December planning window important for training and travel. Recheck official timing before race week.
- Location Base
Plan around Taiwan, then verify the exact start area, finish area, packet pickup, and post-race exit route before booking non-refundable travel.
- Course Fit
Listed course signals include road surface, certified course. Use them to compare effort, pacing risk, and training fit before relying on the race for a specific goal.
- Entry Readiness
No direct registration link is listed here yet; use the official/source link or send a correction if you find the current entry page.
Key facts
- Date
- December 13, 2026
- Location
- Taiwan
- Start area
- Zengwen Reservoir, Taiwan — confirm the exact start with the organizer
- Events
- Full Marathon
- Surface
- Road · Certified
- Certified course
- AIMS / World Athletics
- Official source
- Registration page & official site
- Listing status
- Verified · updated Jul 24, 2026
Before you register
- 1Confirm the race-day schedule
Verify the December 13, 2026 start times, packet pickup (collecting your race bib) and corral (your assigned start group) instructions on the official source before booking travel.
- 2Pin the exact start area
Use Taiwan as the planning region, then confirm the precise start, finish, parking and transport with the organizer.
- 3Pick your distance
Listed options are Full Marathon. Check the source for current per-distance availability and limits.
- 4Review entry terms
Read entry rules, refund terms, participant limits and transfer rules before you pay.
Runner reviews
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