Fastest Thai marathon runners (42.195 km)
| # | Runner | Time | Race |
|---|---|---|---|
| 1 | Sanchai Namkhet | 2:24:24 | Amazing Thailand Marathon Bangkok 2022 |
| 2 | ณัฐวุฒิ อินนุ่ม (Nattawut Innum) | 2:27:07 | Amazing Thailand Marathon Bangkok 2022 |
| 3 | Nattawut Innum | 2:29:59 | Songkhla Marathon 2025 |
| 4 | Thanathip Dichim | 2:32:30 | Amazing Thailand Marathon Bangkok 2025 |
| 5 | Anuchit Jiw | 2:33:03 | Buriram Marathon 2026 |
Course best at a Thai marathon (all nationalities): 2:08:55 — Titus Kipkosgei 🇰🇪 (Buriram Marathon 2023). See full 42K board →
Fastest Thai half marathon (21.1 km)
| # | Runner | Time | Race |
|---|---|---|---|
| 1 | Nattawut Innum | 1:06:02 | Buriram Marathon 2023 |
| 2 | Sanchai Namkhet | 1:09:17 | Pocari Sweat Run 2026 |
| 3 | Pongsakorn Suksawat | 1:09:25 | Hatyai 21 2025 |
| 4 | Anucha Pada | 1:09:29 | Amazing Thailand Marathon Bangkok 2024 |
How the Thailand rankings work
Marathoner Asia compiles publicly available official race results from timing systems and organizers — including RaceResult, Sportstats and Checkrace — covering major Thai races such as Bangsaen, Buriram Marathon, Amazing Thailand Marathon Bangkok, Songkhla, Korat, Khao Yai, Hatyai and many more.
- We keep each runner's best time per distance and rank them nationally and across ASEAN.
- Events are classified by World Athletics Road Race Label tier (Platinum / Gold / Elite / Label) where applicable.
- Both a Thai-only board and an all-nationalities board (for races held in Thailand) are available.
Frequently asked questions
Who is the fastest Thai marathon runner?
The fastest Thai marathon (42.195 km) time is Sanchai Namkhet, 2:24:24 (Amazing Thailand Marathon Bangkok 2022). The overall fastest marathon at a Thai race is 2:08:55 by Kenya's Titus Kipkosgei (Buriram Marathon 2023).
How are the Thailand marathon rankings compiled?
We aggregate public official results from timing systems and organizers (RaceResult, Sportstats, Checkrace and others), keep each runner's best time per distance, and rank them. Events are tiered by World Athletics label where applicable.
Are these official Thai running records?
No. Marathoner Asia is an independent statistical aggregation for reference. Official records belong to the organizers, timing systems, or the relevant athletics body.
How can I find my own marathon ranking?
Open the Thailand rankings and search your name, or use the Runner Profile to look up your time and national + ASEAN rank for each distance.
Which distances are ranked?
Marathon (42.195K), half marathon (21.1K), 10K and 5K — for both Thai runners and an all-nationalities board.
How many race results are in the database?
More than 609,000 finisher results across 131 events (2016–2026), and growing as new races are added.