#1
Singapore
ExtremeCities Analyzed
Singapore
Avg. Score5.0/5.0
#2
Thailand
ExtremeCities Analyzed
Bangkok
Avg. Score5.0/5.0
#3
Malaysia
ExtremeCities Analyzed
Kuala Lumpur
Avg. Score5.0/5.0
#4
Vietnam
ExtremeCities Analyzed
Ho Chi Minh City
Avg. Score5.0/5.0
#5
Indonesia
ExtremeCities Analyzed
Jakarta
Avg. Score5.0/5.0
#6
Philippines
ExtremeCities Analyzed
Manila
Avg. Score5.0/5.0
#7
Kenya
ExtremeCities Analyzed
Nairobi
Avg. Score5.0/5.0
#8
India
ExtremeCities Analyzed
MumbaiDelhi
Avg. Score4.5/5.0
#9
Portugal
Very HardCities Analyzed
Lisbon
Avg. Score4.0/5.0
#10
Greece
Very HardCities Analyzed
Athens
Avg. Score4.0/5.0
#11
Hong Kong
Very HardCities Analyzed
Hong Kong
Avg. Score4.0/5.0
#12
Taiwan
Very HardCities Analyzed
Taipei
Avg. Score4.0/5.0
#13
UAE
Very HardCities Analyzed
DubaiAbu Dhabi
Avg. Score4.0/5.0
#14
Qatar
Very HardCities Analyzed
Doha
Avg. Score4.0/5.0
#15
Saudi Arabia
Very HardCities Analyzed
Riyadh
Avg. Score4.0/5.0
Methodology & Data Sources
How we rank "Toughness":
Our proprietary Difficulty Index aggregates data from multiple cities within each region. The score (1-5) is a weighted composite of:
- Climate Severity (40%): Heat/Humidity index or Extreme Cold.
- Elevation Profile (30%): Altitude and average elevation gain of major courses.
- Terrain Technicality (30%): Surface types (cobblestones, trails, asphalt).
Data Sources:
- Climate Data: NOAA & local meteorological records (Avg temps during race months).
- Course Profiles: Elevation maps from Strava/Garmin public segments.
- Race Reports: Aggregated runner feedback on course difficulty.
*Rankings are relative to road running conditions. Ultra-trail events may have separate classifications.
Train for the Extreme.
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