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The Thames Challenge is a captivating multi-stage running event along England s iconic River Thames. Spanning 4 days and 184 miles, this scenic journey features 4 unique ultra-distance races with custom finisher medals. Conquer all 4 stages to earn the coveted full-route medal and achieve your ultra-running goals.
2026-08-09
Cotswolds to Greenwich, UK
Organized by
The Severn Challenge