The Challenge Race is set to take place on September 26, 2026, and promises an exhilarating experience for runners of all levels. Held at the Arakawa Riverbank Marathon Course near the Hotta Bridge Athletics Stadium, this event features a fast course with minimal elevation changes—a perfect setting for achieving personal bests. The race offers several distances including Full Marathon (42.195 km), Half Marathon (21.0975 km), 30K, 10K, and both 5K and 1 Mile events. The course is certified by the Japan Association of Athletics Federations (JAAF) ensuring official timing for all participants. One notable feature of this race is its extensive pacing support system with pacers assigned to twelve different groups based on target times ranging from a conservative pace of four hours twenty minutes down to two and a half hours. This ensures that runners can find the perfect group to help them maintain their desired speed throughout the event, making it accessible for both beginners and elite athletes. The race also offers excellent hydration and nutrition stations along the route. Water stops are placed every 3-4 kilometers with sports drinks and electrolyte tablets available, while solid food options such as energy bars or snacks can be found approximately once per 10K segment of the course. Another highlight is that participants have plenty of time to warm up before the start—registration closes five minutes prior to commencement. This allows runners ample opportunity to prepare physically for their race day performance. The Challenge Race is part of R.LEAGUE, a competitive running program by SpoLive which awards points and tickets based on finish times in various age and gender categories as well as participation in designated events like this one. Runners who register can take advantage of special discounts on entry fees (10% off) when they sign up through the official platform. Additionally, The Challenge Race is a qualifying event for TEAM ONE TOKYO, an initiative by Tokyo Marathon Foundation aimed at providing opportunities to earn entries into major marathons like the Tokyo Marathon itself. Detailed information about how points are accumulated and eligibility criteria can be found on their respective websites. Registration opens seven days before the race date and closes one week prior; entrants must complete all necessary forms online or submit an Excel file containing personal details via email for group registrations. Participants will receive timing chips at check-in, which they need to return post-race. The event includes a comprehensive schedule: from 8 AM onwards until 9 AM is dedicated to registration and warm-up activities; the opening ceremony begins promptly at 9:10 AM followed by lineup formation starting five minutes later. The race kicks off with full marathon runners leading, followed shortly after by half marathons, shorter distances finishing in succession. With competitive pricing ranging from ¥3,300 for a mile run to ¥11,000 for the full marathon distance, this event offers great value alongside exceptional support and amenities. For more detailed information about course maps or specific rules, visit their official webpage. The Challenge Race is not only an athletic challenge but also a community gathering where runners from all walks of life come together to celebrate running in one of Japan's most scenic locations along the Arakawa Riverbank.
Races Offered
1 Mile
Sep 26, 2026
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Distance —
1 Mile
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Running
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6 days remaining
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$21.29
10km
Sep 26, 2026
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Distance —
10K
terrain
Type —
Running
timer
6 days remaining
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$35.48
30km
Sep 26, 2026
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Distance —
30K
terrain
Type —
Running
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6 days remaining
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$49.66
5km
Sep 26, 2026
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Distance —
5K
terrain
Type —
Running
timer
6 days remaining
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$21.29
Full Marathon
Sep 26, 2026
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Distance —
42.2K
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Running
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6 days remaining
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$70.95
Half Marathon
Sep 26, 2026
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Distance —
21.1K
terrain
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Running
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6 days remaining
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$49.66
[R-League Registrants] 30km
Sep 26, 2026
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Distance —
30K
terrain
Type —
Running
timer
6 days remaining
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$45.15
[R-League Registrants] Half Marathon
Sep 26, 2026
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Distance —
21.1K
terrain
Type —
Running
timer
6 days remaining
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$45.15
[R.LEAGUE Registrants] 1 Mile
Sep 26, 2026
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Distance —
R.LEAGUE Registrants 1 Mile
terrain
Type —
Running
timer
6 days remaining
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$19.35
[R.LEAGUE Registrants] 10km
Sep 26, 2026
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Distance —
10K
terrain
Type —
Running
timer
6 days remaining
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$32.25
[R.LEAGUE Registrants] 5km
Sep 26, 2026
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Distance —
5K
terrain
Type —
Running
timer
6 days remaining
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$19.35
[R.LEAGUE Registrants] Full Marathon
Sep 26, 2026
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Distance —
42.2K
terrain
Type —
Running
timer
6 days remaining
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$64.50
Hotels & Places to Stay
Accommodation map unavailable for this event.
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Event name — Tokyo Arakawa Challenge Race 37 | JAAF Recognized Race (【東京荒川】THE CHALLENGE RACE 37｜日本陸連公認レース).
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