Distance
Start Time
Terrain
A relay marathon held on flat, green riverside paths beside Lake Saiko in Toda, Saitama, where teams of five share the 25km distance. The day also includes 2km pair and parent and child runs, and former Olympic athletes and guests take part alongside runners of all levels.
Green riverside setting beside Lake Saiko
Flat park course
Relay format for teams of five
Terrain
Route
Getting There
On the day
Before you enter
Other questions
About three weeks before the event a guidance postcard is sent to the representative's registered address. Bibs and the tasuki are handed over at reception on the day in exchange for the postcard. Postal conditions may cause the timing to vary; even if the postcard does not arrive, you can take part if your entry on the entry site is complete — please come directly to the reception venue on race day.
After entry, no cancellation or refund is possible for any reason.
It goes ahead in rain. In case of snow it may be cancelled depending on conditions.
There is no luggage storage or baggage check service, so please manage your own belongings. We cannot take responsibility for loss or theft.
There is no changing room. Please come already changed.
Entry fee
Registration isn't open yet. We'll show pricing when the organiser confirms.Toda, Japan
Expected March 2028
Provisional date, around Mar 5Are you the organiser of Saiko Relay Marathon 2028?
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