My marathons

上尾シティハーフマラソン (Ageo City Half Marathon)

09:009:00 AM Ageo
Sold out
Ageo
Ageo. Photograph by No machine-readable author provided. Kinori assumed (based on copyright claims)., Public domain via Wikimedia Commons

The course

The half marathon starts on the public road (Kawagoe-Ageo Line) and finishes in the Ageo Athletic Park stadium, on a turnaround course through Ageo that is certified by World Athletics and the JAAF.

The course in short 3 lines
  • A certified turnaround course that ends in a stadiumRoad start, turnaround in Ageo, finish inside Ageo Athletic Park.
  • 2 hours 40 minutes, with a gate at 15 km2:40 overall limit; the 15 km gate closes at 2:00.
  • A field of 5,500 that filled before the window shut5,500 half marathon places; 500 first reserved for Ageo residents.
Course notes 3 short reads on the course
Whole courseFinishA certified turnaround course that ends in a stadiumRoad start, turnaround in Ageo, finish inside Ageo Athletic Park.

The 2026 race is on Sunday 22 November, with the opening ceremony at 8:40, the half marathon at 9:00 and the 5 km at 9:15. The 5 km also starts and finishes in the stadium and turns around in Ageo. The venue is a 20 minute walk from Ageo station on the JR Takasaki Line.

Sourced

Whole courseTactics2 hours 40 minutes, with a gate at 15 km2:40 overall limit; the 15 km gate closes at 2:00.

Entry into the stadium is restricted once the limit has passed. Finishers inside the limit can download a certificate with their net time and finish time. Records are officially recognised in three categories: university men registered with the student federation, and men and women registered with the JAAF.

Sourced

Whole courseCrowdA field of 5,500 that filled before the window shut5,500 half marathon places; 500 first reserved for Ageo residents.

For 2026, 500 places were held for Ageo residents from 1 to 3 July and 5,500 general places followed from 4 July, with the closing day set at 31 August. The organiser announced on 3 August that the half marathon had reached capacity. The fee was 7,000 yen for runners aged 15 and over, junior high school students excepted.

Sourced

Race fuel

Energy gel
An energy gel sachet
Illustration · drag to turn

2 gels for Ageo, plus 1 spare

Finish

One every 40 minutes, by the clock:

  1. km 7.3mile 4.6
  2. km 14.7mile 9.1

Our pick: SiS BETA Fuel gel, box of 6, strawberry and lime. 40 g of carbohydrate a gel, about twice a usual gel, from two kinds of sugar your body takes up side by side.

Easy to forget on race morning: pack them with your bib the night before.

Order now to test one on your last long run.

Get it on Amazon

We earn a small fee if you buy through these links. The price is the same.

In Canada the button opens GU Energy Gel, Salted Caramel, 24-pack, the best seller there.

Outside the Netherlands, Belgium, Germany, Austria and Switzerland, the UK and Ireland, Spain and Portugal, Italy, the rest of the EU and Canada the button opens GU Energy Gel, Chocolate Outrage, 24-pack on Amazon.com, the best seller there.

Anti-chafe
Compeed Anti-blister stick
Photo: Compeed

Compeed

Compeed anti-blister stick, 8 ml

Best selling on Amazon amazon.nl, read 2 Nov

An invisible layer before the start keeps seams, straps and shoes from rubbing skin raw.

Put it on before you leave for the start: heels and toes, inner thighs, under a bra or heart-rate strap.

Try it on a long run first, like everything you use on race day.

Get it on Amazon

We earn a small fee if you buy through these links. The price is the same.

Number belt
A race number belt
Illustration · drag to turn

Compressport Race Belt

Holds your bib without safety pins through your top, with loops for up to 8 gels.

Clip the bib on the night before, so it goes on with your shorts in the morning.

Keep the number on the front, where officials and photographers can see it.

Get it on Amazon

We earn a small fee if you buy through these links. The price is the same.

Electrolytes
A tube of electrolyte tablets
Illustration · drag to turn

SiS Hydro electrolyte tablets, tube of 20

One tablet in a bottle puts back some of the salt you sweat out.

One tablet in 500 ml of water in the hour before the start.

Only if you have used them in training: nothing new on race day.

Get it on Amazon

We earn a small fee if you buy through these links. The price is the same.

Blister plasters
Compeed Blister plasters, medium, 6
Photo: Compeed

Compeed

Compeed blister plasters, medium, 6

Best selling on Amazon amazon.nl, read 2 Nov

One in a pocket cushions a blister if one starts.

Put it on clean, dry skin and leave it until it comes off by itself.

Give a couple to whoever comes to cheer, so they are there at the km you need them.

Get it on Amazon

We earn a small fee if you buy through these links. The price is the same.
distance
21.1 km13.1 mi
cut-off
2:40 h

Race week

Timetable

Sunday 22 November Race day

  1. 08:408:40 AM

    Opening ceremony

  2. Time not published

    Half marathon time limit 2 hours 40 minutes after the gun. Entry into the stadium is restricted after that. The checkpoint at 15.0 km closes 2 hours after the gun. 2:40 limit: 7:35/km for 21.0975 km2:40 limit: 12:12/mi for 13.1 mi
Other races (2)

  1. 09:009:00 AM

    Half marathon start Kawagoe-Ageo road. The half marathon starts on the public road (Kawagoe-Ageo Line) and finishes in the Ageo Athletic Park stadium.

  2. 09:159:15 AM

    5 km start Ageo Athletic Park stadium

Times as published by the organiser, in Ageo time, checked .

Add to calendar .ics file, times in Ageo time

Trip

Getting a place

Sold out for the 2026 race As read 15 October 2026.

Past years and every way in
Every way in, year by year →
Entry details on the organiser’s site →

The organiser, a third party. We take no entries and have no part in the race.

Questions about the 上尾シティハーフマラソン (Ageo City Half Marathon)

When is the 上尾シティハーフマラソン (Ageo City Half Marathon) 2026?

Sunday 22 November 2026. The start is at 09:00.

How do I enter the 上尾シティハーフマラソン (Ageo City Half Marathon)?

The 2026 race is sold out. Entry opened on 1 July 2026. Entry fee: JP¥7,000 (for the 2026 race). Entry details on the organiser’s site

What is the time limit at the 上尾シティハーフマラソン (Ageo City Half Marathon)?

Runners have 2 h 40 min to finish.

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