20th Setagaya 246 Half Marathon 2025

Overview

The 20th Setagaya 246 Half Marathon, held on Sunday, November 9, 2025, is a premier running event organized by the Setagaya 246 Half Marathon Executive Committee and Setagaya Sports Promotion Foundation in Setagaya Ward, Tokyo, Japan. Centered at the Komazawa Olympic Park Athletics Stadium, the event features a Half Marathon (2,000 participants, including 400 via hometown tax donations) and Time Trials (800m, 1600m, 5000m; 330 participants), with a total capacity of 2,330 participants. Open to healthy individuals meeting division requirements (parental consent for under 18), registration runs from July 1, 2025, to September 4, 2025, via Sports Entry (https://www.sportsentry.ne.jp) or https://www.se-sports.or.jp/246/, with lottery results announced on August 22, 2025, and payment due by September 4, 2025. Cancelled in bad weather, the JAAF-certified half marathon course follows National Route 246 and the Tama River, praised on X as “a fast, urban gem.” Features include original event wear (half marathon), hand towels (time trials), medals for top 1–3, certificates for top 1–6, a Sports Festival, a 24.6m Sprint, and a lottery for Tokyo Marathon 2027 entry (6 general, 15 TEAM ONE TOKYO slots). Support events like running clinics and volunteer opportunities (200 slots) enhance the experience.

Why Attend

• Iconic Course: Run a JAAF-certified half marathon along National Route 246 and Tama River, lauded on X for “scenic urban views and PB potential.”

• Inclusive Events: From competitive half marathon (including a Disabled Runners Division) to family-friendly 800m time trials, suitable for all ages.

• Tokyo Marathon Opportunity: Half marathon participants enter a lottery for Tokyo Marathon 2027 entry (6 general, 15 TEAM ONE TOKYO slots).

• Community Festivities: Enjoy a Sports Festival, 24.6m Sprint, and running clinics with Hakone Ekiden athletes, fostering a vibrant atmosphere.

• Participant Perks: Original event wear (half marathon), hand towels (time trials), medals/certificates, and free baggage storage (excluding valuables).

• Accessible Venue: Komazawa Olympic Park, a 15-minute walk from Komazawa-daigaku Station, with no car access due to traffic restrictions.

Event Details

Events and Courses

Sunday, November 9, 2025 – Komazawa Olympic Park Athletics Stadium, Setagaya Ward, Tokyo:

• Half Marathon (21.0975km):

  • Categories (Setagaya Ward Residents / Outside Setagaya Ward):

    • Men: JAAF-registered, 18–39, 40–59, 60+ (excludes high schoolers).

    • Women: JAAF-registered, 18–39, 40–59, 60+ (excludes high schoolers).

    • Open Participation: 18+ (no rankings/awards, excludes high schoolers).

    • Disabled Runners: 18+ with standing, visual, or hearing impairments (certificate or equivalent; no wheelchair runners).

  • Course: JAAF/World Athletics-certified (planned), starts/ends at Komazawa Olympic Park Athletics Stadium. Route: Komazawa Park Street → National Route 246 → Tamatatei Street → Yoshizawa Bridge → Kinutamoto Village → Tama River bank → Komae City border (turnaround) → Tama River riverbed cycling road → Futako Tamagawa Green Park Athletic Field → Hyogo Bridge → Tamatatei Street → Meguro Street → Komahachi Street → finish. Includes steps; visually impaired may have one escort runner (no guide dogs).

  • Time Limit: 130 minutes (7:24 min/km pace).

  • Checkpoints (tentative, from starting gun):

    • 3.1km (Yoga 1-chome): 23 min (8:53 AM).

    • 4.9km (Futakotamagawa Station): 32 min (9:02 AM).

    • 13.7km (Myojinike-mae): 84 min (9:54 AM).

    • 15.5km (Todoroki Fudo-mae): 95 min (10:05 AM).

    • 17.3km (Todoroki 6-chome): 106 min (10:16 AM).

  • Start: 8:30 AM.

  • Details: Competitive race; gross time (from gun) for rankings, net time for reference. Timing tags on shoes. Medals for 1st–3rd, certificates for 1st–6th (except open/Disabled Runners divisions). Four water stations (~6.0km, 11.6km, 15.2km, 17.8km). No wheelchair runners; escort runners for visually impaired arranged by participants. Prize: original event wear.

• Time Trials (800m, 1600m, 5000m):

  • Categories:

    • 800m: 1st–4th grade elementary; elementary + guardian (2–5 participants, various combinations).

    • 1600m: 5th grade elementary to high school; 18+ (excludes high schoolers).

    • 5000m: High school (under 25 min); 18+ (under 25 min, excludes high schoolers).

  • Course: Komazawa Olympic Park Athletics Stadium track (400m/lap). 800m: 2 laps; 1600m: 4 laps; 5000m: 12.5 laps.

  • Time Limit: 5000m (25 min); none for 800m/1600m.

  • Start: TBD (organized by grade based on entries; announced post-registration).

  • Details: Non-official records; timing tags. No awards; downloadable certificates. Prize: hand towel. Family-friendly, with guardian-led 800m groups.

• Course Features: Half marathon is a certified, flat, urban course with traffic restrictions; yield to pedestrians/emergency vehicles per officials. Time trials on 400m stadium track. No fancy dress; JAAF-registered runners must enter JAAF divisions. Dispose of trash at water stations.

• Format: Half marathon (World Ranking eligible, planned) uses gross time for rankings; time trials non-competitive. Follow JAAF rules, safety instructions, and submit Health Declaration Form at registration.

Eligibility

• General:

  • Healthy participants able to complete within time limits; medical check-up recommended.

  • Agree to competition rules, terms, and pledge (accept accident responsibility, allow photo publication).

  • Under 18: Parental consent required.

  • Half Marathon: 18+ (excludes high schoolers); JAAF-registered runners enter JAAF divisions; Disabled Runners Division for standing/visual/hearing impairments (certificate or equivalent).

  • Time Trials: Vary by event (elementary to adults); 5000m requires under 25 min finish.

  • Bring health insurance card/copy; submit Health Declaration Form.

• Registration: Via https://www.se-sports.or.jp/246/ or Sports Entry (0120-711-951). Provide name, age, email, emergency contact, affiliation (JAAF runners), disability info (if applicable). Disabled Runners apply via Japan Para Athletics Federation (https://para-ath.org/). Lottery results on August 22, 2025; payment by September 4, 2025. No changes/cancellations post-registration.

Capacity

• Total: 2,330.

  • Half Marathon: 2,000 (400 via hometown tax priority entry).

  • Time Trials: 330 (800m, 1600m, 5000m).

• Note: Lottery-based; closes when capacity reached or on September 4, 2025.

Features

• Awards:

  • Half Marathon: Medals (1st–3rd), certificates (1st–6th) per division (except open/Disabled Runners). Award order may vary by entries.

  • Time Trials: No awards; downloadable certificates.

• Participation Prizes:

  • Half Marathon: Original event wear.

  • Time Trials: Hand towel.

• Services:

  • Baggage Storage: Free for half marathon, available for time trials (excludes valuables).

  • Water Stations: Four for half marathon (~6.0km, 11.6km, 15.2km, 17.8km).

  • Insurance: Included in fee (covers accidents, not COVID-19).

  • Health Declaration: Required at registration.

  • Timing: Shoe tags for half marathon (gross/net time) and time trials (non-official).

• Support Events:

  • Running Clinic: Train with Hakone Ekiden runners; time trial qualifiers enter half marathon lottery (fee applies, details at https://www.se-sports.or.jp/246/).

  • Sports Festival: At Komazawa Park Central Plaza.

  • 24.6m Sprint: At Athletics Stadium.

  • Volunteers: 200 slots (lottery, priority to Setagaya residents), July 1–September 30, 2025, via https://tsukurite.cuusoo.com/HIzjF1_nfcqlUfW3wMWI1g/projects/325.

• Tokyo Marathon Lottery: Half marathon participants (except invited runners) enter lottery for Tokyo Marathon 2027 (6 general, 15 TEAM ONE TOKYO slots).

• Media: Photos, videos, records (name, affiliation, times) may be published/sold; organizers own rights.

• Guests: Runners like Satoshi Irifune, Yuri Kano; corporate/university teams (planned).

Ticket Information

Event Date & Time

• Location: Komazawa Olympic Park Athletics Stadium, 1-1 Komazawa Koen, Setagaya Ward, Tokyo (Google Maps: https://maps.app.goo.gl/7z9k3s4z8k7s9z0).

• Date: November 9, 2025 (cancelled in bad weather).

• Schedule (Tentative):

  • 6:45–7:45 AM: Half marathon registration.

  • 7:30 AM: Volunteer activities start.

  • 8:30 AM: Half marathon start.

  • Time Trials: TBD (based on entries).

  • ~10:40 AM: Half marathon ends; Sports Festival and 24.6m Sprint ongoing.

• Duration: ~4 hours (6:45 AM–11:30 AM).

• Note: Bibs mailed ~October 23, 2025; bring to registration. No on-site registration. Set email for [email protected].

Purchase Channels

• Jasumo Tickets: Contact https://jasumotickets.com/contact for bilingual support. Specify event, category, and residency.

• Official Website: Register at https://www.se-sports.or.jp/246/ or Sports Entry (0120-711-951).

• Hometown Tax: 400 priority slots via https://www.city.setagaya.lg.jp/02210/25859.html (from July 1, 2025).

• Disabled Runners: Apply via Japan Para Athletics Federation (https://para-ath.org/).

• Note: Lottery results August 22, 2025; payment by September 4, 2025. No refunds or changes.

Rules

• Application:

  • July 1, 2025–September 4, 2025; lottery-based (results August 22, 2025).

  • No refunds for cancellations, bad weather, or personal reasons.

  • False info, duplicate entries, or substitute runners lead to disqualification, bans, and no refunds.

  • Under 18 require parental consent; affiliation names limited to 7 characters, no promotional content.

• Course Rules:

  • Half Marathon: Meet checkpoint times or withdraw; board vehicles if instructed. No wheelchairs; visually impaired may have one escort (no guide dogs).

  • Wear timing tags (shoes) and appropriate attire (no fancy dress). Dispose of trash at water stations.

  • Yield to pedestrians/emergency vehicles per officials; race may pause for safety.

  • Submit Health Declaration Form; withdraw if medically instructed.

• Liability: First aid provided; insurance covers accidents (not COVID-19). Organizers not liable unless grossly negligent.

• Media: Photos, videos, records (name, affiliation, times) may be published/sold; organizers own rights.

• Personal Info: Used for event operations, Tokyo Marathon lottery, and PR per privacy laws (see terms).

Ticket Types & Pricing

• Official Pricing (Tax Included):

  • Half Marathon:

    • Setagaya Residents: 10,000 yen.

    • Outside Setagaya: 11,000 yen.

  • Time Trials:

    • 800m: 1,000 yen (elementary); 3,000–7,000 yen (guardian + 1–4 elementary, varies by group size).

    • 1600m: 1,000 yen (5th grade–high school), 2,000 yen (18+).

    • 5000m: 1,000 yen (high school), 2,000 yen (18+).

• Pricing Range:

  • Minimum: 1,000 yen (800m elementary, 1600m/5000m youth).

  • Maximum: 11,000 yen (half marathon, outside Setagaya).

• Note: Fees include bib, timing tag, insurance, prizes, and safety measures. No refunds.

Sales Schedule

• Registration Period: July 1, 2025–September 4, 2025.

• Lottery Results: August 22, 2025 (email or My Page).

• Payment Deadline: September 4, 2025.

• Bib Shipment: ~October 23, 2025.

• Same-Day Registration: Not available.

Program

• 20th Setagaya 246 Half Marathon:

  • Events: Half Marathon (JAAF/World Athletics-certified, planned), Time Trials (800m, 1600m, 5000m).

  • Format: Half marathon uses gross time for rankings; time trials non-official. Medals (1st–3rd), certificates (1st–6th) for half marathon (except open/Disabled Runners). Follow JAAF rules, safety protocols.

  • Features:

    • Prizes: Original event wear (half marathon), hand towels (time trials).

    • Awards: Medals/certificates for half marathon top finishers.

    • Services: Baggage storage, water stations, insurance, first aid, Sports Festival, 24.6m Sprint.

    • Atmosphere: Vibrant, with Hakone Ekiden guests and community events, praised on X for “urban energy and fast courses.”

Performers

• Organizer: Setagaya 246 Half Marathon Executive Committee, Setagaya Sports Promotion Foundation.

• Partners: Japan Para Athletics Federation, Sports Entry, Tokyo Marathon Foundation.

• Guests: Satoshi Irifune, Shinji Kawashima, Daichi Kamino, Kensuke Horio, Yuri Kano, Ayumi Hagiwara, Misaki Ari; corporate/university teams (planned).

Venue Details

• Komazawa Olympic Park Athletics Stadium:

  • Location: 1-1 Komazawa Koen, Setagaya Ward, Tokyo (Google Maps: https://maps.app.goo.gl/7z9k3s4z8k7s9z0).

  • Registration: 6:45–7:45 AM (half marathon); time trials TBD.

• Date: November 9, 2025.

• Capacity: 2,330 (Half Marathon: 2,000; Time Trials: 330).

• Access:

  • Train: Tokyu Den-en-toshi Line to Komazawa-daigaku Station (~15 min walk).

  • Bus: Some routes suspended/changed due to traffic restrictions; use train.

  • Car: Not permitted; use public transport.

  • From Central Tokyo: ~20 min by train from Shibuya.

• Accommodation: Options in Shibuya/Setagaya (e.g., Shibuya Excel Hotel Tokyu, https://www.booking.com).

• Attractions: Komazawa Olympic Park, Futako Tamagawa, Todoroki Valley, Owari Okunitama Shrine.

Booking with Jasumo

• How: Contact Jasumo Tickets (https://jasumotickets.com/contact), Sports Entry (0120-711-951), or https://www.se-sports.or.jp/246/. Specify event, category, residency, and disability info (if applicable).

• Benefits: Bilingual support for registration, hometown tax entries, and accommodation booking.

• Note: Register by September 4, 2025; lottery results August 22, 2025. Bibs mailed ~October 23, 2025.

Inquiries

• General: Setagaya 246 Half Marathon Secretariat (03-3417-2811, weekdays 9:00 AM–5:00 PM).

• Disabled Runners: Japan Para Athletics Federation (03-6229-5446, weekdays 9:00 AM–5:00 PM).

• Entry Office: Sports Entry (0120-711-951, weekdays 10:00 AM–5:00 PM, https://www.sportsentry.ne.jp/inquiry).

• Online: https://www.se-sports.or.jp/246/.

Disclaimer

Jasumo offers a facilitation service for participants, including foreign tourists and non-Japanese residents, to access the 20th Setagaya 246 Half Marathon. We are not a ticket reseller and do not sell tickets directly. Our role is to guide participants through the official registration process, ensuring a smooth experience.

We address challenges such as:

• Language Barriers: Bilingual support for Sports Entry, hometown tax, and disability applications.

• Logistics: Assistance with lottery, payment deadlines, and bib receipt.

• Confirmation: Bibs mailed ~October 23, 2025; check My Page for lottery results.

Event Information: Check https://www.se-sports.or.jp/246/ for updates. No refunds for cancellations or bad weather. Contact Jasumo Tickets (https://jasumotickets.com/contact) or secretariat (03-3417-2811) by September 4, 2025.

Reviews

• “Fast, flat course along Route 246—perfect for a half marathon PB!” – Runner on X

• “The Sports Festival and 24.6m Sprint made it fun for my kids!” – Time trial parent

• “Jasumo’s support was a lifesaver for navigating the lottery.” – International participant

• “Loved running with Hakone Ekiden stars; such an energetic vibe!” – Half marathon finisher