Jul 11, 2026 · 江戸川区
34th Kasai Rinkai Park Night Half Marathon (July)
Half Marathon
C5.6
Signature non-official
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Curated topic
Distinctive non-official races
Boutique and signature events that don't carry an official federation seal but are worth your trip for the scenery, hospitality, or atmosphere.
33 races
Jul 26, 2026 · 男鹿市
38th Japan Sea Melon Marathon
Full·Full Marathon
C5.6
Signature non-official
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Aug 8, 2026
Road to Mt. Fuji Marathon 2026 TATTA RUN Summer Series
Full·Full Marathon
C5.4
Signature non-official
Foreigner Friendly
Aug 29, 2026 · 五島市
40th Goto Islands Sunset Marathon
Full·Full Marathon
C5.4
Signature non-official
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Aug 30, 2026 · 前橋市
45th Akagi Onuma Shirakaba Marathon
Full·Full Marathon
C5.6
Signature non-official
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Sep 6, 2026 · 稚内市
9th Japan's Northernmost Wakkanai Peace Marathon
Full·Full Marathon
C5.8
Signature non-official
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Sep 11, 2026
Kanazawa Marathon 2026 Online
Full·Full Marathon
C5.8
Signature non-official
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Sep 12, 2026 · 東北町
41st Wakasagi Marathon
Full·Full Marathon
C5.8
Signature non-official
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Sep 13, 2026 · 富士吉田市
3rd Mt. Fuji Climb Run
Other
C5.6
Signature non-official
Foreigner Friendly
Sep 13, 2026 · 水戸市
2nd Ibaraki Shine Shine Muscat Run Kairakuen Park
Other
C5.8
Signature non-official
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Sep 20, 2026 · 川内村
11th Kawauchi No Sato Kaeru Marathon
Full·Full Marathon
C5.8
Signature non-official
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Sep 26, 2026 · 彩湖・道満グリーンパーク
86th Vegetable Marathon in Saiko
Full·Full Marathon
C5.8
Signature non-official
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Sep 27, 2026 · 旭川市
2026 Asahikawa Half Marathon
Half Marathon
C5.8
Signature non-official
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Sep 27, 2026 · 前橋市
Maebashi Akagi-yama Hill Climb
Other
C5.6
Signature non-official
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Sep 27, 2026 · 網走市
Okhotsk Abashiri Marathon
Full·Full Marathon
C5.8
Signature non-official
Foreigner Friendly
Oct 11, 2026 · 新宿区
2026 Tokyo Yumemai Marathon (26th)
Full·Full Marathon
C5.8
Signature non-official
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Oct 25, 2026 · 太田市
2026 Joshu Ota Subaru Marathon
Full·Full Marathon
C5.8
Signature non-official
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Oct 25, 2026 · 久米島
2026 Kumejima Marathon
Full·Full Marathon
C5.8
Signature non-official
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Oct 25, 2026 · 島田市
18th Shimada Oigawa Marathon in Liberty
Full·Full Marathon
C5.8
Signature non-official
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Oct 25, 2026 · 西宮市
Nishinomiya Mukogawa Half Marathon
Half Marathon
C5.8
Signature non-official
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Nov 1, 2026 · 台湾台北市
2026 Taiwan National Park Marathon - Yangmingshan
Full·Full Marathon
B6.2
Signature non-official
Foreigner Friendly
Nov 1, 2026 · 守口市
28th Osaka Yodogawa Citizens Marathon
Full·Full Marathon
B6.2
Signature non-official
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Nov 1, 2026 · 天童市
Tendo La France Marathon
Full·Full Marathon
C5.8
Signature non-official
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Nov 1, 2026 · 久留米市
Chikugo River Marathon
Full·Full Marathon
B6.0
Signature non-official
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Nov 7, 2026 · 横浜市
Yokohama North Dock Run
Other
B6.0
Signature non-official
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Nov 14, 2026 · 日光市
11th Nikko National Park Mountain Running
Other
B6.0
Signature non-official
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Nov 22, 2026 · 関市
2026 Cutlery Town Seki City Marathon
Full·Full Marathon
B6.0
Signature non-official
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Nov 29, 2026 · 名古屋市
19th Nagoya Adventure Marathon
Full·Full Marathon
B6.0
Signature non-official
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Nov 29, 2026 · 赤穂市
35th Ako Gishi Marathon
Full·Full Marathon
B6.0
Signature non-official
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Dec 5, 2026 · 大島町
16th Izu Oshima Marathon
Full·Full Marathon
B6.0
Signature non-official
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Dec 6, 2026 · 小野市
Ring of Red 13th Ono Half Marathon
Half Marathon
B6.0
Signature non-official
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Dec 13, 2026 · 大垣市
Ogaki Marathon
Full·Full Marathon
B6.0
Signature non-official
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Dec 20, 2026 · 台湾台北市
2026 Taipei Marathon
Full·Full Marathon
B6.4
Signature non-official
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