Race review
Set for 4 October 2026 in Surabaya, East Java, this ISOPLUS-branded marathon offers four distances with early-bird registration open. A full marathon in Indonesia's second-largest city.
Last updated August 4, 2026
The Surabaya ISOPLUS Marathon brings a full 42.195km to Surabaya — Indonesia's City of Heroes and the country's second-largest metropolitan area. Four distances (42K, 21K, 10K, 5K) with early-bird registration open. Surabaya is a major running hub with a passionate local community, and the ISOPLUS isotonic-drink brand backing ensures well-stocked hydration stations. October in Surabaya is the dry-season tail — warm but manageable with an early-morning start. For runners wanting a full marathon in Indonesia's great second city, this is the pick.
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Surabaya is Indonesia's second city — a major port and commercial hub with a passionate running community and wide city roads that support a full marathon course. [1] The ISOPLUS brand — Indonesia's popular isotonic drink — means hydration stations are likely to be a highlight. Early-bird registration is open.
A full marathon in Indonesia's second city with open early-bird registration. 4 October 2026 in Surabaya. [1]
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4 October 2026 in Surabaya, East Java, Indonesia. It offers 42.2K, 21.1K, 10K, and 5K. Registration is currently open. It's held at Surabaya (exact venue not stated). Mark it on your calendar if you're planning your racing year around it. [1]
Planning to enter? See the full facts — dates, distances, pricing and registration — on the Surabaya ISOPLUS Marathon 2026 listing.
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