Course
Half Marathon21.1 km
10K10 km
Key dates
- ★Race dayMay 2027 · date to be announced
Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.
About
The Delphi Half Marathon & 10km takes you on a breathtaking journey from County Mayo to the heart of Connemara, along valleys, mountains, waterfalls, and Ireland's only fjord Killary Fjord.
Your next race, seen from above.
Save Delphi Half Marathon to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Save Delphi Half Marathon to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
More races in Mayo All ›
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Achill Half Marathon & 10K Run
Around Ireland's largest island, Achill
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The Great Erris Run
Along Mayo's remote, windswept Erris peninsula
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The Wild Atlantic 10 Miler
Along the Wild Atlantic Way through Belleek Woods
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.