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| Race | 2026 Isle of Wight Marathon - Oct 4 |
|---|---|
| City | Cowes |
| Date | 2026-10-04 at 11:00 |
| Field Size | ~400 runners |
| Time Limit | 6 hours 30 min |
| Cutoff pace | 9:15/km |
| Timezone | Europe/London |
| Official Site | Ryde Harriers |
| Registration | Register · 25 GBP |
| Average Temperature | 13.3°C / 56°F |
|---|---|
| Humidity | 85% |
| Wind | 26.8 km/h |
| Rain Chance | 41% |
| Typical Conditions | A breezy early-October day on an island in the Solent. By the 11:00 start expect around 13C (55F) rising into the low-to-mid teens, with high coastal humidity, a steady sea breeze and a moderate chance of showers blowing through. |
What to Prepare: Dress for low-double-digit Celsius with a throwaway layer for the start, and pack a light waterproof for the exposed western lanes. The wind off the Solent is the main variable — run the climbs by effort, not pace, on this undulating course.
Based on historical averages for race week. Use our Weather Score Calculator and What to Wear Guide for personalized advice.
Wind at 26.8 km/h can affect your marathon pace by 5-15 seconds per kilometer. Headwinds slow you down exponentially — a 20 km/h wind costs more than twice a 10 km/h wind.
Calculate your wind-adjusted pace →Based on 20 years of race-week weather (2005-2024), MERRA-2 reanalysis
| Cooler | Typical | Warmer | |
|---|---|---|---|
| Temperature | 10.6°C | 13.2°C | 16.2°C |
| Dew point | 7.2°C | 10.7°C | 14°C |
Data: NASA POWER (MERRA-2 reanalysis), NASA Langley Research Center
| Course Type | Single lap, open undulating roads, west of the island |
|---|---|
| Elevation Gain | 350m |
| Terrain | Road |
| Profile | Undulating and honestly challenging rather than flat. The single lap rolls through town and rural lanes on the quieter western side of the island, with roughly 350m (about 1,150ft) of total ascent spread across the loop — a notably hillier course than UK PB tracks, so come for heritage and scenery rather than a fast time. |
| Boston Qualifier | Yes — Check your BQ time |
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Use Calculator →It is widely cited as Britain's longest continuously-run marathon, held every year since 1957, and 2026 marks its 70th edition. The organiser, Ryde Harriers, lists it among the world's longest-running marathons (it appeared in the Association of Road Racing Statisticians ranking). "Oldest" is best understood as "longest continuously held" rather than the first ever staged, so the precise claim is its unbroken 70-year run, not that no older race once existed.
The race is a single lap starting and finishing in Cowes (Isle of Wight Community Club, Park Road), on the quieter western side of the island. The loop runs through Gurnard, Rew Street, Porchfield, Shalfleet, Yarmouth, Thorley, Chessell, Ningwood, Northwood and back to Cowes on open town and rural roads. The current course was introduced in 2013 and revised in 2022 — historically the race was based around Ryde, hence its organising club's name.
It is an undulating, genuinely challenging course, not a flat one. Total ascent on the single lap is roughly 350m (about 1,150ft) across the western lanes — less brutal than the original Ryde route but well above flat UK PB courses. See how the rises map against your goal pace with our elevation profile tool.
Entry is open to the public (no ballot) through the Ryde Harriers website, with a small field capped at around 400 runners. Fees are low for a UK marathon — roughly GBP 25-30 depending on whether you are club-affiliated and how early you enter (early-bird from about GBP 23). The entry deadline is late September, but the field is small so enter well ahead.
The marathon starts at 11:00 from Cowes on Sunday 4 October 2026. The overall cut-off is 6 hours 30 minutes, equivalent to roughly 15 minutes per mile, so it suits a wide range of finishers including walkers maintaining that pace. Plan your splits with our pace calculator.
Yes. The course is run under UK Athletics rules and is a measured, certified route (it carries a course-accuracy certificate), so a time set here is valid for Boston qualifying (BQ) and a London Marathon Good For Age (GFA) entry. There is no qualifying standard to get in — your finish time simply counts. Note the hilly profile makes a fast qualifier harder here than on flat courses; check your target with our Good For Age tool.
It is a small, traditional, club-run event — around 200 finishers in recent years — known for scenic island lanes, Solent views and a friendly, low-key atmosphere rather than big-city crowds. Reach the island by passenger or vehicle ferry from the mainland (Southampton and Portsmouth services land near Cowes and Ryde), and most runners arrive the day before given the late-morning start.
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