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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Swansea
  • Event weekend starts
  • Open entry

Mizuno Swansea Half Marathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2027 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Modelled energy-cost change 0.1% versus flat · net elevation -0 m

View verified GPS mapOfficial event website & entry ↗
Plan my trainingPlan my paceData current as of Source last verified

Decision summary

Mizuno Swansea Half Marathon at a glance

Route ascent
44 m

Lower than 95% of comparable mapped races

Cut-off average pace
11:23/km

4:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.

Typical conditions
77/100

Historical race-date favourability, not a forecast

Evidence depth
32 verified facts

Stored GPS route

Quick answers

What runners ask first

Mizuno Swansea Half Marathon route map

raceindex.org has a GPS course file for Mizuno Swansea Half Marathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.

How hilly is the Mizuno Swansea Half Marathon?

The Mizuno Swansea Half Marathon route has 44 m of ascent, 44 m of descent and an estimated 0.1% grade-adjusted pace penalty versus a flat route.

Where does the Mizuno Swansea Half Marathon route go?

The Mizuno Swansea Half Marathon route starts at Oystermouth Road, near Swansea Arena, Swansea city centre. Underfoot, expect a road course. It passes Swansea Arena, Brangwyn Hall, Swansea Castle, Swansea Museum and The Kingsway.

What should runners know on race day for the Mizuno Swansea Half Marathon?

Bag drop is available. The event uses closed-road arrangements. Expect on-course music. True.

Race character

Scenery

  • Coastal
  • City
  • Waterfront
  • Historic

Atmosphere

  • Scenic Tour
  • Community

Terrain

  • Road
Elevation character
Pancake Flat
Technicality
Non Technical

Entry, logistics and records

Records and field

Men's course record
1:02:53 (Omar Ahmed)

Entry requirements

Entry status
Open entry: The held registration model is open entry and this edition is not marked sold out.
Cut-off
4:00:00

Race day logistics

Pacers
Yes
Bag drop
Yes
Closed roads
Yes
Race village
Yes
Post-race village
Yes
On-course music
Yes

Access and course status

Start
Oystermouth Road, near Swansea Arena, Swansea city centre
Nearest station
Swansea railway station
Parking
City centre car parks managed by third parties; no dedicated event parking.
Measured course
Yes

Course facts

Course type
Loop
Landmarks
Swansea Arena, Brangwyn Hall, Swansea Castle, Swansea Museum, The Kingsway, Mumbles Road, Knab Rock
Notable features
  • One of the flattest half marathons in the UK with an elevation gain of about 36 metres
  • runs from the city to the sea past Swansea Bay with roughly 5 miles of coastline

How hilly is the Mizuno Swansea Half Marathon?

96%
  • Descent 2%
  • Flat 96%
  • Climb 2%
Total ascent
44 m
Net elevation
−0 m
GAP factor
0.1%
Longest climb
410 m at 2.3%
Gradient mix and ascent are derived from the course geometry under our published normalisation, not taken from organiser marketing.

What are typical race-day conditions?

  • 8°CTypical temperature
  • 23 kphTypical wind
  • 4 mmTypical rainfall
  • 77Favourability /100
Typical conditions for the race date and locality, within the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

More race details

Is the Mizuno Swansea Half Marathon flat?

Its normalised GAP factor is 0.1% slower than a flat course, with about 44 m of total ascent.

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (3)

Read the full methodology →

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