Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Running · Half Marathons
Swansea Half Marathon 2027
- Race day
- Sunday, 21 March 2027
- Location
- Swansea, Wales, UK
- Distance
- 13.1 mi / 21.1 km
Swansea Half Marathon: 21 March 2027. Entry, the flat Swansea Bay and Mumbles course, a pace calculator.
Swansea Half Marathon Race Timeline
192 days to go
More than 56 days out — a good window to build a consistent base before half-marathon-specific training ramps up.
Swansea Half Marathon 2027: quick answers
When is Swansea Half Marathon 2027?
Swansea Half Marathon 2027 takes place on Sunday, 21 March 2027.
What time does Swansea Half Marathon start?
The official 2027 start time hasn't been published yet. For 2027 — the 2026 race started at 9:10am.
Where does Swansea Half Marathon start and finish?
Swansea Half Marathon starts at Outside Swansea Arena, Swansea city centre and finishes at Museum Green, near Swansea Marina.
How many miles is Swansea Half Marathon?
Swansea Half Marathon is 13.1 miles (21.1km).
How much does Swansea Half Marathon cost to enter?
2026 pricing was £45 for UK Athletics-affiliated runners and £47 for unaffiliated. Confirm 2027 pricing on the official site.
Key Race Metrics & Overview
- Date
- Sunday, 21 March 2027
- Distance
- 13.1 miles / 21.1km
- Location
- Swansea, Wales, UK
- Start Point
- Outside Swansea Arena, Swansea city centre
- Finish Point
- Museum Green, near Swansea Marina
- Surface
- Road and promenade
Not published by the organiser at the time of writing: start time, cut-off time, age requirement, tracking app. Verus records these as unconfirmed rather than estimating them — check the official race website closer to race day.
Direct Entry Summary
2026 pricing was £45 for UK Athletics-affiliated runners and £47 for unaffiliated. Confirm 2027 pricing on the official site.
Ballot Policy
No ballot — entry is direct through the official event site.
Swansea Half Marathon Race Day Weather
A real forecast appears here once one exists for race day — usually about a week to ten days out. Nothing is shown until then, because a made-up forecast is worse than none.
Swansea Half Marathon Route Map & Elevation Profile
Starting at Outside Swansea Arena, Swansea city centre and finishing at Museum Green, near Swansea Marina. Total elevation gain is not published for this event, and Verus does not estimate one.
Is Swansea Half Marathon flat?
Yes — Swansea is widely regarded as one of the flatter half marathons in Wales, with a long flat promenade section along Swansea Bay on the return leg. No official total elevation figure is published, so Verus does not state a number.
Swansea Half Marathon Course Profile
Elevation change not published for this event.
Tap a point on the course for details.
Outside Swansea Arena, Swansea city centre
Start line.
Where Swansea Half Marathon starts and finishes
Swansea Half Marathon starts at Outside Swansea Arena, Swansea city centre and finishes at Museum Green, near Swansea Marina. We haven't been able to place those on a map accurately enough to show one — a pin in the wrong place is worse than no pin.
These are the start and finish points, not the route. Verus doesn't hold course files for this race, and drawing a line between two pins would be a guess you might end up training on. The official course map is the one to use: view it on the organiser's site .
Full Swansea Half Marathon Route Breakdown
Starts in front of Swansea Arena, heads through the city centre onto Oystermouth Road, past St Helen's rugby ground and along Swansea Bay to the village of Mumbles with its pier and lighthouse. Runners then return along a long, flat promenade — the stretch the race is known for as a PB course — before passing Swansea Marina, crossing the Millennium Bridge and finishing near Museum Green.
Swansea Half Marathon Pace Calculator & Splits
Swansea Half Marathon Pace Calculator
Enter a target finish time to see your pace and projected splits.
Average pace / mile
18:19
Average pace / km
11:23
Swansea Half Marathon Pace Chart
Split markers calculated for standard checkpoints — no official pacers are confirmed for this event.
| Target | Pace /mi | Pace /km | 5K | 10K | Finish |
|---|---|---|---|---|---|
| 3:00 | 13:44 | 8:32 | 42:41 | 1:25:23 | 3:00:00 |
| 3:15 | 14:53 | 9:15 | 46:15 | 1:32:30 | 3:15:00 |
| 3:30 | 16:02 | 9:58 | 49:48 | 1:39:37 | 3:30:00 |
| 3:45 | 17:11 | 10:40 | 53:22 | 1:46:43 | 3:45:00 |
| 4:00 | 18:19 | 11:23 | 56:55 | 1:53:50 | 4:00:00 |
| 4:15 | 19:28 | 12:06 | 1:00:29 | 2:00:57 | 4:15:00 |
| 4:30 | 20:37 | 12:48 | 1:04:02 | 2:08:04 | 4:30:00 |
| 4:45 | 21:45 | 13:31 | 1:07:36 | 2:15:11 | 4:45:00 |
| 5:00 | 22:54 | 14:14 | 1:11:09 | 2:22:18 | 5:00:00 |
| 5:30 | 25:11 | 15:39 | 1:18:16 | 2:36:32 | 5:30:00 |
| 6:00 | 27:29 | 17:05 | 1:25:23 | 2:50:46 | 6:00:00 |
| 6:30 | 29:46 | 18:30 | 1:32:30 | 3:04:59 | 6:30:00 |
| 7:00 | 32:04 | 19:55 | 1:39:37 | 3:19:13 | 7:00:00 |
Swansea Half Marathon Finish Time Estimator
Enter a recent 5K, 10K or Half Marathon time to estimate your Swansea Half Marathon finish time.
Your 5K time
Estimated Swansea Half Marathon finish
1:54:55
An estimate only, based on Pete Riegel's race-time prediction formula. Real marathon performance depends on endurance, training specificity, pacing and race-day conditions — not just your speed over a shorter distance.
Training for a different distance? Try the full pace calculator, race time predictor or pace chart.
Got your target time? Save it to your profile.
Tag Swansea Half Marathon, set your goal pace, and let Verus track your countdown, training and fundraising in one place.
Start Your Verus JourneySwansea Half Marathon Race Day Checklist
Tap items to mark off your race-day readiness.
- Race number attached, and any timing chip fitted per your race pack instructions
- Kit for a coastal March morning — the Swansea Bay promenade is fully exposed to wind off the sea
- A plan for reaching Swansea Arena in the city centre before the start
- A meeting point agreed with family and friends near Museum Green for after the race
Training Strategy for Swansea Half Marathon
10-14 weeks is a solid window for a first half marathon; 8-10 weeks is enough if you're already maintaining a baseline mileage. Build your long run up gradually rather than jumping straight to race distance.
This is a largely flat course, so most of your long runs can mirror that — flat and steady, building time on feet rather than hill strength.
Reduce overall mileage across the final 7-10 days while preserving short race-pace bursts. Arrive at Outside Swansea Arena, Swansea city centre fresh, energized, and primed — not fit, fresh.
Lock in your target pace using the interactive splits calculator below — no official pacers are confirmed for this event, so a pace band on your watch is the more reliable option.
Test your race-day fuel and hydration plan on your long training runs, not for the first time on race day — check the Race Day Checklist below for what's actually on this course.
Half Marathon Nutrition & Fueling Plan
A modest increase in carbohydrate intake over the 2-3 days before the race is the conventional approach for a half marathon.
Stick to a carb-focused breakfast, timed 2-3 hours before the start, and make sure it's something you've already tested rather than tried for the first time.
Most runners take on water at the on-course stations; some use a gel around the hour mark. On a flat course it is easy to start too quickly — the promenade rewards patience.
The first hour after finishing is when carbohydrate and protein do the most for recovery.
Swansea Half Marathon Charity Places 2027
Charity places are offered through partner charities in exchange for a fundraising commitment — contact them directly for current terms.
Lead with your personal story — explain why the charity matters to you. Personal connection generates 3x more support than a generic link broadcast.
Share key training milestones on Instagram (first 10-miler, peak week, race week) with your fundraising link in bio. Publicly thanking donors prompts secondary gifts!
Running Swansea Half Marathon for charity?
Link your JustGiving page to Verus and show up right here alongside other Swansea Half Marathon fundraisers — goal, progress and story, all in one place.
Add Your Fundraiser to VerusWhere to Stay for Swansea Half Marathon
Swansea city centre and Marina
Walking distance to both the start and the finish, and the widest choice of places to stay.
Busier and noisier the night before a race.
Mumbles
A quieter seafront base at the turnaround point, with good places to eat.
A journey into the city centre on race morning, on roads that are closing for the race.
Travel & Logistics
Swansea railway station is around a mile from the city-centre start — check current timetables for race-morning services.
Oystermouth Road and the coastal route through to Mumbles close on race morning; exact times are published closer to the day.
Spectator & Cheer Guide
The Swansea Bay promenade gives long sightlines and easy access, and Mumbles is the natural turnaround point to watch from. Museum Green for the finish.
The promenade is walkable and flat, so spectators can move along it to catch runners more than once.
Swansea Half Marathon Frequently Asked Questions
Everything you need to know for race weekend.
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Race details independently compiled and fact-checked by Tommo against the official Swansea Half Marathon site , last verified August 2026. Always confirm official timings and policies directly prior to race day.