Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K or Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon — which comes out ahead?

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K has the stronger available profile on flat grade share and course flatness.

Route comparison snapshot

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K

Mapped route
Held
Elevation profile
Held
course flatness
3.2% Favoured
flat grade share
31.8% Favoured
lower ascent
189 m
climbing density
18.9 m/km
net elevation
2 m
maximum grade
16.1%

Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon

Mapped route
Held
Elevation profile
Held
course flatness
5.4%
flat grade share
21.6%
lower ascent
538 m
climbing density
25.5 m/km
net elevation
-7 m
maximum grade
28.1%
Head-to-head comparison
MetricTollymore Extreme (Tollymore Trail Marathon), Newcastle 10KTollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Flat grade share31.8%21.6%
GAP factor (% slower than flat)3.2%5.4%
Uphill share35.8%40.6%
Steep-up share10.8%18.7%
Downhill share32.5%37.8%
Total ascent (m)189 m538 m
Climbing density (m/km)18.9 m/km25.5 m/km
Longest climb length (m)1,110 m1,560 m
Longest climb gain (m)44 m104 m
Longest climb average grade4.0%6.7%
Total descent (m)187 m545 m
Net elevation (m)2 m-7 m
Max absolute grade16.1%28.1%
Start elevation (m)79 m88 m
Finish elevation (m)81 m81 m
ValueUnavailable79/100
Scenic score100/100100/100
Conditions47/10047/100
Entry fee (GBP)Unavailable£60
Lowest modelled true cost (GBP)Unavailable£190

Only metrics available for at least one side are shown. A ✓ marks the better value for each metric (higher-is-better aware). Scores are out of 100 when available. Ascent, climbing density, max absolute grade and median finish describe course or field context and are not marked as better or worse.

Same-distance comparisons are most meaningful; cross-distance metrics are contextual.

Race facts that change the decision

Race facts comparison
FactTollymore Extreme (Tollymore Trail Marathon), Newcastle 10KTollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Schedule

Exact race date not confirmed. Event weekend starts 2026-11-14 (legacy event-level date).

Exact race date not confirmed. Event weekend starts 2026-11-14 (legacy event-level date).

LocationNewcastle, Northern IrelandNewcastle, Northern Ireland
Actual distance10 km21.1 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Course typeLapsLaps
SurfaceMostly forest gravel road/service tracks (often rutted from rain, with leaf litter, fallen branches and mud) plus one short, slippery single Track section.Mostly forest gravel road/service tracks (often rutted from rain, with leaf litter, fallen branches and mud) plus one short, slippery single Track section.
TerrainRoadRoad
SceneryRiverside, Countryside, Mountain, Forest, Historic, Parkland, CoastalCountryside, Mountain, Forest, Historic, Parkland, Coastal, Riverside
Total ascent189 m538 m
Climbing density18.9 m/km25.5 m/km
Total descent187 m545 m
Net elevation2 m-7 m
Max absolute grade16.1%28.1%
Flat grade share31.8%21.6%
GAP factor3.2%5.4%
Entry modelOpenOpen
Entry feeUnavailable£60
Lowest modelled true costUnavailable£190
Cost model originUnavailableNational Average

Schedule

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K

Exact race date not confirmed. Event weekend starts 2026-11-14 (legacy event-level date).

Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon

Exact race date not confirmed. Event weekend starts 2026-11-14 (legacy event-level date).

Location

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Newcastle, Northern Ireland
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Newcastle, Northern Ireland

Actual distance

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
10 km
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
21.1 km

raceindex.org mapped route held

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Held
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Held

raceindex.org elevation profile held

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Held
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Held

Course type

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Laps
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Laps

Surface

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Mostly forest gravel road/service tracks (often rutted from rain, with leaf litter, fallen branches and mud) plus one short, slippery single Track section.
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Mostly forest gravel road/service tracks (often rutted from rain, with leaf litter, fallen branches and mud) plus one short, slippery single Track section.

Terrain

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Road
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Road

Scenery

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Riverside, Countryside, Mountain, Forest, Historic, Parkland, Coastal
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Countryside, Mountain, Forest, Historic, Parkland, Coastal, Riverside

Total ascent

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
189 m
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
538 m

Climbing density

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
18.9 m/km
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
25.5 m/km

Total descent

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
187 m
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
545 m

Net elevation

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
2 m
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
-7 m

Max absolute grade

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
16.1%
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
28.1%

Flat grade share

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
31.8%
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
21.6%

GAP factor

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
3.2%
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
5.4%

Entry model

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Open
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
Open

Entry fee

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Unavailable
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
£60

Lowest modelled true cost

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Unavailable
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
£190

Cost model origin

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K
Unavailable
Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon
National Average

Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.

Common questions

Which is flatter, Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K or Tollymore Extreme (Tollymore Trail Marathon), Newcastle Half Marathon?

Tollymore Extreme (Tollymore Trail Marathon), Newcastle 10K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.

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