Mount Desert Island Marathon, Half & Relay or Bay of Fundy International Marathon — which comes out ahead?

Bay of Fundy International Marathon has the stronger available profile on flat grade share and course flatness.

Route comparison snapshot

Mount Desert Island Marathon, Half & Relay

Mapped route
Held
Elevation profile
Held
course flatness
1.5%
flat grade share
55.5%
lower ascent
526 m
climbing density
12.5 m/km
net elevation
-1 m
maximum grade
18.7%

Bay of Fundy International Marathon

Mapped route
Held
Elevation profile
Held
course flatness
0.9% Favoured
flat grade share
57.1% Favoured
lower ascent
456 m
climbing density
10.8 m/km
net elevation
-27 m
maximum grade
12.5%
Head-to-head comparison
MetricMount Desert Island Marathon, Half & RelayBay of Fundy International Marathon
PB potentialUnavailable81/100
Flat grade share55.5%57.1%
GAP factor (% slower than flat)1.5%0.9%
Uphill share23.8%21.1%
Steep-up share2.7%3.5%
Downhill share20.7%21.8%
Total ascent (m)526 m456 m
Climbing density (m/km)12.5 m/km10.8 m/km
Longest climb length (m)1,840 m730 m
Longest climb gain (m)47 m26 m
Longest climb average grade2.6%3.6%
Total descent (m)527 m484 m
Net elevation (m)-1 m-27 m
Max absolute grade18.7%12.5%
Start elevation (m)15 m33 m
Finish elevation (m)15 m6 m
Median finish context (s)Unavailable4:30:40
Beginner-friendlinessUnavailable77/100
Scenic score100/100100/100
Conditions79/10064/100

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.

Race facts that change the decision

Race facts comparison
FactMount Desert Island Marathon, Half & RelayBay of Fundy International Marathon
Schedule

Exact race date not confirmed. Event weekend starts 2026-10-18 (legacy event-level date).

Exact race date not confirmed. Event weekend starts 2026-06-21 (legacy event-level date).

LocationBar Harbor, MaineLubec, Maine
Actual distance42.2 km42.2 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Course typePoint To PointPoint To Point
SurfacePaved roadsUnavailable
Elevation characterHillyRolling
TerrainRoadRoad
SceneryCoastal, Mountain, Parkland, Desert, Island, Waterfront, Forest, LakesideCoastal, Waterfront, Island, Forest, Countryside
AtmosphereScenic Tour, Destination, CommunityScenic Tour, Destination, Community
TechnicalityNon TechnicalModerate
Total ascent526 m456 m
Climbing density12.5 m/km10.8 m/km
Total descent527 m484 m
Net elevation-1 m-27 m
Max absolute grade18.7%12.5%
Flat grade share55.5%57.1%
GAP factor1.5%0.9%
Cutoff6:30:007:00:00
Latest finishersUnavailable160
Entry modelOpenOpen
Qualifying statusBoston_equivalentBoston_equivalent

Schedule

Mount Desert Island Marathon, Half & Relay

Exact race date not confirmed. Event weekend starts 2026-10-18 (legacy event-level date).

Bay of Fundy International Marathon

Exact race date not confirmed. Event weekend starts 2026-06-21 (legacy event-level date).

Location

Mount Desert Island Marathon, Half & Relay
Bar Harbor, Maine
Bay of Fundy International Marathon
Lubec, Maine

Actual distance

Mount Desert Island Marathon, Half & Relay
42.2 km
Bay of Fundy International Marathon
42.2 km

raceindex.org mapped route held

Mount Desert Island Marathon, Half & Relay
Held
Bay of Fundy International Marathon
Held

raceindex.org elevation profile held

Mount Desert Island Marathon, Half & Relay
Held
Bay of Fundy International Marathon
Held

Course type

Mount Desert Island Marathon, Half & Relay
Point To Point
Bay of Fundy International Marathon
Point To Point

Surface

Mount Desert Island Marathon, Half & Relay
Paved roads
Bay of Fundy International Marathon
Unavailable

Elevation character

Mount Desert Island Marathon, Half & Relay
Hilly
Bay of Fundy International Marathon
Rolling

Terrain

Mount Desert Island Marathon, Half & Relay
Road
Bay of Fundy International Marathon
Road

Scenery

Mount Desert Island Marathon, Half & Relay
Coastal, Mountain, Parkland, Desert, Island, Waterfront, Forest, Lakeside
Bay of Fundy International Marathon
Coastal, Waterfront, Island, Forest, Countryside

Atmosphere

Mount Desert Island Marathon, Half & Relay
Scenic Tour, Destination, Community
Bay of Fundy International Marathon
Scenic Tour, Destination, Community

Technicality

Mount Desert Island Marathon, Half & Relay
Non Technical
Bay of Fundy International Marathon
Moderate

Total ascent

Mount Desert Island Marathon, Half & Relay
526 m
Bay of Fundy International Marathon
456 m

Climbing density

Mount Desert Island Marathon, Half & Relay
12.5 m/km
Bay of Fundy International Marathon
10.8 m/km

Total descent

Mount Desert Island Marathon, Half & Relay
527 m
Bay of Fundy International Marathon
484 m

Net elevation

Mount Desert Island Marathon, Half & Relay
-1 m
Bay of Fundy International Marathon
-27 m

Max absolute grade

Mount Desert Island Marathon, Half & Relay
18.7%
Bay of Fundy International Marathon
12.5%

Flat grade share

Mount Desert Island Marathon, Half & Relay
55.5%
Bay of Fundy International Marathon
57.1%

GAP factor

Mount Desert Island Marathon, Half & Relay
1.5%
Bay of Fundy International Marathon
0.9%

Cutoff

Mount Desert Island Marathon, Half & Relay
6:30:00
Bay of Fundy International Marathon
7:00:00

Latest finishers

Mount Desert Island Marathon, Half & Relay
Unavailable
Bay of Fundy International Marathon
160

Entry model

Mount Desert Island Marathon, Half & Relay
Open
Bay of Fundy International Marathon
Open

Qualifying status

Mount Desert Island Marathon, Half & Relay
Boston_equivalent
Bay of Fundy International Marathon
Boston_equivalent

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, Mount Desert Island Marathon, Half & Relay or Bay of Fundy International Marathon?

Bay of Fundy International Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.

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How figures are calculated →