TCS Lidingöloppet 10K or TBK Bank Quad Cities Marathon 10K — which comes out ahead?

TCS Lidingöloppet 10K and TBK Bank Quad Cities Marathon 10K split the available advantages, so the better choice depends on which metric matters most to the runner.

Route comparison snapshot

TCS Lidingöloppet 10K

Mapped route
Held
Elevation profile
Held
course flatness
2.3%
flat grade share
36.0%
lower ascent
162 m
climbing density
16.2 m/km
net elevation
3 m
maximum grade
12.4%

TBK Bank Quad Cities Marathon 10K

Mapped route
Held
Elevation profile
Held
course flatness
0.2% Favoured
flat grade share
92.7% Favoured
lower ascent
29 m
climbing density
2.9 m/km
net elevation
1 m
maximum grade
6.4%
Head-to-head comparison
MetricTCS Lidingöloppet 10KTBK Bank Quad Cities Marathon 10K
Flat grade share36.0%92.7%
GAP factor (% slower than flat)2.3%0.2%
Uphill share31.4%4.0%
Steep-up share7.3%0.0%
Downhill share32.6%3.4%
Total ascent (m)162 m29 m
Climbing density (m/km)16.2 m/km2.9 m/km
Longest climb length (m)700 m570 m
Longest climb gain (m)38 m10 m
Longest climb average grade5.5%1.7%
Total descent (m)159 m28 m
Net elevation (m)3 m1 m
Max absolute grade12.4%6.4%
Start elevation (m)17 m172 m
Finish elevation (m)21 m173 m
Scenic score100/10068/100
Conditions89/10059/100

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
FactTCS Lidingöloppet 10KTBK Bank Quad Cities Marathon 10K
Schedule

Exact race date not confirmed. Event weekend starts 2026-09-25 (legacy event-level date).

Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date).

LocationLidingö, SwedenDavenport, Iowa
Actual distance10 km10 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
TerrainBeachUnavailable
SceneryParkland, Forest, Countryside, Desert, Island, Historic, Waterfront, CoastalCity, Riverside, Waterfront, Island, Historic
AtmosphereFestival, Community, Scenic TourUnavailable
Total ascent162 m29 m
Climbing density16.2 m/km2.9 m/km
Total descent159 m28 m
Net elevation3 m1 m
Max absolute grade12.4%6.4%
Flat grade share36.0%92.7%
GAP factor2.3%0.2%
Entry modelOpenOpen

Schedule

TCS Lidingöloppet 10K

Exact race date not confirmed. Event weekend starts 2026-09-25 (legacy event-level date).

TBK Bank Quad Cities Marathon 10K

Exact race date not confirmed. Event weekend starts 2026-09-27 (legacy event-level date).

Location

TCS Lidingöloppet 10K
Lidingö, Sweden
TBK Bank Quad Cities Marathon 10K
Davenport, Iowa

Actual distance

TCS Lidingöloppet 10K
10 km
TBK Bank Quad Cities Marathon 10K
10 km

raceindex.org mapped route held

TCS Lidingöloppet 10K
Held
TBK Bank Quad Cities Marathon 10K
Held

raceindex.org elevation profile held

TCS Lidingöloppet 10K
Held
TBK Bank Quad Cities Marathon 10K
Held

Terrain

TCS Lidingöloppet 10K
Beach
TBK Bank Quad Cities Marathon 10K
Unavailable

Scenery

TCS Lidingöloppet 10K
Parkland, Forest, Countryside, Desert, Island, Historic, Waterfront, Coastal
TBK Bank Quad Cities Marathon 10K
City, Riverside, Waterfront, Island, Historic

Atmosphere

TCS Lidingöloppet 10K
Festival, Community, Scenic Tour
TBK Bank Quad Cities Marathon 10K
Unavailable

Total ascent

TCS Lidingöloppet 10K
162 m
TBK Bank Quad Cities Marathon 10K
29 m

Climbing density

TCS Lidingöloppet 10K
16.2 m/km
TBK Bank Quad Cities Marathon 10K
2.9 m/km

Total descent

TCS Lidingöloppet 10K
159 m
TBK Bank Quad Cities Marathon 10K
28 m

Net elevation

TCS Lidingöloppet 10K
3 m
TBK Bank Quad Cities Marathon 10K
1 m

Max absolute grade

TCS Lidingöloppet 10K
12.4%
TBK Bank Quad Cities Marathon 10K
6.4%

Flat grade share

TCS Lidingöloppet 10K
36.0%
TBK Bank Quad Cities Marathon 10K
92.7%

GAP factor

TCS Lidingöloppet 10K
2.3%
TBK Bank Quad Cities Marathon 10K
0.2%

Entry model

TCS Lidingöloppet 10K
Open
TBK Bank Quad Cities Marathon 10K
Open

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, TCS Lidingöloppet 10K or TBK Bank Quad Cities Marathon 10K?

TBK Bank Quad Cities Marathon 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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How figures are calculated →