Flattest relay route maps

Name: Flattest relay route maps data
Creator: raceindex.org

Which mapped route leads?

Daytona 100 Ultramarathon (Jacksonville Beach to Ponce Inlet) currently leads this mapped-route ranking on flat grade share (100.0%).

65Qualifying routes65Elevation profiles100%Profile share100.0%Top metric

Ranked mapped pages

Featured relay route maps

All relay route maps →

12 DECMAP

Daytona 100 Ultramarathon (Jacksonville Beach to Ponce Inlet)

Florida

Next race12 Dec 2026

Map
Profile
Character

GPS trace: 596 pts / daytona100ultra.com

Coastal
Island
Canyon
Waterfront

Ascent: 39 m
m/km: 0.2 m/km

100.0%Flat grade share

14 FEBMAP

ZeroWind Romeo&Giulietta Run Half Marathon (Verona)

Italy

Next race14 Feb 2027

Map
Profile
Character

GPS trace: 266 pts / www.romeoegiuliettarunhalfmarathon.it

City
Historic
Riverside
Big City

Ascent: 55 m
m/km: 2.6 m/km

96.7%Flat grade share

RelayMAP

Mississippi River Marathon

Mississippi

Map
Profile
Character

GPS trace: 242 pts / msrivermarathon.raceroster.com

Countryside
Lakeside
Riverside
City

Ascent: 36 m
m/km: 1.7 m/km

96.4%Flat grade share

04 APRMAP

Wizz Air Milano Marathon

Italy

Next race4 Apr 2027

Map
Profile
Character

GPS trace: 1,472 pts / www.milanomarathon.it

City
Historic
Parkland
Big City

Ascent: 145 m
m/km: 3.4 m/km

93.7%Flat grade share

18 APRMAP

Vienna City Marathon

Austria

Next race18 Apr 2027

Map
Profile
Character

GPS trace: 731 pts / www.vienna-marathon.com

City
Riverside
Historic
Parkland

Ascent: 118 m
m/km: 2.8 m/km

93.3%Flat grade share

03 APRMAP

JSRC RunAPalooza (Asbury Park Half Marathon)

New Jersey

Next race3 Apr 2027

Map
Profile
Character

GPS trace: 708 pts / www.runapalooza.org

Coastal
Parkland
Waterfront
City

Ascent: 130 m
m/km: 3.1 m/km

93.3%Flat grade share

20 JUNMAP

Tirol läuft (Innsbruck)

Austria

Latest edition20 Jun 2026

Map
Profile
Character

GPS trace: 375 pts / xn--tirol-luft-w5a.com

City
Waterfront
Riverside
Historic

Ascent: 50 m
m/km: 3.3 m/km

93.1%Flat grade share

10 OCTMAP

SPAR Budapest Marathon

Hungary

Next race10 Oct 2026

Map
Profile
Character

GPS trace: 378 pts / marathon.runinbudapest.com

City
Waterfront
Historic
Riverside

Ascent: 188 m
m/km: 4.5 m/km

92.6%Flat grade share

22 MARMAP

Palmetto Relay /200 (Columbia)

South Carolina

Latest edition22 Mar 2024

Map
Profile
Character

GPS trace: 1,191 pts / www.malakseries.com

Waterfront
Countryside
Coastal
Lakeside

Ascent: 993 m
m/km: 3.1 m/km

91.4%Flat grade share

18 JANMAP

Spurs Austin International Half (fka 3M Half Marathon)

Texas

Latest edition18 Jan 2026

Map
Profile
Character

GPS trace: 506 pts / downhilltodowntown.com

City
Riverside
Big City
Competitive

Ascent: 42 m
m/km: 2.0 m/km

90.6%Flat grade share

25 APRMAP

Haspa Marathon Hamburg

Germany

Next race25 Apr 2027

Map
Profile
Character

GPS trace: 689 pts / haspa-marathon-hamburg.de

City
Riverside
Lakeside
Waterfront

Ascent: 155 m
m/km: 3.7 m/km

90.4%Flat grade share

08 NOVMAP

YMCA Harrisburg Marathon, Half, and Relay Presented by Enders Insurance

Pennsylvania

Next race8 Nov 2026

Map
Profile
Character

GPS trace: 417 pts / hbgyrun.org

City
Riverside
Waterfront
Parkland

Ascent: 176 m
m/km: 4.2 m/km

90.3%Flat grade share

14 MARMAP

Run Rome The Marathon

Italy

Next race14 Mar 2027

Map
Profile
Character

GPS trace: 816 pts / www.runromethemarathon.com

City
Historic
Riverside
Big City

Ascent: 135 m
m/km: 3.2 m/km

90.3%Flat grade share

02 MAYMAP

DICK'S Sporting Goods Pittsburgh Marathon

Pennsylvania

Next race2 May 2027

Map
Profile
Character

GPS trace: 540 pts / www.thepittsburghmarathon.com

City
Riverside
Waterfront
Historic

Ascent: 154 m
m/km: 3.6 m/km

90.2%Flat grade share

04 APRMAP

Mein Freiburg Marathon

Germany

Next race4 Apr 2027

Map
Profile
Character

GPS trace: 505 pts / www.mein-freiburgmarathon.de

City
Forest
Waterfront
Historic

Ascent: 105 m
m/km: 5.0 m/km

89.9%Flat grade share

03 MAYMAP

Bari Med Marathon

Italy

Latest edition3 May 2026

Map
Profile
Character

GPS trace: 268 pts / www.barimedmarathon.it

Coastal
Historic
Waterfront
City

Ascent: 97 m
m/km: 4.6 m/km

89.0%Flat grade share

02 MAYMAP

Belfast City Marathon

Northern Ireland

Next race2 May 2027

Map
Profile
Character

GPS trace: 356 pts / www.belfastcitymarathon.com

City
Riverside
Parkland
Waterfront

Ascent: 177 m
m/km: 4.2 m/km

88.2%Flat grade share

25 APRMAP

Mercy Health Glass City Marathon

Ohio

Next race25 Apr 2027

Map
Profile
Character

GPS trace: 786 pts / glasscitymarathon.org

City
Parkland
Riverside
Road

Ascent: 195 m
m/km: 4.6 m/km

88.0%Flat grade share

RelayMAP

Stuttgart-Lauf

Germany

Map
Profile
Character

GPS trace: 330 pts / stuttgart-lauf.de

City
Parkland
Vineyard
Riverside

Ascent: 100 m
m/km: 4.7 m/km

86.7%Flat grade share

13 JUNMAP

Red, White and Blue Half Marathon - Shreveport

Louisiana

Latest edition13 Jun 2026

Map
Profile
Character

GPS trace: 288 pts / runsignup.com

Parkland
Waterfront
City
Community

Ascent: 61 m
m/km: 4.7 m/km

85.9%Flat grade share

27 SEPMAP

TBK Bank Quad Cities Marathon

Iowa

Next race27 Sep 2026

Map
Profile
Character

GPS trace: 536 pts / www.qcmarathon.org

City
Riverside
Waterfront
Island

Ascent: 180 m
m/km: 4.3 m/km

85.7%Flat grade share

17 OCTMAP

Marathon Vert Rennes

France

Next race17 Oct 2026

Map
Profile
Character

GPS trace: 406 pts / www.lemarathonvert.org

City
Historic
Riverside
Big City

Ascent: 192 m
m/km: 4.6 m/km

85.6%Flat grade share

19 SEPMAP

Greifenseelauf Uster

Switzerland

Next race19 Sep 2026

Map
Profile
Character

GPS trace: 1,180 pts / greifenseelauf.ch

Countryside
Lakeside
Moorland
Forest

Ascent: 108 m
m/km: 5.1 m/km

85.4%Flat grade share

01 NOVMAP

Toulouse Métropole Run Experience

France

Next race1 Nov 2026

Map
Profile
Character

GPS trace: 479 pts / harmonie-mutuelle.toulouserunexperience.fr

City
Riverside
Historic
Parkland

Ascent: 209 m
m/km: 5.0 m/km

84.8%Flat grade share

RelayMAP

NN Night Run Ostrava

Czechia

Map
Profile
Character

GPS trace: 336 pts / night-run.cz

City
Riverside
Parkland
Historic

Ascent: 51 m
m/km: 5.1 m/km

83.7%Flat grade share

07 MAYMAP

Helsinki City Marathon

Finland

Next race7 May 2027

Map
Profile
Character

GPS trace: 617 pts / helsinkicityrun.fi

City
Coastal
Waterfront
Parkland

Ascent: 226 m
m/km: 5.4 m/km

82.4%Flat grade share

09 MAYMAP

Generali Genève Marathon

Switzerland

Latest edition9 May 2026

Map
Profile
Character

GPS trace: 461 pts / www.generaligenevemarathon.com

City
Countryside
Lakeside
Waterfront

Ascent: 183 m
m/km: 4.3 m/km

82.3%Flat grade share

24 APRMAP

Energa Gdańsk Maraton

Poland

Next race24 Apr 2027

Map
Profile
Character

GPS trace: 906 pts / gdanskmaraton.com

City
Coastal
Waterfront
Riverside

Ascent: 224 m
m/km: 5.3 m/km

80.6%Flat grade share

13 JUNMAP

Kettle Moraine 100 Endurance Runs

Wisconsin

Latest edition13 Jun 2026

Map
Profile
Character

GPS trace: 1,114 pts / www.kettlemoraine100.com

Countryside
Forest
Lakeside
Riverside

Ascent: 1,034 m
m/km: 6.4 m/km

78.6%Flat grade share

15 MAYMAP

Rimi Riga Marathon

Latvia

Next race15 May 2027

Map
Profile
Character

GPS trace: 562 pts / rimirigamarathon.com

City
Riverside
Historic
Waterfront

Ascent: 273 m
m/km: 6.5 m/km

77.6%Flat grade share

20 SEPMAP

Capital City River Run

Michigan

Next race20 Sep 2026

Map
Profile
Character

GPS trace: 528 pts / ccriverrun.com

City
Riverside
Parkland
Forest

Ascent: 140 m
m/km: 6.7 m/km

76.3%Flat grade share

26 SEPMAP

FirstEnergy Akron Marathon

Ohio

Next race26 Sep 2026

Map
Profile
Character

GPS trace: 254 pts / www.akronmarathon.org

City
Historic
Parkland
Riverside

Ascent: 350 m
m/km: 8.3 m/km

73.4%Flat grade share

06 JUNMAP

Büchl Éjszakai Félmaraton (Győr)

Hungary

Latest edition6 Jun 2026

Map
Profile
Character

GPS trace: 1,338 pts / gyorisport.hu

City
Riverside
Historic
Road

Ascent: 144 m
m/km: 6.8 m/km

72.6%Flat grade share

03 MAYMAP

Milton Keynes Marathon

South East

Latest edition3 May 2026

Map
Profile
Character

GPS trace: 942 pts / www.mkmarathon.com

Parkland
Lakeside
Riverside
City

Ascent: 318 m
m/km: 7.5 m/km

70.5%Flat grade share

08 NOVMAP

Marathon des Alpes-Maritimes Nice-Cannes

France

Next race8 Nov 2026

Map
Profile
Character

GPS trace: 1,298 pts / www.marathon06.com

Coastal
Waterfront
City
Scenic Tour

Ascent: 308 m
m/km: 7.3 m/km

70.4%Flat grade share

RelayMAP

Med City Marathon, presented by ActivePT (Rochester, MN)

Minnesota

Map
Profile
Character

GPS trace: 1,402 pts / www.medcitymarathonmn.com

City
Countryside
Riverside
Forest

Ascent: 319 m
m/km: 7.6 m/km

68.9%Flat grade share

30 APRMAP

Flying Pig Marathon

Ohio

Next race30 Apr 2027

Map
Profile
Character

GPS trace: 361 pts / flyingpigmarathon.com

City
Historic
Vineyard
Riverside

Ascent: 424 m
m/km: 10.0 m/km

68.6%Flat grade share

RelayMAP

NN Ultrabalaton

Hungary

Map
Profile
Character

GPS trace: 1,190 pts / ultrabalaton.hu

Countryside
Coastal
Lakeside
Parkland

Ascent: 2,073 m
m/km: 9.9 m/km

67.4%Flat grade share

26 APRMAP

Rochester Regional Health Flower City Half Marathon

New York

Latest edition26 Apr 2026

Map
Profile
Character

GPS trace: 1,085 pts / www.flowercitychallenge.com

Mountain
Forest
Lakeside
Parkland

Ascent: 200 m
m/km: 9.5 m/km

67.3%Flat grade share

04 OCTMAP

Maine Marathon (Portland)

Maine

Next race4 Oct 2026

Map
Profile
Character

GPS trace: 538 pts / mainemarathon.com

Coastal
Forest
Waterfront
City

Ascent: 357 m
m/km: 8.5 m/km

67.3%Flat grade share

16 OCTMAP

Mankato Marathon

Minnesota

Next race16 Oct 2026

Map
Profile
Character

GPS trace: 1,387 pts / www.mankatomarathon.com

Riverside
Waterfront
Forest
Parkland

Ascent: 423 m
m/km: 10.0 m/km

66.8%Flat grade share

20 FEBMAP

Mississippi Blues Marathon

Mississippi

Next race20 Feb 2027

Map
Profile
Character

GPS trace: 952 pts / msbluesmarathon.events

City
Waterfront
Historic
Parkland

Ascent: 401 m
m/km: 9.5 m/km

65.3%Flat grade share

25 APRMAP

Cedar Rapids Marathon

Iowa

Next race25 Apr 2027

Map
Profile
Character

GPS trace: 470 pts / cedarrapidsmarathon.com

City
Waterfront
Riverside
Historic

Ascent: 454 m
m/km: 10.8 m/km

63.8%Flat grade share

03 OCTMAP

Sparkassen-Phoenix-Halbmarathon Dortmund

Germany

Next race3 Oct 2026

Map
Profile
Character

GPS trace: 908 pts / sparkassen-phoenix-halbmarathon.de

City
Lakeside
Parkland
Historic

Ascent: 205 m
m/km: 9.7 m/km

63.6%Flat grade share

18 APRMAP

Spokane River Run

Washington

Next race18 Apr 2027

Map
Profile
Character

GPS trace: 1,278 pts / runsignup.com

Parkland
Riverside
City
Countryside

Ascent: 925 m
m/km: 18.5 m/km

59.3%Flat grade share

05 DECMAP

Course de l'Escalade (Genève)

Switzerland

Next race5 Dec 2026

Map
Profile
Character

GPS trace: 1,036 pts / escalade.ch

City
Historic
Desert
Parkland

Ascent: 91 m
m/km: 11.8 m/km

58.3%Flat grade share

31 JULMAP

Lean Horse Ultra Marathon

South Dakota

Latest edition31 Jul 2026

Map
Profile
Character

GPS trace: 1,186 pts / leanhorseultra.com

Countryside
Waterfront
Forest
Mountain

Ascent: 1,791 m
m/km: 11.1 m/km

56.8%Flat grade share

18 OCTMAP

Mount Desert Island Marathon, Half & Relay

Maine

Next race18 Oct 2026

Map
Profile
Character

GPS trace: 471 pts / www.runmdi.org

Coastal
Waterfront
Mountain
Parkland

Ascent: 526 m
m/km: 12.5 m/km

55.5%Flat grade share

More flattest relay route maps

Direct links after the featured cards, limited to mapped relay race pages with a publishable flat grade share value.

49Reims Champagne RunFlat grade share 50.1% | Reims, france | elevation profile
50Vltava RunFlat grade share 48.8% | Zadov-Churáňov (Šumava) to Prague (Hamr Braník), czechia | elevation profile
51Lake Tahoe MarathonFlat grade share 46.7% | Incline Village, nevada | elevation profile
52Highland Fling Race (Milngavie)Flat grade share 37.2% | Milngavie, scotland | elevation profile
53Telekom Vivicittá (Budapest)Flat grade share 36.2% | Budapest, hungary | elevation profile
54Endurancelife Classic Quarter (Cornwall Coastal Ultra)Flat grade share 35.6% | Lizard, south-west | elevation profile
55Columbia Gorge MarathonFlat grade share 35.6% | Hood River, oregon | elevation profile
56Fjordkraft Bergen City MarathonFlat grade share 35.4% | Bergen, norway | elevation profile
57Foot Levelers Blue Ridge MarathonFlat grade share 35.2% | Roanoke, virginia | elevation profile
58NipMuck Trail MarathonFlat grade share 34.4% | Ashford, connecticut | elevation profile
59Haulin' Aspen Trail RaceFlat grade share 33.6% | Bend, oregon | elevation profile
60Tecumseh Trail Marathon (Tecumseh Trail Challenge), Nashville IndianaFlat grade share 32.8% | Nashville, indiana | elevation profile
61Adamant Half MarathonFlat grade share 31.1% | Adamant, vermont | elevation profile
62Queen Bee Half Marathon (Cincinnati)Flat grade share 26.9% | Cincinnati, ohio | elevation profile
63Unicaja Ultra Sierra NevadaFlat grade share 13.9% | Granada, spain | elevation profile
64Sljemenski Maraton (Zagreb)Flat grade share 13.6% | Sljeme, Medvednica, Zagreb, croatia | elevation profile
65Tenerife Bluetrail by UTMBFlat grade share 12.7% | Puerto de la Cruz, spain | elevation profile

How flattest relay route maps qualify

A race appears in a route-map collection only when raceindex.org has stored route geometry. Elevation, ascent and GAP values appear only when the route has enough elevation-bearing evidence for a publishable profile; unsupported signals are omitted.

Flattest relay route map questions

What qualifies for flattest relay route maps?

A relay race must have stored route geometry and a publishable flat grade share value to appear in this ranking.

Why are some mapped relay races missing from this ranking?

Mapped races can be missing an elevation-derived metric when their stored route lacks enough elevation-bearing evidence. Unsupported route metrics are omitted rather than inferred.

Which relay race leads this mapped-route ranking?

Daytona 100 Ultramarathon (Jacksonville Beach to Ponce Inlet) leads this route-map ranking with flat grade share 100.0%.

Loading page

Which mapped route leads?

Featured relay route maps

Daytona 100 Ultramarathon (Jacksonville Beach to Ponce Inlet)

ZeroWind Romeo&Giulietta Run Half Marathon (Verona)

Mississippi River Marathon

Wizz Air Milano Marathon

Vienna City Marathon

JSRC RunAPalooza (Asbury Park Half Marathon)

Tirol läuft (Innsbruck)

SPAR Budapest Marathon

Palmetto Relay /200 (Columbia)

Spurs Austin International Half (fka 3M Half Marathon)

Haspa Marathon Hamburg

YMCA Harrisburg Marathon, Half, and Relay Presented by Enders Insurance

Run Rome The Marathon

DICK'S Sporting Goods Pittsburgh Marathon

Mein Freiburg Marathon

Bari Med Marathon

Belfast City Marathon

Mercy Health Glass City Marathon

Stuttgart-Lauf

Red, White and Blue Half Marathon - Shreveport

TBK Bank Quad Cities Marathon

Marathon Vert Rennes

Greifenseelauf Uster

Toulouse Métropole Run Experience

NN Night Run Ostrava

Helsinki City Marathon

Generali Genève Marathon

Energa Gdańsk Maraton

Kettle Moraine 100 Endurance Runs

Rimi Riga Marathon

Capital City River Run

FirstEnergy Akron Marathon

Büchl Éjszakai Félmaraton (Győr)

Milton Keynes Marathon

Marathon des Alpes-Maritimes Nice-Cannes

Med City Marathon, presented by ActivePT (Rochester, MN)

Flying Pig Marathon

NN Ultrabalaton

Rochester Regional Health Flower City Half Marathon

Maine Marathon (Portland)

Mankato Marathon

Mississippi Blues Marathon

Cedar Rapids Marathon

Sparkassen-Phoenix-Halbmarathon Dortmund

Spokane River Run

Course de l'Escalade (Genève)

Lean Horse Ultra Marathon

Mount Desert Island Marathon, Half & Relay

More flattest relay route maps

How flattest relay route maps qualify

Methodology

Data coverage

Flattest relay route map questions

What qualifies for flattest relay route maps?

Why are some mapped relay races missing from this ranking?

Which relay race leads this mapped-route ranking?

Which mapped route leads?

Featured relay route maps

Daytona 100 Ultramarathon (Jacksonville Beach to Ponce Inlet)

ZeroWind Romeo&Giulietta Run Half Marathon (Verona)

Mississippi River Marathon

Wizz Air Milano Marathon

Vienna City Marathon

JSRC RunAPalooza (Asbury Park Half Marathon)

Tirol läuft (Innsbruck)

SPAR Budapest Marathon

Palmetto Relay /200 (Columbia)

Spurs Austin International Half (fka 3M Half Marathon)

Haspa Marathon Hamburg

YMCA Harrisburg Marathon, Half, and Relay Presented by Enders Insurance

Run Rome The Marathon

DICK'S Sporting Goods Pittsburgh Marathon

Mein Freiburg Marathon

Bari Med Marathon

Belfast City Marathon

Mercy Health Glass City Marathon

Stuttgart-Lauf

Red, White and Blue Half Marathon - Shreveport