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About RaceIndexOur methodologyData coverageCyclingTriathlon

Flattest marathons

The flattest marathons, ranked from trusted raw-elevation route profiles across 138 qualifying races.

Ranking current as of

Which race ranks first — and why is it Naturosa Catania Marathon?

Naturosa Catania Marathon leads this ranking on flat grade share (100.0%).

Compare Naturosa Catania Marathon vs Zürich Marathon

#RaceFlat grade shareAscentClimb densityDescentNet elevationMax absolute gradeAs of
1Naturosa Catania Marathon - italy100.0%12 m0.3 m/km12 m0 m2.0%
2Zürich Marathon - switzerland98.2%66 m1.6 m/km68 m-2 m5.9%
3The Woodlands Marathon - texas98.1%86 m2.0 m/km88 m-2 m3.6%
4Jersey City Marathon & Half Marathon - new-jersey97.6%68 m1.6 m/km69 m0 m4.9%
5Bath & Bristol Railway Races Marathon - south-west97.6%98 m2.3 m/km97 m1 m6.7%
6Mississippi River Marathon - mississippi97.5%59 m1.4 m/km57 m2 m6.1%
7Idaho Falls Marathon - idaho96.4%69 m1.6 m/km52 m15 m10.9%
8Padova Marathon - italy95.8%96 m2.3 m/km97 m-1 m7.2%
9Nagyerdei Terep Maraton (Debrecen) Marathon - hungary95.8%125 m2.9 m/km121 m3 m8.0%
10Maratona di Pisa Marathon - italy95.5%105 m2.5 m/km101 m5 m5.3%
11Martian Invasion of Races Marathon - michigan94.9%124 m2.9 m/km124 m0 m6.6%
12Novant Health Wilmington Marathon - north-carolina94.8%109 m2.6 m/km110 m-0 m6.8%
13NLB Ljubljana Marathon - slovenia94.6%112 m2.7 m/km113 m-1 m7.0%
14MountainOne Steel Rail Races (Adams) Marathon - massachusetts93.7%128 m3.0 m/km128 m-0 m6.8%
15Wizz Air Milano Marathon - italy93.7%145 m3.4 m/km136 m9 m6.2%
16Poznań Maraton im. Macieja Frankiewicza Marathon - poland93.3%156 m3.7 m/km157 m-1 m3.9%
17Vienna City Marathon - austria93.3%118 m2.8 m/km108 m11 m6.6%
18Debrecen Maraton Marathon - hungary92.9%119 m2.8 m/km119 m0 m2.9%
19SPAR Budapest Marathon - hungary92.6%188 m4.5 m/km182 m5 m15.5%
20Stockholm Marathon - sweden91.9%166 m3.9 m/km166 m-0 m5.2%
21Termal Bologna Marathon - italy91.5%187 m4.4 m/km171 m16 m5.6%
22Haspa Marathon Hamburg - germany90.4%155 m3.7 m/km155 m0 m5.5%
23YMCA Harrisburg Marathon, Half, and Relay Presented by Enders Insurance - pennsylvania90.3%176 m4.2 m/km176 m-0 m11.8%
24Run Rome The Marathon - italy90.3%135 m3.2 m/km144 m-9 m9.9%
25DICK'S Sporting Goods Pittsburgh Marathon - pennsylvania90.2%154 m3.6 m/km154 m0 m12.0%
26Maratona do Funchal (Funchal Marathon) - portugal90.1%134 m3.2 m/km181 m-46 m6.2%
27Mein Freiburg Marathon - germany89.8%211 m5.0 m/km210 m1 m6.2%
28Sunrise Marathon | Halfmarathon Brno - czechia88.9%176 m4.2 m/km176 m-0 m6.4%
29SwissCityMarathon – Lucerne Marathon - switzerland88.6%162 m3.8 m/km163 m-2 m7.8%
30Belfast City Marathon - northern-ireland88.2%177 m4.2 m/km198 m-22 m5.4%
31Mercy Health Glass City Marathon - ohio88.2%177 m4.2 m/km176 m1 m6.7%
32Trieste Spring Run Marathon - italy87.9%205 m4.9 m/km204 m0 m21.0%
33Paavo Nurmi Marathon - finland86.9%179 m4.2 m/km181 m-2 m10.9%
34Omaha Marathon - nebraska86.8%215 m5.1 m/km216 m-1 m11.5%
35Chester Marathon - north-west86.3%220 m5.2 m/km217 m3 m7.8%
36TBK Bank Quad Cities Marathon - iowa85.7%180 m4.3 m/km185 m-5 m9.0%
37Marathon Vert Rennes - france85.6%192 m4.6 m/km191 m1 m7.8%
38Cleveland Marathon - ohio85.6%232 m5.5 m/km233 m0 m31.4%
39Copenhagen Marathon - denmark85.3%220 m5.2 m/km219 m-0 m5.4%
40Toulouse Métropole Run Experience Marathon - france84.8%209 m5.0 m/km219 m-10 m8.5%
41Maine Coast Marathon - maine84.2%219 m5.2 m/km217 m1 m8.6%
42Endurancelife Suffolk (Dunwich) Marathon - east-of-england83.9%219 m5.1 m/km218 m0 m7.7%
43Allianz Richmond Marathon - virginia83.3%236 m5.6 m/km272 m-36 m16.1%
44Michelob Ultra El Paso Marathon - texas83.0%256 m6.1 m/km255 m1 m12.5%
45Thames Meander Marathon (London) - london82.8%274 m6.5 m/km274 m0 m6.1%
46Helsinki City Marathon - finland82.4%226 m5.4 m/km220 m6 m8.3%
47Generali Genève Marathon - switzerland82.3%183 m4.3 m/km236 m-53 m9.0%
48Garmin New Forest Marathon - south-east81.7%246 m5.8 m/km247 m-1 m5.5%
49Hoag OC Marathon Running Festival - california81.6%182 m4.3 m/km214 m-32 m8.7%
50Midnattssolmaraton (Midnight Sun Marathon), Tromsø - norway81.1%242 m5.7 m/km241 m2 m7.5%
51Energa Gdańsk Maraton Marathon - poland80.9%227 m5.4 m/km228 m-1 m7.8%
52Tupelo Marathon - mississippi79.5%243 m5.8 m/km242 m1 m7.1%
53Regensburg Marathon - germany79.4%247 m5.9 m/km247 m-0 m9.3%
54Trondheim Maraton Marathon - norway79.0%253 m6.0 m/km252 m1 m10.7%
55Madison Marathon (Madison, Wisconsin) - wisconsin78.8%243 m5.7 m/km236 m6 m12.1%
56Windermere Marathon (Spokane) - washington78.6%226 m5.4 m/km304 m-78 m13.4%
57Amica Newport Marathon & Half Marathon - rhode-island78.5%270 m6.4 m/km271 m-0 m8.1%
58Southampton Marathon - south-east78.4%279 m6.6 m/km265 m14 m9.7%
59Rimi Riga Marathon - latvia77.6%273 m6.5 m/km272 m1 m20.5%
60The Great Bangor Marathon & Half (Bangor, Maine) - maine77.4%269 m6.4 m/km280 m-10 m9.9%
61Montpellier Run Festival Marathon - france76.7%303 m7.2 m/km290 m12 m9.7%
62Marshall University Marathon - west-virginia75.8%330 m7.8 m/km332 m-2 m18.7%
63The Original Las Vegas Marathon - nevada75.4%331 m7.8 m/km331 m0 m11.9%
64Montana Marathon (Billings) - montana74.5%193 m4.6 m/km446 m-253 m15.6%
65TUI Μαραθώνιος Ρόδου (TUI Rhodes Marathon) - greece73.9%296 m7.0 m/km294 m3 m10.1%
66Athens Marathon. The Authentic - greece73.8%333 m7.9 m/km274 m59 m7.6%
67FirstEnergy Akron Marathon - ohio73.4%350 m8.3 m/km355 m-6 m13.8%
68Sioux Falls Marathon - south-dakota73.2%305 m7.2 m/km307 m-2 m13.6%
69DNB Oslo Marathon - norway72.0%307 m7.3 m/km308 m-0 m6.7%
70Two Tunnels Railway Races Marathon - south-west71.5%415 m9.8 m/km413 m2 m21.0%
71Albany COMBOS Marathon & Half Marathon - georgia70.7%333 m7.9 m/km337 m-4 m13.0%
72Milton Keynes Marathon - south-east70.5%318 m7.5 m/km320 m-2 m7.8%
73Marathon des Alpes-Maritimes Nice-Cannes - france70.4%308 m7.3 m/km310 m-2 m11.8%
74Zurich Rock 'n' Roll Running Series Madrid Marathon - spain69.5%335 m7.9 m/km362 m-26 m8.7%
75Flying Pig Marathon - ohio68.6%424 m10.0 m/km427 m-4 m32.4%
76The Asheville Marathon & Half - north-carolina67.6%312 m7.4 m/km374 m-61 m8.9%
77Maine Marathon (Portland) - maine67.3%357 m8.5 m/km358 m0 m15.5%
78Maui Oceanfront Marathon - hawaii66.9%392 m9.3 m/km413 m-21 m17.4%
79Arctic Marathon (Rovaniemi) - finland65.3%392 m9.3 m/km391 m-0 m11.9%
80Mississippi Blues Marathon - mississippi65.3%401 m9.5 m/km399 m2 m10.2%
81Bend Marathon and Half - oregon65.1%388 m9.2 m/km388 m0 m16.6%
82Cedar Rapids Marathon - iowa63.8%454 m10.8 m/km455 m-1 m15.8%
83Richmond Park Marathon (London) - london63.0%423 m10.0 m/km417 m6 m15.3%
84The New Hampshire Marathon at Newfound Lake - new-hampshire61.4%412 m9.8 m/km408 m4 m12.0%
856 sjöar (Uppsala) Marathon - sweden61.2%426 m10.1 m/km427 m-1 m22.4%
86Reims Champagne Run Marathon - france60.8%389 m9.3 m/km551 m-161 m17.4%
87Run the Rainbow for Children's Marathon - mississippi60.6%407 m9.7 m/km407 m0 m10.6%
88Connemara International Marathon (Connemarathon) - ireland59.7%451 m10.7 m/km443 m8 m19.5%
89Clonakilty Waterfront Marathon - ireland57.3%493 m11.7 m/km497 m-4 m13.0%
90Bay of Fundy International Marathon - maine57.1%456 m10.8 m/km484 m-27 m12.5%
91Estes Park Marathon and Half Marathon - colorado56.3%256 m6.1 m/km735 m-479 m15.1%
92Mount Desert Island Marathon, Half & Relay - maine55.5%526 m12.5 m/km527 m-1 m18.7%
93Run Woodstock Marathon - michigan53.7%547 m13.0 m/km546 m1 m13.5%
94Portland Coastal Marathon - south-west53.2%715 m16.9 m/km715 m-0 m33.0%
95The Hawk Hundred (Lawrence) Marathon - kansas52.7%495 m11.7 m/km487 m8 m14.3%
96The Kauai Marathon & Half Marathon - hawaii48.1%607 m14.4 m/km612 m-5 m24.0%
97Jungfrau-Marathon Interlaken - switzerland47.7%1,960 m46.5 m/km200 m1,761 m35.4%
98Lake Tahoe Marathon - nevada46.8%737 m17.5 m/km733 m4 m46.1%
99Norfolk Festival of Running (King's Lynn) Marathon - east-of-england45.4%558 m13.2 m/km558 m-0 m9.8%
100Stavanger Marathon - norway45.1%862 m20.4 m/km887 m-25 m87.3%
1
Naturosa Catania Marathonitaly
Flat grade share
100.0%
Ascent
12 m
Climb density
0.3 m/km
Descent
12 m
Net elevation
0 m
Max absolute grade
2.0%

As of

2
Zürich Marathonswitzerland
Flat grade share
98.2%
Ascent
66 m
Climb density
1.6 m/km
Descent
68 m
Net elevation
-2 m
Max absolute grade
5.9%

As of

3
The Woodlands Marathontexas
Flat grade share
98.1%
Ascent
86 m
Climb density
2.0 m/km
Descent
88 m
Net elevation
-2 m
Max absolute grade
3.6%

As of

6
Mississippi River Marathonmississippi
Flat grade share
97.5%
Ascent
59 m
Climb density
1.4 m/km
Descent
57 m
Net elevation
2 m
Max absolute grade
6.1%

As of

7
Idaho Falls Marathonidaho
Flat grade share
96.4%
Ascent
69 m
Climb density
1.6 m/km
Descent
52 m
Net elevation
15 m
Max absolute grade
10.9%

As of

8
Padova Marathonitaly
Flat grade share
95.8%
Ascent
96 m
Climb density
2.3 m/km
Descent
97 m
Net elevation
-1 m
Max absolute grade
7.2%

As of

10
Maratona di Pisa Marathonitaly
Flat grade share
95.5%
Ascent
105 m
Climb density
2.5 m/km
Descent
101 m
Net elevation
5 m
Max absolute grade
5.3%

As of

12
Novant Health Wilmington Marathonnorth-carolina
Flat grade share
94.8%
Ascent
109 m
Climb density
2.6 m/km
Descent
110 m
Net elevation
-0 m
Max absolute grade
6.8%

As of

13
NLB Ljubljana Marathonslovenia
Flat grade share
94.6%
Ascent
112 m
Climb density
2.7 m/km
Descent
113 m
Net elevation
-1 m
Max absolute grade
7.0%

As of

15
Wizz Air Milano Marathonitaly
Flat grade share
93.7%
Ascent
145 m
Climb density
3.4 m/km
Descent
136 m
Net elevation
9 m
Max absolute grade
6.2%

As of

17
Vienna City Marathonaustria
Flat grade share
93.3%
Ascent
118 m
Climb density
2.8 m/km
Descent
108 m
Net elevation
11 m
Max absolute grade
6.6%

As of

18
Debrecen Maraton Marathonhungary
Flat grade share
92.9%
Ascent
119 m
Climb density
2.8 m/km
Descent
119 m
Net elevation
0 m
Max absolute grade
2.9%

As of

19
SPAR Budapest Marathonhungary
Flat grade share
92.6%
Ascent
188 m
Climb density
4.5 m/km
Descent
182 m
Net elevation
5 m
Max absolute grade
15.5%

As of

20
Stockholm Marathonsweden
Flat grade share
91.9%
Ascent
166 m
Climb density
3.9 m/km
Descent
166 m
Net elevation
-0 m
Max absolute grade
5.2%

As of

21
Termal Bologna Marathonitaly
Flat grade share
91.5%
Ascent
187 m
Climb density
4.4 m/km
Descent
171 m
Net elevation
16 m
Max absolute grade
5.6%

As of

22
Haspa Marathon Hamburggermany
Flat grade share
90.4%
Ascent
155 m
Climb density
3.7 m/km
Descent
155 m
Net elevation
0 m
Max absolute grade
5.5%

As of

24
Run Rome The Marathonitaly
Flat grade share
90.3%
Ascent
135 m
Climb density
3.2 m/km
Descent
144 m
Net elevation
-9 m
Max absolute grade
9.9%

As of

27
Mein Freiburg Marathongermany
Flat grade share
89.8%
Ascent
211 m
Climb density
5.0 m/km
Descent
210 m
Net elevation
1 m
Max absolute grade
6.2%

As of

30
Belfast City Marathonnorthern-ireland
Flat grade share
88.2%
Ascent
177 m
Climb density
4.2 m/km
Descent
198 m
Net elevation
-22 m
Max absolute grade
5.4%

As of

32
Trieste Spring Run Marathonitaly
Flat grade share
87.9%
Ascent
205 m
Climb density
4.9 m/km
Descent
204 m
Net elevation
0 m
Max absolute grade
21.0%

As of

33
Paavo Nurmi Marathonfinland
Flat grade share
86.9%
Ascent
179 m
Climb density
4.2 m/km
Descent
181 m
Net elevation
-2 m
Max absolute grade
10.9%

As of

34
Omaha Marathonnebraska
Flat grade share
86.8%
Ascent
215 m
Climb density
5.1 m/km
Descent
216 m
Net elevation
-1 m
Max absolute grade
11.5%

As of

35
Chester Marathonnorth-west
Flat grade share
86.3%
Ascent
220 m
Climb density
5.2 m/km
Descent
217 m
Net elevation
3 m
Max absolute grade
7.8%

As of

36
TBK Bank Quad Cities Marathoniowa
Flat grade share
85.7%
Ascent
180 m
Climb density
4.3 m/km
Descent
185 m
Net elevation
-5 m
Max absolute grade
9.0%

As of

37
Marathon Vert Rennesfrance
Flat grade share
85.6%
Ascent
192 m
Climb density
4.6 m/km
Descent
191 m
Net elevation
1 m
Max absolute grade
7.8%

As of

38
Cleveland Marathonohio
Flat grade share
85.6%
Ascent
232 m
Climb density
5.5 m/km
Descent
233 m
Net elevation
0 m
Max absolute grade
31.4%

As of

39
Copenhagen Marathondenmark
Flat grade share
85.3%
Ascent
220 m
Climb density
5.2 m/km
Descent
219 m
Net elevation
-0 m
Max absolute grade
5.4%

As of

41
Maine Coast Marathonmaine
Flat grade share
84.2%
Ascent
219 m
Climb density
5.2 m/km
Descent
217 m
Net elevation
1 m
Max absolute grade
8.6%

As of

43
Allianz Richmond Marathonvirginia
Flat grade share
83.3%
Ascent
236 m
Climb density
5.6 m/km
Descent
272 m
Net elevation
-36 m
Max absolute grade
16.1%

As of

44
Michelob Ultra El Paso Marathontexas
Flat grade share
83.0%
Ascent
256 m
Climb density
6.1 m/km
Descent
255 m
Net elevation
1 m
Max absolute grade
12.5%

As of

46
Helsinki City Marathonfinland
Flat grade share
82.4%
Ascent
226 m
Climb density
5.4 m/km
Descent
220 m
Net elevation
6 m
Max absolute grade
8.3%

As of

47
Generali Genève Marathonswitzerland
Flat grade share
82.3%
Ascent
183 m
Climb density
4.3 m/km
Descent
236 m
Net elevation
-53 m
Max absolute grade
9.0%

As of

48
Garmin New Forest Marathonsouth-east
Flat grade share
81.7%
Ascent
246 m
Climb density
5.8 m/km
Descent
247 m
Net elevation
-1 m
Max absolute grade
5.5%

As of

49
Hoag OC Marathon Running Festivalcalifornia
Flat grade share
81.6%
Ascent
182 m
Climb density
4.3 m/km
Descent
214 m
Net elevation
-32 m
Max absolute grade
8.7%

As of

51
Energa Gdańsk Maraton Marathonpoland
Flat grade share
80.9%
Ascent
227 m
Climb density
5.4 m/km
Descent
228 m
Net elevation
-1 m
Max absolute grade
7.8%

As of

52
Tupelo Marathonmississippi
Flat grade share
79.5%
Ascent
243 m
Climb density
5.8 m/km
Descent
242 m
Net elevation
1 m
Max absolute grade
7.1%

As of

53
Regensburg Marathongermany
Flat grade share
79.4%
Ascent
247 m
Climb density
5.9 m/km
Descent
247 m
Net elevation
-0 m
Max absolute grade
9.3%

As of

54
Trondheim Maraton Marathonnorway
Flat grade share
79.0%
Ascent
253 m
Climb density
6.0 m/km
Descent
252 m
Net elevation
1 m
Max absolute grade
10.7%

As of

56
Windermere Marathon (Spokane)washington
Flat grade share
78.6%
Ascent
226 m
Climb density
5.4 m/km
Descent
304 m
Net elevation
-78 m
Max absolute grade
13.4%

As of

58
Southampton Marathonsouth-east
Flat grade share
78.4%
Ascent
279 m
Climb density
6.6 m/km
Descent
265 m
Net elevation
14 m
Max absolute grade
9.7%

As of

59
Rimi Riga Marathonlatvia
Flat grade share
77.6%
Ascent
273 m
Climb density
6.5 m/km
Descent
272 m
Net elevation
1 m
Max absolute grade
20.5%

As of

62
Marshall University Marathonwest-virginia
Flat grade share
75.8%
Ascent
330 m
Climb density
7.8 m/km
Descent
332 m
Net elevation
-2 m
Max absolute grade
18.7%

As of

63
The Original Las Vegas Marathonnevada
Flat grade share
75.4%
Ascent
331 m
Climb density
7.8 m/km
Descent
331 m
Net elevation
0 m
Max absolute grade
11.9%

As of

64
Montana Marathon (Billings)montana
Flat grade share
74.5%
Ascent
193 m
Climb density
4.6 m/km
Descent
446 m
Net elevation
-253 m
Max absolute grade
15.6%

As of

66
Athens Marathon. The Authenticgreece
Flat grade share
73.8%
Ascent
333 m
Climb density
7.9 m/km
Descent
274 m
Net elevation
59 m
Max absolute grade
7.6%

As of

67
FirstEnergy Akron Marathonohio
Flat grade share
73.4%
Ascent
350 m
Climb density
8.3 m/km
Descent
355 m
Net elevation
-6 m
Max absolute grade
13.8%

As of

68
Sioux Falls Marathonsouth-dakota
Flat grade share
73.2%
Ascent
305 m
Climb density
7.2 m/km
Descent
307 m
Net elevation
-2 m
Max absolute grade
13.6%

As of

69
DNB Oslo Marathonnorway
Flat grade share
72.0%
Ascent
307 m
Climb density
7.3 m/km
Descent
308 m
Net elevation
-0 m
Max absolute grade
6.7%

As of

72
Milton Keynes Marathonsouth-east
Flat grade share
70.5%
Ascent
318 m
Climb density
7.5 m/km
Descent
320 m
Net elevation
-2 m
Max absolute grade
7.8%

As of

75
Flying Pig Marathonohio
Flat grade share
68.6%
Ascent
424 m
Climb density
10.0 m/km
Descent
427 m
Net elevation
-4 m
Max absolute grade
32.4%

As of

76
The Asheville Marathon & Halfnorth-carolina
Flat grade share
67.6%
Ascent
312 m
Climb density
7.4 m/km
Descent
374 m
Net elevation
-61 m
Max absolute grade
8.9%

As of

77
Maine Marathon (Portland)maine
Flat grade share
67.3%
Ascent
357 m
Climb density
8.5 m/km
Descent
358 m
Net elevation
0 m
Max absolute grade
15.5%

As of

78
Maui Oceanfront Marathonhawaii
Flat grade share
66.9%
Ascent
392 m
Climb density
9.3 m/km
Descent
413 m
Net elevation
-21 m
Max absolute grade
17.4%

As of

79
Arctic Marathon (Rovaniemi)finland
Flat grade share
65.3%
Ascent
392 m
Climb density
9.3 m/km
Descent
391 m
Net elevation
-0 m
Max absolute grade
11.9%

As of

80
Mississippi Blues Marathonmississippi
Flat grade share
65.3%
Ascent
401 m
Climb density
9.5 m/km
Descent
399 m
Net elevation
2 m
Max absolute grade
10.2%

As of

81
Bend Marathon and Halforegon
Flat grade share
65.1%
Ascent
388 m
Climb density
9.2 m/km
Descent
388 m
Net elevation
0 m
Max absolute grade
16.6%

As of

82
Cedar Rapids Marathoniowa
Flat grade share
63.8%
Ascent
454 m
Climb density
10.8 m/km
Descent
455 m
Net elevation
-1 m
Max absolute grade
15.8%

As of

83
Richmond Park Marathon (London)london
Flat grade share
63.0%
Ascent
423 m
Climb density
10.0 m/km
Descent
417 m
Net elevation
6 m
Max absolute grade
15.3%

As of

85
6 sjöar (Uppsala) Marathonsweden
Flat grade share
61.2%
Ascent
426 m
Climb density
10.1 m/km
Descent
427 m
Net elevation
-1 m
Max absolute grade
22.4%

As of

86
Reims Champagne Run Marathonfrance
Flat grade share
60.8%
Ascent
389 m
Climb density
9.3 m/km
Descent
551 m
Net elevation
-161 m
Max absolute grade
17.4%

As of

89
Clonakilty Waterfront Marathonireland
Flat grade share
57.3%
Ascent
493 m
Climb density
11.7 m/km
Descent
497 m
Net elevation
-4 m
Max absolute grade
13.0%

As of

93
Run Woodstock Marathonmichigan
Flat grade share
53.7%
Ascent
547 m
Climb density
13.0 m/km
Descent
546 m
Net elevation
1 m
Max absolute grade
13.5%

As of

94
Portland Coastal Marathonsouth-west
Flat grade share
53.2%
Ascent
715 m
Climb density
16.9 m/km
Descent
715 m
Net elevation
-0 m
Max absolute grade
33.0%

As of

97
Jungfrau-Marathon Interlakenswitzerland
Flat grade share
47.7%
Ascent
1,960 m
Climb density
46.5 m/km
Descent
200 m
Net elevation
1,761 m
Max absolute grade
35.4%

As of

98
Lake Tahoe Marathonnevada
Flat grade share
46.8%
Ascent
737 m
Climb density
17.5 m/km
Descent
733 m
Net elevation
4 m
Max absolute grade
46.1%

As of

100
Stavanger Marathonnorway
Flat grade share
45.1%
Ascent
862 m
Climb density
20.4 m/km
Descent
887 m
Net elevation
-25 m
Max absolute grade
87.3%

As of

Showing the top 100 of 138 qualifying races; use the distance catalogue for the full searchable list. Scores are out of 100 when present; route, elevation and cost figures are shown in their natural units.

How we ranked these

Races are ranked by Flat grade share. Score metrics use methodology scoring-methodology-v1.0. Elevation rankings use only trusted raw-elevation course profiles. A ranking is only published when at least five races qualify, so the table is never padded with thin data.

See exactly how each figure is calculated →

Route maps for this ranking

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (140)

Read the full methodology →

Common questions

What is the flattest marathons?

Naturosa Catania Marathon ranks first by flat grade share, from 138 qualifying races compared under our published methodology.