L ultra-trails 2027: 115 to 154 km-effort

87 races in 2027 are 115 to 154 km-effort. Each with its date, country, elevation gain/km, cut-off time and minimum speed required.

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Widest cut-off times in L

The widest cut-off requires a minimum speed of 2.7 km/h: Montreux Trail Festival - MXALPS.

Montreux Trail Festival - MXALPS : 2.7 km/h (66 km in 24 h)
Cool Moon 100k : 2.8 km/h (102 km in 37 h)
Trail Verbier St Bernard - X-Traversee : 3.0 km/h (77 km in 26 h)
SWISS CANYON TRAIL - 81 KM : 3.1 km/h (84 km in 27 h)
Ozark Foothills 100k : 3.1 km/h (101 km in 32 h)

Most rolling races in L

The most rolling climbs only 13 m per km: Salomon EcoTrail Paris - Printemps - Trail 120km.

Salomon EcoTrail Paris - Printemps - Trail 120km : 13 m/km (1,618 m elevation gain over 120 km)
PROVITAL BACKYARD ULTRA - GRAN CANARIA - 20 Loops : 15 m/km (2,028 m elevation gain over 134 km)
Ultra Tour des Côtes d'Armor - 100 Km : 15 m/km (1,529 m elevation gain over 101 km)
PROVITAL BACKYARD ULTRA - GRAN CANARIA - 15 Loops : 15 m/km (1,550 m elevation gain over 101 km)
Desert RATS Trail Running Festival - 100K : 18 m/km (1,871 m elevation gain over 102 km)

Steepest races in L

The steepest climbs 88 m per km: Picos de Europa Travesera Integral - Travesera Integral Picos de Europa.

Picos de Europa Travesera Integral - Travesera Integral Picos de Europa : 88 m/km (6,927 m elevation gain over 79 km)
Scenic Trail - K83 Endurance : 81 m/km (6,755 m elevation gain over 84 km)
Montreux Trail Festival - MXALPS : 80 m/km (5,291 m elevation gain over 66 km)
Monte Rosa Walserwaeg - Monte Rosa Trail : 74 m/km (6,087 m elevation gain over 82 km)
Kaçkar - KAÇKAR 100K : 70 m/km (5,814 m elevation gain over 83 km)

Your estimated time on each race

Calculated at your UTMB Index, by the same formula as your RAVIT plan.

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The 87 L 2027 races (115 to 154 km-effort).
No.	Race	Date	Country	Cat.	Effort-km	Elev. gain/km (m/km)	Time limit	Minimum speed (km/h)	Aid stations
1	Bandera 100k	01/09	US	L	119	19	25 h	4.0	11
2	Sean O'Brien 100K	01/20	US	L	138	40	17 h	5.8	10
3	Hong Kong 100	01/23	HK	L	147	54	30 h	3.2	unknown
4	ULTRAMEDITERRANIA TERRES DE TRAIL. Unión Alcoyana Seguros - ONE 86K	01/23	ES	L	127	47	21 h	4.1	unknown
5	Winter Trail Monte Prealba - Hard	01/31	IT	L	120	68	17 h	4.2	unknown
6	UTDF - Ultra Trail Des Fontaines	02/06	FR	L	147	41	24 h	4.4	unknown
7	Tarawera Ultra-Trail - T102	02/13	NZ	L	130	28	30 h	3.4	9
8	Transgrancanaria - Advanced	02/27	ES	L	124	53	21 h	3.9	6
9	Ultra Tour des Côtes d'Armor - 100 Km	02/28	FR	L	116	15	14 h 30	7.0	unknown
10	Puerto Vallarta - Hikuri 81K	03/05	MX	L	117	46	20 h 30	3.9	9
11	100 MILLAS SIERRAS DEL BANDOLERO by Trangoworld - CMSB - Bandolerita	03/06	ES	L	115	42	21 h	3.9	unknown
12	Xtrail - Xtrail 100K	03/06	TW	L	130	33	24 h	4.1	10
13	MUC 50M	03/13	US	L	116	48	14 h	5.6	9
14	Salomon EcoTrail Paris - Printemps - Trail 120km	03/20	FR	L	136	13	21 h 15	5.7	9
15	Trail du Cirque du Fer à Cheval - 85 km	03/20	FR	L	120	42	15 h	5.7	10
16	Istria 100 - 110K	04/03	HR	L	150	35	28 h	4.0	8
17	Jujuy Fuerza Sagrada by UTMB - INTI 88K	04/03	AR	L	141	60	23 h 30	3.8	9
18	Desert RATS Trail Running Festival - 100K	04/10	US	L	121	18	20 h	5.1	11
19	Gorge waterfalls 100k	04/10	US	L	128	30	unknown	unknown	8
20	Hiroshima Ultra-Trail by UTMB® - HIROSHIMA 100K	04/10	JP	L	153	57	29 h	3.4	9
21	Lake Sonoma 100k	04/10	US	L	131	33	19 h	5.2	14
22	Leona Divide 100k	04/10	US	L	129	29	17 h	5.9	9
23	Ozark Foothills 100k	04/10	US	L	126	26	32 h	3.1	9
24	Tenerife Bluetrail - TENERIFE BLUETRAIL 82k	04/10	ES	L	116	42	18 h	4.6	9
25	Trail du lac de Paladru - Ultra du Pays Voironnais - UYN 85km	04/17	FR	L	119	40	17 h	5.0	unknown
26	TUSCANY CROSSING - 100 km	04/17	IT	L	140	36	23 h	4.5	unknown
27	Ultratril Fränkische Schweiz (UTFS) - Ultratrail (100km)	04/23	unknown	L	131	31	unknown	unknown	8
28	Falling Water 100k	04/24	US	L	129	33	unknown	unknown	8
29	Grand Raid Ventoux - GEV - Grande Epopée Ventoux	04/24	FR	L	130	49	19 h 40	4.4	6
30	The Canyons Endurance Runs - 100K	04/24	US	L	136	38	20 h	5.0	9
31	Amazean Jungle Thailand - TUNNEL 100K	05/01	TH	L	139	53	24 h	3.8	8
32	Miwok 100k	05/01	US	L	132	33	15 h 30	6.5	9
33	Oh Meu Deus - Oh Meu Deus 100K	05/01	PT	L	146	56	26 h	3.6	8
34	Volvic Volcanic Experience - Ultra Trail Experience - Chaine des Puys - Faille de Limagne	05/07	FR	L	135	28	20 h 30	5.2	8
35	Morenic Trail - 119k	05/08	IT	L	146	24	24 h	4.9	unknown
36	Morenic Trail - Team	05/08	IT	L	150	27	24 h	4.9	unknown
37	Quicksilver 100k	05/08	US	L	138	39	17 h	5.9	12
38	Ultra-Trail des Coursières - Le 100 km des Coursières	05/08	FR	L	146	39	19 h 30	5.4	unknown
39	Trail Alsace - Ultra-Trail des Païens	05/14	FR	L	151	39	24 h	4.5	8
40	GRAN RAID DELLE PREALPI TREVIGIANE - GRA RAID GR80	05/15	IT	L	133	62	18 h	4.6	unknown
41	PROVITAL BACKYARD ULTRA - GRAN CANARIA - 15 Loops	05/15	ES	L	116	15	15 h	6.7	unknown
42	PROVITAL BACKYARD ULTRA - GRAN CANARIA - 20 Loops	05/15	ES	L	154	15	20 h	6.7	unknown
43	Ultra-Trail Australia - UTA100	05/15	AU	L	145	43	28 h	3.6	9
44	Mountain Ultra Trail - MUT 100 by UTMB	05/29	ZA	L	147	47	25 h	4.0	6
45	mozart 100 - mozart Ultra	06/05	AT	L	139	65	19 h	4.4	8
46	mozart 100 - mozart Ultra Relay	06/05	AT	L	139	65	19 h	4.4	8
47	SWISS CANYON TRAIL - 81 KM	06/05	CH	L	116	40	27 h	3.1	8
48	Transju'Trail - 82 Relais	06/05	FR	L	118	44	17 h	4.8	7
49	Transju'Trail - L'Ultra 110km	06/05	FR	L	152	40	22 h	4.9	8
50	Transju'Trail - Le Trail 82km	06/05	FR	L	118	44	17 h	4.8	7
51	Worlds End Ultra 100k	06/05	US	L	135	32	19 h	5.4	14
52	Scenic Trail - K83 Endurance	06/11	CH	L	151	81	25 h	3.3	unknown
53	Cool Moon 100k	06/12	US	L	128	26	37 h	2.8	24
54	Laurel Highlands Ultra 70.5	06/12	US	L	140	30	22 h	4.9	9
55	Picos de Europa Travesera Integral - Travesera Integral Picos de Europa	06/12	ES	L	147	88	22 h	3.6	unknown
56	Trail of the Kings - Lake Toba - Caldera Crown 100K	06/12	ID	L	145	42	30 h	3.4	11
57	LA BARJO - La Mora	06/18	FR	L	143	19	22 h	5.5	unknown
58	Zugspitz Ultra Trail - Ehrwald Trail	06/18	unknown	L	130	51	22 h	3.9	9
59	Kagaspa Trail Endurance 100 - KAGASPA 100K	06/19	JP	L	147	51	27 h	3.6	11
60	Trail du Saint Jacques - 100K - Grand Trail du Saint Jacques	06/19	FR	L	122	41	18 h	4.8	8
61	Torrencial Chile - PILOLCURA 100K	06/24	CL	L	141	40	22 h	4.6	10
62	La Sportiva Lavaredo Ultra Trail - Lavaredo 80K	06/26	IT	L	127	57	22 h	3.7	7
63	LE GRAND TRAIL DE L'OUEST - GTO 85	07/02	FR	L	125	48	23 h	3.7	unknown
64	Val D'Aran - TDL - Termières dera Libertat	07/07	ES	L	126	69	20 h	3.7	7
65	Ironstone 100K	07/10	US	L	124	22	23 h	4.4	10
66	Jurapics - L'Olympic	07/10	FR	L	136	61	18 h 45	4.5	7
67	Jurapics - L'Utopic	07/10	FR	L	136	61	18 h 45	4.5	7
68	Siskiyou Out Back 100k	07/10	US	L	132	33	18 h	5.6	10
69	Trail Verbier St Bernard - X-Traversee	07/10	CH	L	129	68	26 h	3.0	8
70	Monte Rosa Walserwaeg - Monte Rosa Trail	07/16	IT	L	142	74	25 h	3.3	12
71	Swissalpine - K78	07/16	CH	L	126	59	22 h	3.6	unknown
72	The Guzzler Ultra 100	07/17	AU	L	145	38	28 h	3.8	10
73	Bucovina Ultra Rocks by UTMB - FOUR SUMMITS	07/24	RO	L	119	64	20 h	3.6	10
74	Montreux Trail Festival - MXALPS	07/24	CH	L	118	80	24 h	2.7	6
75	Quito Trail Ecuador by UTMB® - 80K Oso	07/31	unknown	L	122	61	20 h	3.8	10
76	Waldo 100k	07/31	US	L	132	32	18 h	5.6	10
77	Fjällmaraton 100k	08/05	SE	L	132	32	unknown	unknown	7
78	KAT100 by UTMB - Endurance Trail	08/06	AT	L	116	56	18 h	4.2	7
79	Malaysia Ultra-Trail - MALAYSIA100	09/04	unknown	L	154	56	30 h	3.3	11
80	Wildstrubel - Wild 70 Kandersteg	09/10	CH	L	116	62	17 h 30	4.1	7
81	Kaçkar - KAÇKAR 100K	09/11	TR	L	140	70	24 h	3.4	9
82	Julian Alps Trail Run - LAKE BLED 80K	09/18	SI	L	121	54	21 h	3.8	7
83	Skyline Scotland by UTMB® - Grand Tour of The Ben 100K	09/18	GB	L	118	31	18 h	5.0	unknown
84	Paraty Brazil - PTR 100	09/24	BR	L	149	47	30 h	3.4	10
85	Grindstone Trail Running Festival - 100K	09/25	US	L	137	30	18 h	5.9	10
86	Cuyamaca 100k	10/02	US	L	126	25	19 h	5.3	9
87	Black Forest Ultra 100k (Odd Year)	10/03	US	L	138	36	19 h	5.4	5

Effort-km = km + elev. gain/100 · categories XXS to XXL by effort-km · minimum speed = distance ÷ time limit.

Distances as the crow flies from the start, rounded to the nearest ten. Cities: GeoNames (CC BY 4.0).

Ranking glossary

Effort-km: Distance in km plus elevation gain divided by 100: 50 km and 2,500 m of gain equals 75 effort-km. Categories: XXS under 25, XS 25 to 44, S 45 to 74, M 75 to 114, L 115 to 154, XL 155 to 209, XXL 210 and above.
Gain/km: Elevation gain divided by distance, in meters per kilometer: the lower it is, the more runnable the race.
Time limit: The maximum time allowed by the organizer to reach the finish, the final cut-off time.
Minimum speed: Distance divided by time limit, in km/h: the average pace to maintain to finish within the deadline. The lower it is, the wider the cut-off.

FAQ

How many L races in 2027?

87 2027 races from the RAVIT catalog are 115 to 154 km-effort, out of 740 ranked 2027 races.

Which L 2027 race has the widest cut-off time?

Montreux Trail Festival - MXALPS: 66 km in 24 h, i.e. a minimum speed of 2.7 km/h.

What pace do you need to maintain on a L race?

The median minimum speed is 4.4 km/h, across 83 races with a published time limit.

How much elevation gain per km on a L race?

41 m/km median, from 13 m/km (Salomon EcoTrail Paris - Printemps - Trail 120km) to 88 m/km (Picos de Europa Travesera Integral - Travesera Integral Picos de Europa).

How many L races publish a time limit?

83 out of 87. The others show « unknown » and fall to the end of the minimum speed ranking.

Why rank by effort-km rather than distance?

Because 100 m of elevation gain costs roughly the effort of one flat kilometer: 50 km and 2,500 m gain make 75 effort-km, like 75 flat km.

Method and sources

Data updated October 31, 2026, covering 87 2027 races in the RAVIT catalog.

Distance, gain, date, country and time limit: sourced from each race organizer's website, and utmb.world for UTMB World Series events; each entry cites its source.
Categories XXS to XXL: calculated by RAVIT using effort-km (km + gain/100), at the thresholds shown above.
Minimum speed: distance divided by time limit. A race with no published time limit displays « unknown » and sorts to the end.
Aid stations: the number of documented aid stations on the race's RAVIT entry; « unknown » when none are yet documented.