COURSE PREVIEW · GRAVEL · STEAMBOAT SPRINGS, COLORADO

SBT GRVL Red course preview

The 2027 SBT GRVL Red course is 53.0 mi (85.4 km) and finishes where it starts, with 3,849 ft of climbing. RideMorrow finds 15 distinct climbs and 10 descents; the listed climbs account for 69% of the total ascent, and the rest comes from shorter rollers. The hardest climb by FIETS score starts at 39.1 mi: 2.00 mi at an average 4.3%, peaking at 9.0% over 100 m. The longest is 3.44 mi, starting at 7.3 mi. The second quarter holds the most climbing (33%).

Get your free ride briefing Official course

CourseClimbsStart

Distance: 53.0 mi85.4 km
Elevation gain: 3,849 ft1,173 m
Climbs: 1510 descents
Steepest 100 m: 10.4%On a listed climb
Corners: 11719 technical
High point: 7,450 ftLow 6,584 ft

Elevation profile

Shaded: every listed climb. Numbered: the hardest.

First quarter972 ft0 mi–13 mi

Second quarter1,267 ft13 mi–27 mi

Third quarter928 ft27 mi–40 mi

Final quarter679 ft40 mi–53 mi

The 5 hardest climbs

Ranked by FIETS score

1
Climb 15 · from 39.1 mi2.00 mi · 453 ft up · 4.3% average, 9.0% steepest
0.6
2
Climb 13 · from 36.5 mi0.86 mi · 280 ft up · 6.2% average, 10.4% steepest
0.5
3
Climb 11 · from 26.4 mi0.65 mi · 216 ft up · 6.3% average, 8.3% steepest
0.4
4
Climb 2 · from 7.3 mi3.44 mi · 433 ft up · 2.4% average, 5.6% steepest
0.3
5
Climb 10 · from 23.7 mi0.72 mi · 191 ft up · 5.0% average, 9.2% steepest
0.3

Every climb, in ride order

15 climbs · top 5 highlighted

Climb	Starts at	Length	Elevation gain	Avg grade	Steepest 100 m	FIETS
1	1.2 mi	0.57 mi	88 ft	2.9%	9.6%	0.1
2	7.3 mi	3.44 mi	433 ft	2.4%	5.6%	0.3
3	10.9 mi	1.01 mi	181 ft	3.4%	5.3%	0.2
4	14.8 mi	0.71 mi	140 ft	3.7%	6.7%	0.2
5	16.7 mi	0.40 mi	117 ft	5.5%	10.3%	0.2
6	17.8 mi	0.61 mi	75 ft	2.3%	4.7%	0.1
7	18.9 mi	1.16 mi	178 ft	2.9%	8.1%	0.2
8	20.6 mi	0.52 mi	75 ft	2.7%	5.1%	0.1
9	21.6 mi	0.48 mi	97 ft	3.8%	9.2%	0.1
10	23.7 mi	0.72 mi	191 ft	5.0%	9.2%	0.3
11	26.4 mi	0.65 mi	216 ft	6.3%	8.3%	0.4
12	35.9 mi	0.43 mi	72 ft	3.1%	8.9%	0.1
13	36.5 mi	0.86 mi	280 ft	6.2%	10.4%	0.5
14	37.7 mi	0.66 mi	71 ft	2.0%	5.6%	0.0
15	39.1 mi	2.00 mi	453 ft	4.3%	9.0%	0.6

Descents

10 descents drop 2,746 ft in total. The steepest:

Descent 2 · from 15.6 mi 1.11 mi at 6.9% average, 10.7% at its steepest
Descent 3 · from 24.5 mi 1.52 mi at 6.4% average, 9.7% at its steepest
Descent 1 · from 11.9 mi 2.52 mi at 3.5% average, 9.4% at its steepest
Descent 10 · from 51.3 mi 0.57 mi at 2.9% average, 9.4% at its steepest
Descent 4 · from 27.1 mi 1.17 mi at 5.6% average, 8.5% at its steepest

Corners

117 corners detected from the course geometry, 22 of them on a descent.

1 Very technical
18 Technical
40 Moderate
58 Gentle

Technical corners on descents

12.7 mi 35° left bend on a 9.1% approach · Technical
15.8 mi 46° right bend on a 8.0% approach · Technical
15.9 mi 39° left bend on a 7.3% approach · Technical
16.2 mi 32° right bend on a 9.3% approach · Technical
16.3 mi 32° left bend on a 9.8% approach · Technical
21.7 mi 34° left bend on a 3.1% approach · Technical

Corners describe the line on the map, not road conditions. Sightlines, grip and traffic aren't known.

SBT GRVL Red course FAQ

How much climbing is in the SBT GRVL Red?

3,849 ft (1,173 m) over 53.0 mi, measured from the organizer's course file with the elevation smoothed and small fluctuations ignored. Other tools may show a different total because they count every small rise.

How many climbs does the SBT GRVL Red have?

15 climbs of at least 300 m with 20 m of elevation change and a 2% average grade, plus shorter rollers. Together the listed climbs gain 2,667 ft.

What is the hardest climb in the SBT GRVL Red?

Climb 15, starting at 39.1 mi: 2.00 mi gaining 453 ft at an average 4.3%. Its FIETS score is 0.6.

What is the longest climb in the SBT GRVL Red?

Climb 2, 3.44 mi from 7.3 mi, averaging 2.4%.

How steep does the SBT GRVL Red get?

The steepest 100 m on a listed climb averages 10.4%. Grades are measured over 100 m, so short ramps can be steeper.

Where does this course data come from?

From the course SBT GRVL publishes on its official site (https://sbtgrvl.com/the-race), retrieved 2026-10-12. Organizers change courses, so check their site before the event.

Source and method

Course: Red Course | SBT GRVL® p/b Wahoo 2027, published by SBT GRVL. Retrieved 2026-10-12. RideMorrow is not affiliated with the event. Organizers change courses, so check the official site before the event.

Elevation comes from the route file, resampled every 10 m and smoothed. Climbs and descents need at least 300 m of length, 20 m of elevation change and a 2% average grade. Grades are measured over 100 m. Climbs are ranked by FIETS score: height² ÷ (length × 10), both in metres, without the index's high-altitude bonus. A score of 1 is a solid climb; 5 and above is a mountain pass. Weather, surface conditions, traffic and closures are not included.

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