Sea Gull Century course preview
The 2026 Sea Gull Century course is 104.0 mi (167.4 km) and finishes where it starts, with 300 ft of climbing. The second quarter holds the most climbing (34%).
- Distance
- 104.0 mi167.4 km
- Elevation gain
- 300 ft91 m
- Climbs
- 00 descents
- Steepest 100 m
- —On a listed climb
- Corners
- 12924 technical
- High point
- 56 ftLow 2 ft
Elevation profile
Shaded: every listed climb. Numbered: the hardest.The 5 hardest climbs
Ranked by FIETS scoreNo climbs to rank.
Every climb, in ride order
0 climbs · top 5 highlightedNo section of this course meets the climb threshold (300 m long, 20 m of elevation change and a 2% average grade).
Descents
No descent on this course meets the threshold.
Corners
129 corners detected from the course geometry, 0 of them on a descent.
- 3 Very technical
- 21 Technical
- 52 Moderate
- 53 Gentle
Corners describe the line on the map, not road conditions. Sightlines, grip and traffic aren't known.
Sea Gull Century course FAQ
How much climbing is in the Sea Gull Century?
300 ft (91 m) over 104.0 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 Sea Gull Century have?
0 climbs of at least 300 m with 20 m of elevation change and a 2% average grade, plus shorter rollers.
Where does this course data come from?
From the course Sea Gull Century publishes on its official site (https://seagullcentury.org/ridewithgps-files/), retrieved 2026-10-12. Organizers change courses, so check their site before the event.
Source and method
Course: Sea Gull Century 2026, published by Sea Gull Century. 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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