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The course, in 3D

Chevron Houston Marathon

Houston, TX · Sunday, January 17, 2027

Chevron Houston Marathon official site →registration and course details
Race day
Sunday, January 17, 2027
Climb
360 fttotal ascent
Race-week weather
45°F to 61°Ften-year normals, 37% of days wet

Fly the course

All 26.2 miles through a model of Houston built from OpenStreetMap: real building footprints, heights and roof shapes, the water, and the course line itself. Scrub it, switch cameras, or let it play.

Route statusa community trace of the current course; the official certified course is on the race's site. 2026 race GPX; start/finish match the official start-line map PDFs

Course line a community trace of the current course; the official certified course is on the race's site. 2026 race GPX; start/finish match the official start-line map PDFs Buildings, roads, parks and shorelines are OpenStreetMap, ODbL, so building coverage varies block to block. Public-domain USGS/USDA aerial imagery and USGS 3DEP terrain are served as static site assets; no paid map API runs in the browser. This is photographic terrain with modeled architecture, not photogrammetry. Bridge approaches, elevations and facade details remain approximate. The organizer's published route is the reference.

Accuracy check: drawn line is within 0.7% of the certified 26.2 miles; no part of the line passes through a building; 100% of it sits on a mapped road; closest it ever comes to a building wall is 7.5 m.

Note on bridge grades: Where a course crosses a bridge, the elevation now follows the deck rather than the ground underneath it. A terrain model contains no bridges, so it used to sample the riverbed and report a gorge the runner never descends. Decks are held level between their abutments and never allowed to sag below them; a genuine climb across a long span, like the Golden Gate approach, is left exactly as measured. The camber of a long suspension deck is not modelled, so a bridge that really does rise toward mid-span may read slightly flatter here than it feels.

The elevation profile

-20 0 20 40 60 80 100 120 Mile 0.0 to 0.2: +0.4% Mile 0.2 to 0.4: -0.6% Mile 0.4 to 0.6: +1.4% Mile 0.6 to 0.8: +0.2% Mile 0.8 to 1.0: +0.3% Mile 1.0 to 1.2: +0.1% Mile 1.2 to 1.4: +0.1% Mile 1.4 to 1.6: -0.3% Mile 1.6 to 1.8: +0.1% Mile 1.8 to 2.0: +0.2% Mile 2.0 to 2.2: +0.0% Mile 2.2 to 2.4: +0.0% Mile 2.4 to 2.6: -0.1% Mile 2.6 to 2.8: -1.5% Mile 2.8 to 3.0: -0.1% Mile 3.0 to 3.2: +0.8% Mile 3.2 to 3.4: +0.4% Mile 3.4 to 3.6: -0.1% Mile 3.6 to 3.8: +0.0% Mile 3.8 to 4.0: -0.1% Mile 4.0 to 4.2: +0.0% Mile 4.2 to 4.4: +0.0% Mile 4.4 to 4.6: +0.1% Mile 4.6 to 4.8: +0.1% Mile 4.8 to 5.0: -0.1% Mile 5.0 to 5.2: -0.1% Mile 5.2 to 5.4: -0.0% Mile 5.4 to 5.6: -0.0% Mile 5.6 to 5.8: -0.0% Mile 5.8 to 6.0: -0.1% Mile 6.0 to 6.2: -0.1% Mile 6.2 to 6.4: +0.1% Mile 6.4 to 6.6: +0.1% Mile 6.6 to 6.8: -0.1% Mile 6.8 to 7.0: -0.2% Mile 7.0 to 7.2: +0.1% Mile 7.2 to 7.4: -0.0% Mile 7.4 to 7.6: -0.0% Mile 7.6 to 7.8: -0.1% Mile 7.8 to 8.0: -0.1% Mile 8.0 to 8.2: -0.1% Mile 8.2 to 8.4: -0.1% Mile 8.4 to 8.6: +0.0% Mile 8.6 to 8.8: -0.0% Mile 8.8 to 9.0: +0.1% Mile 9.0 to 9.2: +0.0% Mile 9.2 to 9.4: +0.1% Mile 9.4 to 9.6: +0.0% Mile 9.6 to 9.8: +0.1% Mile 9.8 to 10.0: +0.1% Mile 10.0 to 10.2: -0.0% Mile 10.2 to 10.4: +0.1% Mile 10.4 to 10.6: +0.0% Mile 10.6 to 10.8: +0.1% Mile 10.8 to 11.0: -0.0% Mile 11.0 to 11.2: -0.0% Mile 11.2 to 11.4: +0.0% Mile 11.4 to 11.6: +0.0% Mile 11.6 to 11.8: +0.1% Mile 11.8 to 12.0: +0.1% Mile 12.0 to 12.2: +0.1% Mile 12.2 to 12.4: +0.1% Mile 12.4 to 12.6: +0.1% Mile 12.6 to 12.8: +0.3% Mile 12.8 to 13.0: -0.0% Mile 13.0 to 13.2: -0.1% Mile 13.2 to 13.4: +0.3% Mile 13.4 to 13.6: -0.0% Mile 13.6 to 13.8: +0.1% Mile 13.8 to 14.0: +0.1% Mile 14.0 to 14.2: -0.2% Mile 14.2 to 14.4: +0.0% Mile 14.4 to 14.6: +0.0% Mile 14.6 to 14.8: -0.1% Mile 14.8 to 15.0: +0.0% Mile 15.0 to 15.2: +0.0% Mile 15.2 to 15.4: +0.0% Mile 15.4 to 15.6: -0.1% Mile 15.6 to 15.8: +0.1% Mile 15.8 to 16.0: +0.1% Mile 16.0 to 16.2: +0.0% Mile 16.2 to 16.4: -0.0% Mile 16.4 to 16.6: +0.1% Mile 16.6 to 16.8: +0.0% Mile 16.8 to 17.0: +0.0% Mile 17.0 to 17.2: -0.8% Mile 17.2 to 17.4: -0.5% Mile 17.4 to 17.6: +1.1% Mile 17.6 to 17.8: +0.3% Mile 17.8 to 18.0: +0.3% Mile 18.0 to 18.2: +0.4% Mile 18.2 to 18.4: +0.0% Mile 18.4 to 18.6: -0.1% Mile 18.6 to 18.8: +0.0% Mile 18.8 to 19.0: -0.1% Mile 19.0 to 19.2: -0.0% Mile 19.2 to 19.4: +0.0% Mile 19.4 to 19.6: -0.2% Mile 19.6 to 19.8: -0.0% Mile 19.8 to 20.0: -0.2% Mile 20.0 to 20.2: +0.0% Mile 20.2 to 20.4: +0.1% Mile 20.4 to 20.6: -0.0% Mile 20.6 to 20.8: +1.4% Mile 20.8 to 21.0: -1.1% Mile 21.0 to 21.2: -0.8% Mile 21.2 to 21.4: +0.6% Mile 21.4 to 21.6: -0.0% Mile 21.6 to 21.8: -0.4% Mile 21.8 to 22.0: -0.4% Mile 22.0 to 22.2: -0.1% Mile 22.2 to 22.4: -0.2% Mile 22.4 to 22.6: -1.0% Mile 22.6 to 22.8: -0.3% Mile 22.8 to 23.0: +1.0% Mile 23.0 to 23.2: -0.3% Mile 23.2 to 23.4: +1.8% Mile 23.4 to 23.6: -1.0% Mile 23.6 to 23.8: -0.1% Mile 23.8 to 24.0: -0.5% Mile 24.0 to 24.2: -0.2% Mile 24.2 to 24.4: +0.3% Mile 24.4 to 24.6: +0.8% Mile 24.6 to 24.8: +0.0% Mile 24.8 to 25.0: -0.5% Mile 25.0 to 25.2: +0.1% Mile 25.2 to 25.4: +0.9% Mile 25.4 to 25.6: -0.1% Mile 25.6 to 25.8: -0.1% Mile 25.8 to 26.0: -0.0% Mile 26.0 to 26.2: -0.1% 5 10 15 20 25 mile
steep up up flat down steep down

360 feet of total climb across the 26.2, between 26 and 62 feet of elevation. Click the profile to jump the flythrough to that mile.

Mile by mile

Every mile of the course on the same vertical scale, so they compare at a glance. Net is what the mile does to your elevation; steepest fifth is the sharpest continuous fifth of a mile inside it, the same unit the colour strip above uses.

MileShapeNetElevation Steepest fifthStreets
1+6 ft46 ft-0.9%Congress Street, Franklin Street, Washington Avenue
2+4 ft51 ft-0.3%Washington Avenue
3-9 ft43 ft-1.9%Washington Avenue, South Heights Boulevard, Waugh Drive
4+8 ft51 ft+0.5%Waugh Drive, West Gray Street
5+3 ft55 ft+0.1%Inwood Drive, West Gray Street, Kirby Drive
6-2 ft52 ft-0.1%Kirby Drive
7-5 ft47 ft-0.2%Kirby Drive, Bissonnet Street
8-1 ft47 ft+0.1%Bissonnet Street, Mandell Street, Sunset Boulevard
9-2 ft45 ft-0.1%Main Street, Sunset Boulevard
10+3 ft47 ft+0.1%University Boulevard, Main Street
11+2 ft49 ft+0.1%University Boulevard
12+3 ft52 ft+0.1%University Boulevard, Weslayan Street
13+6 ft58 ft+0.3%Westpark Drive, Weslayan Street
14+2 ft59 ft+0.3%Southwest Freeway Frontage Road, Newcastle Drive, Richmond Avenue
15-1 ft59 ft-0.3%Post Oak Boulevard
16+1 ft59 ft+0.1%San Felipe Street, Tanglewood Boulevard, Post Oak Boulevard
17+3 ft62 ft+0.2%Tanglewood Boulevard, Chimney Rock Road
18-5 ft57 ft+1.6%Chimney Rock Road, Memorial Drive
19+6 ft63 ft+0.4%Memorial Drive
20-7 ft56 ft-0.3%Memorial Drive
21+0 ft56 ft-2.2%Memorial Drive
22-9 ft47 ft-0.6%Memorial Drive
23-11 ft36 ft-1.1%Memorial Drive, Shepherd Drive
24-9 ft29 ft+1.7%Allen Parkway
25+8 ft36 ft+1.0%Allen Parkway
26+7 ft45 ft+1.0%Lamar Street, Allen Parkway, Dallas Street

The course on a map

1 5 10 13 15 20 25 26

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Chevron Houston Marathon planning

Open the complete race guide: course, hotels, expo, spectators and the city.

Course geometry a community trace of the current course; the official certified course is on the race's site. City geometry is OpenStreetMap, ODbL. Weather normals are ten years of Open-Meteo reanalysis around race day at the start line. Confirm dates and registration on the official site. Spot an error? Tell us and we'll fix it fast.