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Cover photo of C&O Canal 100 2027 — 161 km, 292 m elevation gain

C&O Canal 100 2027

April 24, 2027
Distance
160.9 km
Elevation gain
292 m
Country
🇺🇸 United States
Download the GPXOfficial race website
Course weather at your time of passage

The forecast arrives five days before the start.

Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 21 aid stations to plan your nutrition and hydration segment by segment.

What's your time based on your UTMB?

Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.

Predicted race time based on your UTMB Index®

UTMB Index®
Normal day
3005007009001000UTMB Index®
SourceUTMB® Index

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Cut-off times and crew - C&O Canal 100 · 2027

161 km race checkpoints: kilometers, elevation, crew, cut-off time and access
Aid stationCum. kmCum. D+Seg. kmSeg. D+Seg. D-CrewCut-offAccess
Dargan Bend1.00 m1.0—80 m——
Antietam9.30 m8.3————
North Turnaround14.22 m4.92 m0 m——
Antietam19.22 m5.0————
Dargan Bend27.42 m8.2—2 m——
Keep Tryst Rd.39.82 m12.4—15 m——
Brunswick43.62 m3.8——Allowed—
Keep Tryst Rd.47.52 m3.8————
Manidokan60.396 m12.894 m2 mAllowed—
Dargan Bend61.396 m1.0—80 m——
Antietam69.598 m8.32 m0 m——
Dargan Bend77.898 m8.3—2 m——
Keep Tryst Rd.90.2100 m12.42 m15 m——
Brunswick94.0100 m3.8—2 mAllowed—
Keep Tryst Rd.97.8100 m3.8————
Manidokan110.5188 m12.788 m2 mAllowedSun 03:45 AM
Dargan Bend111.6198 m1.110 m80 m——
Antietam119.9198 m8.3————
Dargan Bend128.1198 m8.2———Sun 06:45 AM
Keep Tryst Rd.140.5198 m12.4—15 m——
Brunswick144.4198 m3.8——AllowedSun 09:45 AM
Keep Tryst Rd.148.2198 m3.8————
Manidokan160.9292 m12.894 m0 mAllowedSun 01:00 PM

Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.

What you'll find at each aid station

Aid station contents: products in rows, aid stations in columns
ProductDargan Bendkm 1.0Antietamkm 9.3Antietamkm 19.2Dargan Bendkm 27.4Keep Tryst Rd.km 39.8Brunswickkm 43.6Keep Tryst Rd.km 47.5Manidokankm 60.3Dargan Bendkm 61.3Antietamkm 69.5Dargan Bendkm 77.8Keep Tryst Rd.km 90.2Brunswickkm 94.0Keep Tryst Rd.km 97.8Manidokankm 110.5Dargan Bendkm 111.6Antietamkm 119.9Dargan Bendkm 128.1Keep Tryst Rd.km 140.5Brunswickkm 144.4Keep Tryst Rd.km 148.2
Wateravailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailable
Brand productsavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailableavailable

La feuille de ton assistance pour C&O Canal 100 · 2027

Ton assistance peut te voir à ces postes. Ton plan RAVIT y met tes heures, ce qu'elle te tend et la route pour y aller.

  • Brunswickkm 43.6
  • Manidokankm 60.3
  • Brunswickkm 94
  • Manidokankm 110.5
  • Brunswickkm 144.4

Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.

Elevation profile

100 MS01 · Dargan Bend KM 1.0 — Alt 89 m D+ cumulé 0 m1.0 KMDargan BendS02 · Antietam KM 9.3 — Alt 91 m D+ cumulé 0 m9.3 KMAntietamS03 · North Turnaround KM 14.2 — Alt 93 m D+ cumulé 2 m14.2 KMNorth TurnaroundS04 · Antietam KM 19.2 — Alt 91 m D+ cumulé 2 m19.2 KMAntietamS05 · Dargan Bend KM 27.4 — Alt 89 m D+ cumulé 2 m27.4 KMDargan BendS06 · Keep Tryst Rd. KM 39.8 — Alt 75 m D+ cumulé 2 m39.8 KMKeep Tryst Rd.S07 · Brunswick KM 43.6 — Alt 74 m D+ cumulé 2 m43.6 KMBrunswickS08 · Keep Tryst Rd. KM 47.5 — Alt 75 m D+ cumulé 2 m47.5 KMKeep Tryst Rd.S09 · Manidokan KM 60.3 — Alt 167 m D+ cumulé 96 m60.3 KMManidokanS10 · Dargan Bend KM 61.3 — Alt 89 m D+ cumulé 96 m61.3 KMDargan BendS11 · Antietam KM 69.5 — Alt 91 m D+ cumulé 98 m69.5 KMAntietamS12 · Dargan Bend KM 77.8 — Alt 89 m D+ cumulé 98 m77.8 KMDargan BendS13 · Keep Tryst Rd. KM 90.2 — Alt 75 m D+ cumulé 100 m90.2 KMKeep Tryst Rd.S14 · Brunswick KM 94.0 — Alt 74 m D+ cumulé 100 m94.0 KMBrunswickS15 · Keep Tryst Rd. KM 97.8 — Alt 75 m D+ cumulé 100 m97.8 KMKeep Tryst Rd.S16 · Manidokan KM 110.5 — Alt 165 m D+ cumulé 188 m110.5 KMManidokanS17 · Dargan Bend KM 111.6 — Alt 89 m D+ cumulé 198 m111.6 KMDargan BendS18 · Antietam KM 119.9 — Alt 91 m D+ cumulé 198 m119.9 KMAntietamS19 · Dargan Bend KM 128.1 — Alt 89 m D+ cumulé 198 m128.1 KMDargan BendS20 · Keep Tryst Rd. KM 140.5 — Alt 75 m D+ cumulé 198 m140.5 KMKeep Tryst Rd.S21 · Brunswick KM 144.4 — Alt 74 m D+ cumulé 198 m144.4 KMBrunswickS22 · Keep Tryst Rd. KM 148.2 — Alt 75 m D+ cumulé 198 m148.2 KMKeep Tryst Rd.Start0 KMFinish160.9 KM

The course and its aid stations

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GPX
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C&O Canal 100: times, aid-station stops and fuelling needs by UTMB® Index

Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 21h45 to 12h46, and the aid-station stop budget from 1h14 to 0h24. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.

SourceUTMB® Index

Below a UTMB® Index of roughly 320, the overall cut-off of 30h00 is no longer reachable at the estimated pace.

0h000h501h392h293h183005007009001000UTMB® Index
Estimated time, stop time and fuelling needs on C&O Canal 100 by UTMB Index
UTMB® IndexEstimated timeOf which stopsNight hoursCarbsFluidSodiumCut-off margin
50021h451h147.81,305 g15.2 L10,877 mg+8h15
55020h001h0061,200 g14 L10,000 mg+10h00
60018h050h494.11,085 g12.7 L9,043 mg+11h55
65016h300h402.5990 g11.6 L8,250 mg+13h30
70015h030h341.1903 g10.5 L7,524 mg+14h57
75013h460h28—826 g9.6 L6,881 mg+16h14
80012h460h24—766 g8.9 L6,385 mg+17h14

Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.

In the 2027 ranking

C&O Canal 100 is 161 km and 292 m of elevation gain, that's 163 km-effort: category XL, among 55 races in 2027. Its time limit of 30 h requires a minimum speed of 5.4 km/h: rank 44 out of 49 of the widest cut-off times in XL.

XL ultra-trails 2027: 155 to 209 km-effort

Similar effort in 2027

Other trails worth preparing for

Sources and method

  • Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
  • Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
  • Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — C&O Canal 100

Weather for C&O Canal 100

The weather for C&O Canal 100 will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.

Detailed weather for C&O Canal 100, hour by hour on the course

Frequently asked questions

How many checkpoints?

C&O Canal 100 has 23 checkpoints: 21 aid stations and 2 checkpoints with undocumented contents. Details are in the two tables above.

What's the longest segment without aid?

The one leading to Manidokan: 12.8 km and 94 m elevation gain. That's the one to load up for first.

How do I find the exact location of an aid station?

The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.

What distance and elevation gain?

C&O Canal 100 is 161 km long with 292 m of elevation gain.

How long to finish?

With a UTMB Index of 600 (average runner), the estimated time is around 18h05 for C&O Canal 100.

What's the weather forecast?

The weather for C&O Canal 100 will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.

Want to stack the odds in your favor for C&O Canal 100?

In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.

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