Washington was laid out with running in it, more or less by accident. The Mall is two
miles of gravel with no traffic on it, the Tidal Basin loops the monuments, and Rock
Creek Park drops a wooded gorge straight through the middle of the city from the
Maryland line to the Potomac. Two rail trails — the Capital Crescent and the Mount Vernon
— run out of town in opposite directions on old track beds.
It is two cities for a runner, not one. Measured against terrain data across the
nine routes below, six of them carry under five metres of climb per kilometre and the
other three carry ten to sixteen. The flat ones are the river plain — the Mall, the
Potomac parks, the tidal flats. The rest is the Piedmont edge the city was built up
against, and Rock Creek is where you meet it.
18 named features9 examples belowPotomac tidewater, DC
Nine routes in Washington DC, nine different requests
Nine, drawn on demand
Asked for“an easy 5K by the water”
The Tidal Basin and the monuments
The Tidal Basin and the monuments is a 5.2 km loop through the middle of Washington with 13 m of climb in it. Round the water past the Jefferson and the Martin Luther King Jr memorials, along the Mall side, and back over the inlet bridge.
Distance5.2 km
Ascent13 m
Steepest1%
On path6%
Confirmed lit83%
Tidal BasinJefferson MemorialWest Potomac Park
Why this one
There is barely any climb to place: 13 m across 5.2 km, and never steeper than 1%. 3% of it doubles back on ground already covered, and it stays within 1.1 km of the start.
The Capital Crescent Trail is a 7.6 km loop out of Washington on the old Georgetown Branch rail bed, with 43% of it off tarmac. The trail runs on its own grade above the Potomac and carries no road crossing; the return through Georgetown does.
Distance7.6 km
Ascent75 m
Steepest4.5%
On path43%
Confirmed lit5%
Rail trailCapital CrescentGeorgetown
Why this one
The climbing is spread evenly — no third of the route carries more than 44% of it. It doubles back on itself more than the others do, though that is still only 38% of its length.
Rock Creek Park is an 8.8 km loop in the wooded gorge that runs down the middle of Washington, and the most off-road of the nine at 54% off tarmac. It is also the hilliest of the nine, at 138 m of climb and 9.6% at its sharpest — the valley sides are the reason both are true.
Distance8.8 km
Ascent138 m
Steepest9.6%
On path54%
Confirmed lit3%
TrailRock Creek ParkRock CreekHilly
Why this one
48% of the climbing sits in the middle third — you start flat and you finish flat. 54% of it is off tarmac, more than any of the other eight.
Asked for“something short, right through downtown”
The National Mall
The National Mall is a 6.7 km loop from the middle of Washington along the gravel either side of the Mall, out to the Capitol and back past the Monument. It carries 19 m of climb and 21% of it is off tarmac, because the Mall itself is not paved.
Distance6.7 km
Ascent19 m
Steepest1.2%
On path21%
Confirmed lit0%
National MallUS CapitolWashington Monument
Why this one
There is barely any climb to place: 19 m across 6.7 km, and never steeper than 1.2%. It is the tightest loop of the nine, never further than 1.0 km from the start, so you can cut it short wherever you are.
Union Station and Capitol Hill is a 9.5 km loop from the concourse in Washington, round behind the Capitol through Lincoln Park and back down Massachusetts Avenue. It passes within 63 m of a public toilet, which is what was asked for.
Distance9.5 km
Ascent41 m
Steepest3.6%
On path2%
Confirmed lit71%
Union StationCapitol HillRestrooms
Why this one
The climbing is spread evenly — no third of the route carries more than 43% of it. Only 2% of it leaves tarmac, less than any of the other eight — it is the one to run when you do not want to pick your feet up.
The Mount Vernon Trail and the Potomac is a 13.1 km loop that starts across the river from Washington in Arlington and follows the water south, with 28% of it off tarmac. Reagan National is close enough that you run under the approach.
Distance13.1 km
Ascent32 m
Steepest1.4%
On path28%
Confirmed lit35%
Potomac RiverMount Vernon TrailArlington
Why this one
There is barely any climb to place: 32 m across 13.1 km, and never steeper than 1.4%. 18% of it doubles back on ground already covered, and it stays within 1.7 km of the start.
East Potomac Park and Hains Point is a 7.5 km loop on the spit between the Washington Channel and the Potomac, and the flattest of the nine at 4 m of climb in the whole run. Water on both sides for most of it, and almost nobody on it midweek.
Distance7.5 km
Ascent4 m
Steepest0.6%
On path33%
Confirmed lit0%
Potomac RiverHains PointEast Potomac Park
Why this one
There is barely any climb to place: 4 m across 7.5 km, and never steeper than 0.6%. 30% of it doubles back on ground already covered, and it stays within 1.2 km of the start.
Fort Reno and the Northwest ridge is an 11.3 km loop from the highest ground in Washington, with 142 m of climb and 5% at its sharpest pitch. Out along the ridge the Civil War forts were built on, and back down into the city.
Distance11.3 km
Ascent142 m
Steepest5%
On path3%
Confirmed lit0%
Fort Reno ParkTenleytownHilly
Why this one
61% of the climbing is in the last third. It finishes uphill, which is worth knowing before you set off. 6% of it doubles back on ground already covered, and it stays within 1.6 km of the start.
The monuments and rivers long loop is a 21.9 km run from the National Mall in Washington, and the longest of the nine. Out along the Potomac, over into Arlington, back across Memorial Bridge and round the Anacostia side, with 96 m of climb.
Distance21.9 km
Ascent96 m
Steepest2.2%
On path6%
Confirmed lit64%
Long runPotomac RiverMemorial Bridge
Why this one
The climbing is front-loaded: 58% of it inside the first third, so the run flattens out as it goes. Almost none of it is run twice: 1% doubles back, less than any of the other eight.
Each of those nine started as one sentence. Tell RunFlex the distance, the surface and when you need to be back, and it draws one from your front door — not from the middle of Washington DC, and not from a list of runs other people have already done. If it isn’t right, say what is wrong and it draws another.
You describe it, it draws itA sentence in, a route on real streets out. Say “make it flatter” and it redrafts from what you already have.
It shows its workingEvery route above opens on the measurements it was judged against — where the climb sits, how much of it you run twice, what it never gets further than.
Then it goes to your wristOne tap sends it to the watch, which navigates turn by turn on its own GPS.
Running here after dark
Washington is dark by 5:17 PM in December, so from early November most weekday runs here happen at night.
Every other route site tells you a run “feels safe”.
RunFlex reads the lighting recorded on the streets
themselves — the ways surveyed as lit, and the ways surveyed as unlit —
and matches them to the roads you would actually be running. Where nothing has been
recorded it says so, rather than counting silence as lit.
Coverage in Washington is a monumental-core story. The Tidal Basin loop runs 83% on ways recorded as lit and 9% on ways recorded as unlit, and the Capitol Hill loop out of Union Station 71%; the Mount Vernon Trail holds 35% across the river. Rock Creek Park is the opposite and says so — 3% recorded lit against 14% recorded unlit, in a wooded gorge nobody has surveyed much of. Where the lighting has not been recorded at all, the app says so instead of counting silence as lit.
What you get here that you don't get from a route list
Side by side
Other route sites
RunFlex
What you get
Routes other people ran, in a fixed order
A route drafted for the run you asked for, tonight
Where it starts
Wherever that person started
Your front door
Why this route
No reason given
The scoring is on screen while it drafts
If it is wrong
Scroll to the next one
Say what is wrong and it redrafts
On the run
Your phone, in your hand
Turn by turn on your watch, phone left at home
Who has run it
Thousands of people, and the mud and the closed gate are in the comments
Nobody. It is drawn fresh, so you are the one finding out
That last row is the real trade. A library of routes has been tested by other runners
and a drafted route has not. RunFlex bets that being able to say what you want tonight
is worth more than that.
Leave the phone at home
Send any route above to an Apple Watch and it navigates on its own GPS, turn by
turn, with a tap before each one. The run syncs back when you are home. None of
the other sites on this search can do that, because none of them are an app you
run with.
What you can run to from the Mall
All inside 8 km of the Washington Monument
Water
Potomac RiverAnacostia RiverTidal BasinRock Creek
Parks
Rock Creek ParkEast Potomac ParkWest Potomac ParkFort Reno ParkMeridian Hill Park
Traffic-free
Capital Crescent TrailMount Vernon TrailRock Creek Park TrailAnacostia Riverwalk Trail
Landmarks
National MallLincoln MemorialWashington MonumentJefferson MemorialTheodore Roosevelt Island
Daylight in Washington, month by month
Sunrise to sunset
The other thing that shapes a run here is how much light there is. The sun sets at
4:47 PM in mid-December and 8:35 PM in
mid-June, so the same after-work hour is a summer evening or a
night run depending on the month.
Computed for Washington at 38.9070°N 77.0370°W, on the 15th of each month in 2026.
Times are local — daylight saving time where it applies — and the clocks
go back on November 1, 2026, after which sunset on the Monday is
5:06 PM. First and last light are civil twilight.
The numbers behind the chart
Month
First light
Sunrise
Sunset
Last light
Daylight
January
6:56 AM
7:25 AM
5:10 PM
5:39 PM
9h 45m
February
6:32 AM
6:59 AM
5:45 PM
6:13 PM
10h 46m
March
6:52 AM
7:19 AM
7:15 PM
7:41 PM
11h 56m
April
6:04 AM
6:31 AM
7:45 PM
8:12 PM
13h 14m
May
5:25 AM
5:55 AM
8:14 PM
8:44 PM
14h 18m
June
5:10 AM
5:42 AM
8:35 PM
9:07 PM
14h 53m
July
5:24 AM
5:55 AM
8:32 PM
9:03 PM
14h 38m
August
5:53 AM
6:21 AM
8:02 PM
8:31 PM
13h 41m
September
6:22 AM
6:49 AM
7:16 PM
7:43 PM
12h 27m
October
6:50 AM
7:17 AM
6:29 PM
6:56 PM
11h 12m
November
6:22 AM
6:50 AM
4:54 PM
5:22 PM
10h 03m
December
6:49 AM
7:19 AM
4:47 PM
5:17 PM
9h 27m
Try it on your own run. Say the distance and the surface, and RunFlex drafts it from your front door — not from the town centre, and not from a list.
The National Mall is the obvious start: two miles of gravel path end to end, flat, with the Tidal Basin loop at the western end. Rock Creek Park runs north from the city on trail and closed parkway. Across the river, the Mount Vernon Trail follows the Potomac south without a road crossing, and the Capital Crescent Trail runs north-west on a former railway. All nine routes above start inside the District, and RunFlex will redraw any of them from your own front door.
Where can I run 5K in Washington DC?
The Tidal Basin loop is the obvious 5K in Washington: a little over two miles round the water past the Jefferson Memorial, flat and traffic-free, with the Mall's gravel paths alongside to make up the rest. The Mount Vernon Trail is the flat out-and-back alternative if you would rather not loop.
Is there a traffic-free running route in Washington DC?
The Capital Crescent Trail. It runs eleven miles from Georgetown to Silver Spring on a former railway alignment, sealed and traffic-free, so it works as an out-and-back at any distance you choose. The Mount Vernon Trail does the same thing along the Virginia bank of the Potomac.
Where can I run in Washington DC without a car?
Every route on this page starts inside the District, so none of them needs one. Smithsonian station opens directly onto the National Mall, which is two miles of gravel path end to end. Foggy Bottom–GWU is a few minutes from the Rock Creek trail and the Potomac. Cross Key Bridge from Rosslyn and you are on the Mount Vernon Trail, which runs south along the river without a road crossing.
Where can I run with other people in Washington DC?
DC Road Runners has organised group runs and races across the District for decades and welcomes drop-ins. November Project meets early and free, outdoors, no membership. Pacers and other running shops host free weekly group runs around the Mall and Rock Creek. Any of the routes above works as a solo run the rest of the week, and RunFlex will redraw them from your own front door.
What is the flattest run in Washington?
The flattest run in Washington of the nine on this page is East Potomac Park and Hains Point, at 4 m of climb over 7.5 km and never steeper than 0.6%. Mount Vernon Trail and the Potomac is next, at 32 m over 13.1 km. Both figures are measured off the drawn line rather than estimated from the map.
How hilly is Washington?
Washington is rolling rather than hilly. Measured across the nine routes on this page, the flattest carries 0.5 metres of climb per kilometre and the hilliest 15.7, and the steepest single pitch on any of them is 9.6%. The climbing sits in the valley sides rather than in any one hill.
When does it get dark in Washington?
In Washington the sun sets at 4:47 PM in mid-December and 8:35 PM in mid-June. The clocks go back on November 1, 2026, and sunset on the Monday after is 5:06 PM, so from early November most weekday running here happens after dark. The month-by-month figures are in the table above.
Nine of an unlimited number. Yours is not drawn yet.
Say the distance and the surface. RunFlex drafts it from your door and sends the one you pick to your watch. Ask again tomorrow and you get a different one. Free early access while it is being built — no card, and no price to pay yet.
RunFlex is built by Rob Gotlieb, who runs. The nine routes above were
drafted by RunFlex from the Washington street and path network, measured by the same
services the app uses, and read by a person before this page went up. Nobody has run
them end to end — that is the trade in the table above.
If something here is wrong, and on a page of nine drafted routes something
eventually will be, tell us and it is fixed on the next build rather than sitting in a
comment thread.