Boston Marathon presented by Bank of America: Course, Route Profile & Map

Course & Elevation

The start in Hopkinton sits at about 140 metres, the highest point of the day, and the road drops immediately. The first mile gives away a good 40 metres; by kilometre 6.5 the course has descended 110 metres against only 26 metres of climbing. Route 135 then rolls through Ashland, Framingham and Natick in small waves: between kilometre 6.5 and 27 the course loses barely ten metres in total, but it is never actually level.

The route crosses eight Massachusetts cities and towns. Just before halfway comes the Wellesley Scream Tunnel, which the organizer itself calls one of the loudest spots in all of road racing; Brookline supplies almost three miles of spectator-lined Beacon Street. At Kenmore Square the field meets the crowd walking out of Fenway Park - since 1968 the Red Sox have played the only morning game on the baseball calendar on Patriots' Day. Then right on Hereford, left on Boylston, done.

At kilometre 27 the race turns right at the Newton fire station onto Commonwealth Avenue, and the decisive section begins. Three climbs follow in sequence: 450 metres at 4.4 per cent for 20 vertical metres, 350 metres at 3.8 per cent, and from kilometre 32.8 Heartbreak Hill, 650 metres at 4.1 per cent for 27 metres. Its summit by Boston College is at about 71 metres - and the last nine kilometres then drop another 92 metres.

Pacing Strategy

Boston is not a free net-downhill; it is a race about muscle damage. The opening 6.5 kilometres hand you 110 metres of descent, and that is where the damage is done that you pay for 30 kilometres later. Run the first mile deliberately slower than the gradient invites, with short ground contact and a high cadence rather than long braking strides.

The middle section from kilometre 6.5 to 27 looks calm - nearly half the course sits in the flat band under one per cent - and is still the second trap. The undulations are small but constant, and the noise of the Wellesley Scream Tunnel just before halfway pulls the pace up. Two seconds per kilometre too quick here will not show until Newton.

The race is decided between kilometre 27 and 33.5, where 76 metres of climbing meet 27 kilometres already in the legs. Take the three Newton climbs on perceived effort rather than pace - none is steeper than about five per cent, but all three arrive too late to be forced. The real trap is the summit: Heartbreak Hill is not followed by recovery kilometres but by 92 metres of descent through Beacon Street and Kenmore Square on quadriceps that have been braking since Hopkinton.

Training plan for Boston Marathon presented by Bank of America: 12-week build

For age-group runners who have met the qualifying standard, race day runs somewhere between about 2:45 and 5:00 hours depending on the age band. The demand is aerobic throughout: no anaerobic spikes, no steep ramps, not a single segment above eight per cent. What loads you is eccentric work - 375 metres of descent against 238 of climbing, arranged in a profile that falls, then climbs, then falls again.

Two sections decide the day, and they are linked. The descent out of Hopkinton creates the muscle damage; the Newton Hills from kilometre 27 call it in. Both are trained in the same session: long runs with the climbing loaded into the back end, and downhill repeats on three to five per cent grades, started early in the block in small doses and built up slowly.

April in New England is unpredictable. Across 26 years the race has started at an average of 12 degrees with a daily high of 17 and a light east-southeasterly, but 2012 started at 24 degrees and reached 33, while 2026 started around freezing. The late start compounds it: waves leave between 10:00 and 11:21 after a long wait in the Athletes' Village and a kilometre-plus walk to the corrals. Rehearse breakfast, waiting time and race fuelling in exactly that window, and plan kit for both extremes.

The training emphasis is quadriceps durability: downhill running, strength work for quads and ankles, and marathon-pace work on rolling ground rather than flat. Add a hilly block to long runs after 25 to 30 kilometres so the climbs are practised on tired legs. Then train the switch back: after Heartbreak Hill you have to run long and relaxed downhill again at the point where the legs would rather not.