The best place to watch other people doing physical exercise is the pub, because beer helps you forget all the guilt.
Maybe you know somebody who’s running on the 22nd April and you want to show your support by drinking as many pints as the number of miles they’ll be running. (That last 0.2 of a pint might be a bit of a struggle, but you’ll make it across the finish line – we believe in you.)
The ⭐️ indicates that the pub is a Wetherspoons, not that it is particularly worthy of a gold star. Though, generally, those two traits do go hand in hand.
Greenwich/Charlton (Start → 1 mile)

Woolwich (1 mile → 2 miles)
(4 miles → 5 miles)
Greenwich (5 miles → 6 miles)
(6 miles → 7 miles)

Deptford (7 miles → 8 miles)
(8 miles → 9 miles)
Tower Bridge (12 miles → 13 miles)
Limehouse (14 miles → 15 miles)
The Grapes (owned by Gandalf. Read about it here.)

20 miles → 21 miles
21 miles → 22 miles

Tower Hill (22 miles → 23 miles)
23 miles → 24 miles
Westminster (25 miles → finish line)

If you are looking for a pub that might be off the main track try The Barley Mow at Horseferry Road