The Dutch like their beers small with at least a few cm's of froth on top. There's no fixed size, but a 'fluitje' is generally around 200ml and a 'vaasje' between 250 and 300ml.
Fortunately, if you go into a bar in Amsterdam and asked for a beer, they'll usually recognise the British accent and offer you a pint, or at least a 500ml glass. Although it'll still have 2 inches of head on top.
The latest weather forecast for Sunday now predict that it will stay dry, or at least only very light showers. 13-15'C, although still a bit windy. Maybe I'll drag myself out of bed afterall
Haarlemmermeerstation is about mile north of the Olympic Stadium. The marathon course is an initial 5 mile loop back to the stadium and then out for the other 21, so we'll pass by Haarlemmermeerstation roundabout twice.