As the title suggests, what is the highest mileage anyone has achieved in a day on trains? The one that springs to mind for me is 762mi42ch, on a North East Rover.
7th April 1997 I have 930 miles in my log; I can't remember where I went without digging up my notebooks but I was doing an all line rover that week, all long day trips starting and finishing at Epsom. I have quite a few days over 800 miles in my log over the years.
I think I've done 500 miles in one day for the RailUK Strathclyde Challenge - Manchester Victoria to Glasgow and back (223 miles each way), plus at least 50 miles on the Challenge itself.
Excluding days involving the sleeper my highest is around 852 miles in a day I did last July when on a FONW, London - Preston - Barrow - Carlisle - Dumfries - Gretna - Annan - Carlisle - Settle - (Walk to Giggleswick) - Lancaster - Euston - Grateley
Not a single day, but I have a twenty-four hour period, starting in the early hours of the 22nd of August 1991, when I had over a thousand miles.
Mines probably London - Munich or Vienna - Zurich - Innsbruck - Selzthal - Leoben - Vienna. How are we counting 'a day' if it's within a 24 hour period then I'd count Budapest - Vienna in the top list as well.
In a 24hr period I've travelled: Stockholm-Malmö-Copenhagen-Odense-Ringe-Odense-Hoeje-Holbaek-Copenhagen-Rødby-Puttgarden-Hamburg Then in the following day... Hamburg-Berlin-Lutherstadt Wittenberg-Dessau-Leipzig-Chemnitz-Dresden-Děčín-Kralupy nad Vltavou-Prague
Over a 24 hour period, probably about 1350 miles, on the Southwest Chief in the US (on one train). That was part of a coast-to-coast LA to Washington DC trip involving two trains back-to-back (changing at Chicago), so about 3000 miles in total spread over 2.5 to 3 days, all in coach class...