Colin Sheridan: How I found the real magic of running on the streets of Vienna

In April, a record 55,000 took part in the London Marathon. Picture: Yui Mok/PA Wire
About 10km from the end of the Vienna marathon I reached a sort of athletic Elysium. I’d fallen into step with a man I assumed to be a Spaniard. For over an hour, the two of us ran in symbiotic silence, our feet hitting the road in perfect unison. He was much shorter than I, but judging by his gait and weather-beaten face, I was confident he would carry me home.
I don’t fully understand what running cadence is, but I guessed my new hermano had mucho of it. We were running around four minutes 23 seconds per kilometre (about seven minutes per mile) and had over three-quarters of the race run. If you took me back to January 1, when I was significantly less healthy and found five miles a struggle. I would never have believed this moment possible.