Despite increasing the number of places available, both events sold out and entries were closed.
The weather was bright and sunny in marked contrast to the torrential downpours seen last time.
The winner of the main 10k race was Andrew Challenger, at 31 minutes 42 seconds, so the record set by Tedele Geremew in 2012, at 30 minutes 18 seconds, still stands.
Alive Leisure race director Roger Partridge said: 'We had a record entry this year to follow last year's record entry, and it was dream conditions for running.
'We have built up a monster of a show. While about two thirds of the runners were from the Norfolk/ Cambridgeshire and Lincolnshire area, others came from across the country. We had one woman from Elgin in Scotland and there were others from Yorkshire and London.'
The Tuesday Market Place was buzzing with stalls and stands and, for the first time, the eight bells of the newly-refurbished St Nicholas Chapel were rung.
The fast, flat course took runners on a loop through the town centre, through The Walks and along the waterfront, showcasing some of the town's key heritage and retail areas.
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