Greggs – A14 Eastbound, Newmarket – Opening Hours & Store Details Greggs is proud to be located on A14 Eastbound Services, about a 1.95 mile drive west of the centre of Newmarket (next to A14 / Newmarket Bypass). The store looks forward to serving the customers of Chancery Park, Studlands Park, Burwell, Exning, Newmarket and Swaffham Prior. If you plan to visit today (Friday), its hours of operation are from 6:00 am until 5:00 pm. Business hours, store address details or phone details for Greggs A14 Eastbound, Newmarket can be found on this page.