The line between Cambridge and Newmarket was doubled in 1875. An additional island platform was opened on 1 September 1879 for general traffic located on the direct Ipswich - Cambridge line. This meant that through trains no longer had to reverse in and out of the original station and the original terminus station was then used for
race day traffic and any Newmarket - Cambridge services. At the north end a footbridge linked the terminal platform and the new platforms (which were at a slightly lower level) and these remained open until replaced in 1902 by a new station to the south. The former terminus became known as Newmarket (High Level). The new platforms were located just south of the 1,100 yard Warren Hill tunnel and lasted until 1902 when the new station opened (see below). The island platform survived disused for a number of years and pictorial evidence from the 1900s shows the surface was partly broken up and flowerbeds created. The platform was removed sometime in the 1930s to enable the main line to be re-aligned so more siding space could be created at the old terminus site. An additional platform at the terminus station (known as the third class platform) was opened in 1885 to cope with additional raceday traffic. Opening the same year as Newmarket Warren Hill station the old station site dealt with race traffic from the south and London whilst Warren Hill dealt with traffic from the north and east. During World War I the terminus station building was used as a temporary hospital. Race day traffic ceased using the terminus platforms in July 1954. The track was lifted in February 1969. The main station building received grade 2 listing but fell into a state of disrepair. It and the remaining buildings on the site were demolished in 1980 and the site is now occupied by a housing estate. ==Engine shed==