The &lt;a href="Snooker%20world%20rankings%202006/2007"&gt;2006/2007 season&lt;/a&gt; was the most successful of his career up till then. Day reached the quarter-finals of the 2006 Northern Ireland Trophy and was runner up in the 2007 Malta Cup, losing 4–9 to Shaun Murphy. That year's performance saw him ranked 16 in the world for the &lt;a href="Snooker%20world%20rankings%202007/2008"&gt;2007/2008 season&lt;/a&gt;, one place higher than in the previous year. As a member of the Top 16, he automatically qualified for tournaments.