Trump had a brief spell as world number one after winning the International Championship in November, before Mark Selby hit top spot by taking the williamhill.com UK Championship crown. Now it's 23-year-old Trump back on top despite his 6-4 defeat against Stephen Maguire in the semis in Wales.
Maguire went on to win the title and is up to number six. Runner-up Stuart Bingham has a career-high position of seventh.
Ball by ball scoring and results from tournaments