The 2013 Rugby League World Cup generated profits that could rise in excess of £4m, it was revealed on Monday.
Tournament director Nigel Wood confirmed profits of at least £3.7m at a press conference in Salford which could still rise and double those made during the 2008 competition.
The 2013 tournament drew an aggregate crowd of 458,463, including an international record attendance of 74,468 for the final between Australia and New Zealand at Old Trafford.
Organisers reported eight sell-outs and eight stadium record crowds for rugby league matches.
Tournament general manager Sally Bolton also spoke about the financial impact on the towns and cities which hosted matches, claiming Cardiff benefited to the tune of £8.4m from hosting the opening ceremony and double header and that London enjoyed a £12.3m bonus from the semi-finals.
Wood said: "We believe that the success factors identified before the opening game were comprehensively delivered against.
"When the audit is complete, we will be reporting a profit in excess of £3.7m from a turnover north of £15m which will be passed to the International Federation to take the game forward."