Stephen turned pro in 1992 and won several tournaments in Australia the 1990's despite having two ribs removed in 1993 due to a blood clot in his shoulder. Between 1998 and 2003 he made the top 15 on the European Tour Order of Merit three times and won four European Tour events.
His most successful finish to date remains to be a second place finish at the 2003 U.S Open. In the past few years he has mainly played on the Australasian and Japanese tours.
Stephen has recorded 2 top 5 finishes in the last two years, both of them on the PGA Tour of Australasia, at the Mercedes Benz truck and Bus Victorian PGA Championship and the Northern Territory PGA Championship.
Stephen recently played in the Fiji International in 2017 finishing T20.
Played at Royal Perth Golf Club, Leaney fired rounds of 64, 71, 69, 69 for a tournament total 15-under 273 to secure a one shot victory at The Nexus Risk TSA Group WA Open
- Four time European Tour winner
- 2003 US Open Runner Up
- Five time WA Open winner
- Member of the 2003 International Team in the Presidents Cup
- 4 wins on the European Tour
- A 4th place at The WGC Accenture Match Play
- Winner of the 2017 Nexus Risk TSA Group WA Open in a play-off