A year later in the 1984 BDO World Darts Championship, he reached the quarter-finals, defeating Russell Stewart in the first round and then Malcolm Davies in the second round before losing to the eventual champion Eric Bristow in a 5-0 whitewash.
In the 1986 BDO World Darts Championship, Locke succeeded in reaching the quarter-final for the second time by defeating Canadian Bill Steinke in the first round and then Singapore player Paul Lim in the second round before losing again to Bristow in another whitewash with Bristow again going on to win his third successive world championship.
Locke made one more appearance in the world championships in 1987, losing in the first round Bob Anderson.
Then went on to become MFI world pairs champions a year later in 1987 [Locke/Bristow] who then beat John Lowe and Tony Payne for the 1987 title.
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