There was too much of a disparity between the teams to make for a good game, but Leigh tackled well at times and forced Sedgley to play "proper" rugby to score their tries.
The home side's main problem was a total lack of possession from any source except the scrum and, as a result, the entire first half was played in Leigh territory.
Wing Jonty Poward launched acounter-attack and good handling led to a scrum 10 metres out from which big Jonathan Dauncey scored.
Centre Jonathan France then scored a simple try and Sean Tate got one from an interesting short line-out move.
The fourth also came from a line-out, stolen ball from a Leigh throw. Stand-off Tom Leader made the break and scrum-half Ross Watson was in support for the score.
Tates second try followed and, with Leader landing four conversions out of five, Park led 33-0 at half-time.
The second half opened with a run by Jonathan Sheppard which led to a try for Josh Garside.
France then scored his second, from a quickly taken tap penalty.
Some nice three-quarter play brought a try for wing Sean O'Connor, which Leader converted, and Ciaran McGivney barged over from close range.
Leigh had played better in the second period, with Sedgleys defencestretched a couple of times, but Park had the final word with a maul driven powerfully into the 22. Centre Will Bate emerged with the ball for a try which Leader again converted.
This concludes the round-robin part of the Lancashire Competition and Sedgley's 100 per cent record ensures them a home quarter-final draw.
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