Each club won their two home rinks, but Louth enjoyed better winning margins.
The rink of Allan Dent (Senior), Alan Watson, Mally Hewson and Mark Freemantle won 24-13, while Alan Dent (Junior), Horace Cope, Paul Dent and Keith Kelly won 20-9.
At Doncaster, the Louth four of Simon Reeson, Russ Dent, Simon Dent and Ian Betram almost pulled off another win, but slipped up on the final end and lost by a shot.
The next round is scheduled for Saturday, November 19 where Louth will meet the winners of the Lincoln versus Selby tie.
* It was not so good news for Louth’s mixed team in the Egham Trophy as they went out of the competition, losing 88-69 on aggregate shots against Boston.
Their only success came from the rink of Allan Dent, Val Sherry, Irene Bailey and Mark Freemantle which won 21-15.
There was a close contest on Simon Reeson’s rink which eventually lost 21-19, and Andy Leggett’s rink were only three shots behind going into the last end, but dropped a four to lose 19-12.
But the main damage was done on the other rink where Boston raced into a 17-0 lead. The Louth four won the next seven ends to narrow the gap to seven shots before Boson eased away again to win 33-17.
* The club’s Roving Jack singles competition was won by Allan Dent who defeated Robin Barrow 9-1 in the final.
Both players had won all four of their respective group games to reach the quarter-final stage where Dent then beat Brian Smith 10-3 and Barrow beat Chuck Rose 7-4.
In the semi-finals, Dent eased past Mike Lee 8-3, while Barrow reached the final with a 7-2 win against Ken Hasnip.