Dudley Kingswinford became the sole West Midlands survivor in the Powergen Intermediate Cup as they put on a dazzling second-half performance to beat Caldy 31-10.
With Walsall falling to Midlands One rivals Dunstablians, Newport crashing out at home to Stockport and Rugby Lions losing on their own pitch to Hull, DK subdued a feisty home pack and built on a 7-5 interval lead with three second-half tries.
The win puts them into the last 16 of the tournament and just three matches from a Twickenham final, continuing what has been an excellent few week for the men from Heathbrook.
Andy McClellan went over in the first half and was followed after the restart by Pete Knight, Nigel Francis and Simon Fletcher as the visitors outlasted their Wirralbased hosts.
In league action, Bromsgrove's match with Bedford Athletic was stopped after 61 minutes after Ali Hall was knocked unconscious.
The score at the time was 38-10 to the hosts, who now move to the top of the Division, two points ahead of Rugby Lions and four in front of Dudley. Bromsgrove remain rooted to the bottom without a league win all season.
Broadstreet continued their rampaging form in Midlands Two West with a 37-0 thrashing of Old Laurentians. The Coventry side have won all nine league matches and have conceded just 59 points, less than a try a game.
Barkers Butts, on the other hand, remain in midtable after giving Malvern their first victory of the campaign - a 19-11 win at home. Kenilworth stay second.