Harpenden Town put their recent slump in form behind them with a gritty victory on the road.
Jake Anthony's second-half penalty gave Micky Nathan's men a 1-0 win at Shefford Town & Campton and moved them up to 12th in the Spartan South Midlands League Premier Division.
It was only a second win nine league matches and ended a sequence of three games without success.
London Colney had a week to forget, losing 6-0 at Crawley Green on Saturday before a 4-1 reverse at home to Aylesbury Vale Dynamos on Tuesday.
However, Colney Heath got an equally important victory, the first under new manager George Georgiou.
The 2-0 success at Arlesey Town was only the second in the league season, the first coming way back on August 13, also against the Blues.
Both goals came in the first half at New Lamb Meadow and it could have been even better when Bradley Dixon-Smith curled an early effort into the top corner, only to have it ruled out for offside.
The Magpies would not be denied though and they took the lead on 23 minutes.
A free-kick from Lewis Smith was put into the Arlesey box and Ryan Hillard's punch only went as far as Alex Cathline who made it two in two games by putting it back over his head.
The second arrived four minutes later.
Deondre Pascoe played a long ball forward which put Jayden Silcott-Brown away.
He held off a challenge from a defender before drilling it low into the corner under the keeper's diving body.
Hilliard's opposite number only had one scare in the first period but Adrian Darabant got down well to stop a fierce drive from Sunatasi Sendege.
The Magpies had plenty of chances to add to their lead in the second half but couldn't find another way through.
Hadley Gleeson hit the side netting while Karmel El-Maghur's first-time effort was well saved by Hilliard.
Yasin Boodhoo, Solomon Dawodu and El-Maghur again were the next to try their luck but the performance should give Heath plenty of belief ahead of Saturday's trip to Crawley Green.
Colney Heath Res lost 2-1 at home to Buntingford Town in the Herts Senior County League Premier Division, Jack McShane getting the goal, but the U18s enjoyed a victory by the same score against Leverstock Green in the Southern Counties Floodlit Youth League.
Sonny Dumbarton and Harley Fonti got the goals that move them third in the Corinthian Division.
Back at Harpenden, the U16s hosted EJA favourites Hertford Town and produced a dominant display to win 4-2 and stay top of the Brown Division.
Harps found themselves 1-0 down at half-time but some subtle tactical adjustments, and a few home truths from coach Kenny Mutsanya during the break, led to a much more clinical second-half performance from the forwards.
Ariel Murati hit a hat-trick and Fynn Sweeting got the other in a result built on hard work and great energy levels.
The U17s meanwhile won 5-0 in the U18 Blue Division away to Cambridge City.
The basement club were no match for Jesse Waller-Lassen's squad who took a 2-0 lead into half-time, courtesy of goals from Ben Crowder and Luke Hobson, with the latter taking his personal tally to three by the close of the game.
George Rice got the other goal and a superb defensive effort from Iñaki Garcia-Davies, James Whitney and Will Ascough in front of goalkeeper Archie Halward rewarded Town with their first clean sheet of the season.
Harpenden Town Ladies progressed to the quarter-final of the Beds & Herts League Cup with a 2-0 second-round win over St Margaretsbury.
Played on the artificial surface at Oaklands College, Melody Jones lit up the game with a thumping long-range effort that went in off the underside of the crossbar before Belle Shannon pounced for the second, reacting when a Rosie Makamain shot came back off a post.
Harvesters U18 girls began their league cup campaign with an 8-3 win away at Kinja in sight of the Wembley arch.
Three from Hollie Thornton, two for Eliza Telford and one for Grace Gavin made it 6-2 at half-time before Yasmin Howgego and Ida Sondergaard wrapped things up in the second period.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here