Harpenden will head into the final weekend of the season needing a slip up from Potters Bar if they are going to claim the Herts Cricket League Premiership title.
Both of the title challengers had dramatic games as rain made its presence felt.
Leaders Potters Bar won by just one run against Totteridge Millhillians.
They had made 280-6 before the wet stuff intervened and it left Totteridge chasing a target of 183 from 20 overs.
They needed six off the final over to win and had four singles form the first four balls before losing wickets to the final deliveries.
Harpenden remain five points adrift after claiming victory over West Herts. The winning margin was narrow too, just four runs.
They had made 120-4 in 23 overs but the Watford-based hosts were left needing to make 140 in their 23 overs after Duckworth Lewis got involved.
They needed nine off the final over but Harry Seagrave (2-22) took a wicket on the first ball and then gave up just four from the next five, finishing on 135-9.
Scott Galloway top-scored for Harpenden with 26 while both James Latham and Chris Swanson managed 24, the latter unbeaten as was Andrew Neal with his 23 in just eight deliveries.
Two of them went for four and two went for six.
Neal also got 3-15 but the pick of the bowlers was Alex Gosling with 3-12.
Harpenden host Bishop's Stortford while Potters Bar have a derby match at home to Old Owens.
Radlett had their game at Stortford abandoned because of the weather.
The visitors had batted first with Kabir Toor top scoring with 69 in a total of 218.
The reply lasted just five overs though before being washed out.
It leaves Radlett third in the table, a position they are all but confirmed to finish in despite what happens in their final game at home to already relegated Welwyn Garden City.
In the Championship, it was almost a complete washout with Redbourn's game with Hemel Hempstead Town and St Albans against Dunstable Town not reaching a conclusion.
It means Redbourn are all but down, 22 points behind Hemel and safety and a game with champions Shenley Village to come.
Shenley, who will play in the Premiership for the first time in their history next year, were also left without a result against Hoddesdon.
St Albans are safely in mid-table and will finish fifth this season.
They did get a result, beating Dunstable Town in a heavily rain-affected match.
Saints' Tom O'Toole was the star with 92 as they made 224-6 batting first, although he was pushed to that accolade by Connor Mitchell who took 4-14 from six over bowled.
It left Dunstable on 100-7 when rain finally put an end to the contest.
Elsewhere, Wheathampstead are still in the hunt for promotion from Division Three B after a three-wicket win over Cockfosters.
They had held the visitors to Nomansland Common to 188-7 in 45 overs and reached their revised target in 29 overs.
Faris Haider top-scored with 33 to leave them 11 points behind Tewin and 12 behind Welwyn Garden City seconds.
London Colney will be in the division regardless next season despite a washout against WGC.
They are seventh.
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