Four dropped catches cost Wycombe House dear as they slipped to defeat at Uxbridge on Saturday.
Having lost the toss for the seventh consecutive game, House were put into bat and lost some early wickets.
They were struggling at 39-3 until partnerships between Richard Bruce and Huw Taylor, then Mohsin Tirmizi and Akshay Deshmukh, settled the nerves.
Tirmizi made his 40 in flamboyant style with an audacious reverse sweep for four and went on to make a neat 60.
But with the tail blown away cheaply, House could only post 192 in the Middlesex County League, Division Three, clash.
On a good batting track with short boundaries and a quick outfield, this was always going to be diffi-cult to defend - but some tight bowling led to a clutch of early wickets.
Unfortunately, those dropped catches, plus bowlers overstepping at crucial times, meant House were unable to build on that early pressure. And despite a fiery spell from Gurjit Sandhu, who took 4-59, a flurry of late boundaries took Uxbridge to their target - and a four-wicket win - with only a few overs left.
Teddington still lead the way in the Premier after cruising to a seven-wicket win over Hampstead, who declared on 282-8 following an unbeaten century by former Middlesex man Paul Weekes. But S Oberoi's unbeaten 93, plus hits of 77 from Robin Jones and 70 from Toby Bailey, saw Teddington home with 286-3. Twickenham slipped into the Division Two relegation zone after being bowled out for 133 by Wembley, with Grant Hughes top-scoring on 58, having bowled out their hosts for 197, with Carlos Nunes taking 6-55.
Richmond are just one place ahead of them after, despite Steve Prices' 99, being bowled out for 200 at North Middlesex, who made their total for the loss of just three wickets.