The cup holders made short work of The Bourne, the halfway leaders, while Tilford and Grayshott could do no better than draw with determined relegation strugglers Chiddingfold and Elstead.
There was no hint of a Bourne batting collapse while Sale and Hales were putting on 32 for the first wicket. But, having dismissed Sale with a good ball, Toby Falkiner started to move the ball off the seam and cause problems for all the batsmen.
Bourne had no answer to Falkiner and Coldicott and slumped to 84 all out in the 34th over.
Falkiner, who has emerged as a key player in Frensham's late surge, returned match- winning figures of 7 for 19 off 17 overs.
Frensham opened with Coldicott in the hope of getting the runs quickly, but this ploy was foiled by Mayhew's superb slip catch off the bowling of Rooke. Harrison and Willson took a more cautious approach and effectively clinched victory by adding 51 for the second wicket. Potter finished things with a quick 20, taking 17 off an over from Frommholz.
Tilford were guilty of complacency after reducing Chiddingfold to 67-5. They thought they had the game under control, but Moir and Jones had other ideas. Moir took the fight to the bowlers from the first ball and, although having his luck, played a series of high-quality shots, including two massive back-foot sixes.
He hit 65 and the visitors finished on 179-8 from the 48 overs.
Five of Tilford's top-order batsmen got in, only to throw their wickets away. True, Chiddingfold bowled a consistent line and length, with Charlie Watts claiming the prize wicket of Matt Barnes for 35 and ending with fine figures of 2 for 65 from 21 accurate overs.
In the end, Chiddingfold were pressing for a shock win, while Tilford had to rely on their last pair of Coombe and Robertson to hold firm and make sure of four points.
Grayshott, after their experience of the week before, chose to bat first at Elstead and an opening stand of 56 between Wheble and Coleshill and a useful late partnership between Baker and Lindsey-Clark led to an early declaration at 177-7 after 42 overs. Allen took 5 for 72 from 21 consecutive overs.
Elstead, after a bad start, had Crutcher and Diacon to thank for setting up a possible victory. The chase was on until the 43rd over when Elstead, losing wickets quickly, adjusted their sights to a draw. Lindsey-Clark bowled aggressively for his five wickets, but Elstead just held out, with nine wickets down.
Headley were unable to give New Zealand-bound Lester Hoare a winning send-off as Dogmersfield, fighting for their survival, secured a winning draw. Dogmersfield recovered from 28-4 and then 113-8 to total a very respectable 160-8 in 45 overs. Neil Shirley and Ed Smith rebuilt the innings and Hyland struck some lusty blows near the end. Fairall bowled another fine spell, but Headley paid for some lapses in the field.
Headley scored at snail-like pace as Bowers reeled off 11 overs for seven runs. Rooney made 13 off 83 balls before Smith ended his agony, but then Dave Cook came in to play his best innings of the season. He and Arend put on 81 to make certain of a draw and Cook's 50 included three sixes. Headley still have some work to do in their last two matches.
Fernhurst were a comfortable 167-5 from 44 overs, but then lost four wickets for as many runs and ended on 185-9 from 48 overs. And they looked likely winners when they had Witley at 98-7 with 11 overs left.
However, Jones and Fawkes had other ideas and, scoring at 10 an over in a rousing stand of 77, they took the visitors to the brink of victory. They couldn't quite make it, finishing five runs behind, but took the extra points.
John Crouch dominated the innings with 63 as Puttenham totalled a respectable 159-9 in 45 overs at Lindford. Keddle bowled well for his three wickets.
Lindford were up with the asking rate for some time, until the in-form John Crouch applied the brakes with a spell of 11 overs for 23 runs. At stumps, Lindford were nine runs behind with three wickets standing.