Just 14 points separate the top four of the Hevey Building Supplies NCL Premier Division.
With 10 games remaining, Rushton moved up to pole position by a single point with a five-wicket defeat of Peterborough at Station Road.
Having won the toss, Peterborough were bowled out for 160, Ashley Rogers top scoring with 53, as Dan Bendon did the damage with figures of 6-36.
This total didn;t cause any undue difficulties as Ben Mansell’s 61 steered them home with 13 overs to spare.
A mere seven points behind in third are Rushden who saw off Brixworth by six wickets.
The home side collapsed from 67-0 to 131 all out with Gareth Griffiths (4-6) having the most impact and Mikey Phillips (46) ensured the chase was a straightforward one.
The Old Northamptonians are lurking menacingly in fourth after they got the better of Wollaston by 61 runs.
Rob White (102) made his second century in as many weeks as the visitors totalled 248-8 before declaring with two overs remaining.
The hosts were then dismissed for 187 (Liam Bates 59) with Tom Heathfield taking 4-54.
Finedon Dolben are next in the list as they had too much for Stony Stratford.
Stony managed 145 which Finedon knocked off for the loss of only two wickets.
Oundle picked up win number seven as they beat Northampton Saints by six wickets.
Bashrat Hussain took 4-32 as the Saints were dismissed for 151, Mark Wolstenholme making an unbeaten 51.
The hosts lost three early wickets but an unbeaten 50 from Alex Martin and 46 from Phil Adams saw them over the winning line.
Horton House’s best campaign for years continued as they demolished Burton Latimer by 208 runs.
Leo Carter hit 140 - his third century of the season - and Jack Johnson 65 as the hosts racked up 333-5 which was far too many for Burton who were skittled for 125 (Luke Odell 51) with Charlie MacDonnell taking 5-35.