The top three in the South Lincolnshire and Border League consolidated their places with victories over teams in the lower half of the league.
Leaders Grantham chased Welby’s 169 to win by seven wickets while Boston scored a three wicket victory over Long Sutton after Paul Roberts had taken five wickets for 14 runs off 11 overs.
And Matt Benson’s six for 24 helped third placed Lindum Ramblers to victory over Sleaford 2nd.
Moulton Harrox beat fourth placed Bourne 2nd to narrow the gap between the two, despite Tom Bentley’s unbeaten century for Bourne, while Woodhall Spa 2nd’s new signing Chris Anderson made the division’s highest total with 116.
Billingborough 2nd moved back to the top of the Division One despite going down to Friskney by eight wickets and now lead Spalding 2nd – who won a low-scoring game against Heckington by 30 runs – by five points with Market Deeping 2nd 14 behind the leaders following their six wicket victory over Woodlands.
Freiston and Lindum 3rd continue to battle it out at the top of Division Two, Lindum going into the lead after catching up their game in hand.
Freiston beat Timberland while Lindum overcame Belton Park 2nd, then Pinchbeck.
It was the game between Claypole and Grantham 3rd that provided the highlights of the division as Rob Pealing made the huge total of 180 to propel Claypole to 330 before the final wicket fell, while 19 year old Charlotte Cross claimed six wickets for Grantham who were then bowled out for 82.
Results - Premier Division - Long Sutton 104 (Roberts 5-14), Boston 107-7; Welby 169, Grantham 173-3; Woodhall Spa 2nd 257-6 (Anderson 116, Parsons 86no), Belton Park 158; Skegness 2nd 256-6 (Hewitt 83, Brant 53, Young 75), Stamford Town 135 (Williams 55); Bourne 2nd 194-6 (T Bentley 100no), Moulton Harrox 198-3 (J Barnett 80no); Lindum Ramblers 136, Sleaford 2nd 89 (Benson 6-24).
Division One - Billingborough 2nd 100, Friskney 101-2 (Grant 56); Baston 62, Cavaliers 63-1; Spalding 2nd 105, Heckington 75; Grantham 2nd 160-6 (Clawson 56), Long Sutton 2nd 161-6 (A Wright 62); Woodlands 76, Market Deeping 2nd 77-4.
Division Two - Claypole 330 (Pealing 180, Charlotte Croft 6-78), Grantham 3rd 82 (Revill 6-37); Timberland 115, Freiston 116-4 (Kirtley 52); Lindum 3rd 182-5, Belton Park 2nd 109; Sunday- Lindum 3rd 210 (Lilley 72), Pinchbeck 57.