In a season first, Leeton Greens have defeated Waratah Tigers.

The previously undefeated Waratahs were unable to contain Leeton at their home ground, going down by 17 points.

Leeton also wiped the paddock with Waratahs in the league tag match, posting a 32-nil shut out.

In another first grade upset, TLU Sharks overcame Black & Whites, in Griffith, grinding out their second win in as many weeks.

An undermanned Hay Magpies reserve grade struggled against Yenda, allowing Waratahs to edge forward on the Toby Blunt Cup ladder.

Round 13 results from across the grounds

Leeton v Waratahs at Leeton Sportsground

U18s - Waratahs 14 d Leeton 12

League Tag - Leeton 32 d Waratahs 0

Reserves - Waratahs 20 d Leeton 18

First Grade - Leeton 31 d Waratahs 14

Black & Whites v TLU at Solar Mad Stadium, Griffith

U18s - B&W 54 d TLU 4

League Tag - B&W 32 d TLU 8

Reserves - B&W 58 d TLU 12

First Grade - TLU 26 d B&W 22

Yenda v Hay at Wade Park, Yenda

League Tag - Hay 32 d Yenda 4

Reserves - Yenda 36 d Hay 20

First Grade - Yenda 28 d Hay 24

West Wyalong v DPC at Ron Crowe Oval

First Grade - DPC 62 d WW 18