Gordon Blue will seek to maintain top spot on the ladder in the McDonald’s Women’s Premier Cricket Combined First and Second Grade T20 competition as it enters rounds six and seven this Sunday.

NSW Breakers batter Mikayla Hinkley and wicketkeeper, batter Hannah Trethewy will both captain Penrith and Campbelltown-Camden respectively on Sunday.

The ladder leaders play only one match on Sunday in a top of the table clash against Northern District at Mark Taylor Oval.

Gordon Blue will miss Breakers and Sydney Thunder allrounder, Saskia Horley, on Sunday, given her superb performances in McDonald’s Women’s Premier Cricket this season.

Horley is among numerous Thunder and Sydney Sixers players who are unavailable for rounds six and seven of the Combined T20 due to the start of the WBBL this weekend.

The allrounder has scored 229 runs at an average of 45.8 and claimed 13 wickets at 9.5 across all formats.

However, the Gordon Blue squad has substantial depth.

Allrounder Charlotte Anneveld, spinner Isabella Fitzgibbon and Elizabeth Mair have all been stand-out performers for Gordon Blue in the opening five rounds of the Combined T20.

Anneveld is among the top five leading run-scorers in the Combined T20 thus far. She has accrued 134 runs and been dismissed just the once.

St George-Sutherland captain Cailyn Fountain is the leading run-scorer after five rounds. She has made 170 runs at 85.

The Slayers meet Penrith in the only match on Sunday for St George-Sutherland.

Fitzgibbon and Mair further demonstrate the depth in the Gordon Blue squad.

Both have been in good form with ball in hand for Gordon Blue. Mair collected seven wickets at 5.29 in the opening four matches for her club, while Fitzgibbon has tallied six wickets at 8.5.

Hinkley will be key to the prospects of Penrith in its double header at Howell Oval.

Penrith play St George-Sutherland and, then Sydney, with three of its best players unavailable due to WBBL commitments.

These players include Thunder allrounders Naomi Stalenberg and Lisa Griffith, as well as Adelaide Strikers medium pace bowler, Sarah Coyte.

Hinkley has been a consistent performer for Penrith so far this season. She has scored 232 runs at 46.4 across all formats and, along the way, has also picked up eight wickets at 17.

Trethewy will lead Campbelltown-Camden at home against Bankstown Sports on Sunday. It is an important match for the Ghosts to keep touch with the top four on the table.

Campbelltown-Camden currently sit seven points outside the top four, in equal sixth position with Parramatta, who do not play this Sunday.

The fifth-placed Sydney are five points behind St George-Sutherland and Penrith in equal third.

In other matches, Gordon Red meet both the Universities' sides in a double header at Killara Park.

Gordon play Universities Gold in the morning and Universities Blue later that afternoon. 

The final round of the Third Grade competition takes place on Saturday before the semi-finals the following weekend.

Gordon meet Universities Blue at Forsyth Park, St George-Sutherland play Bankstown at Gifford Park and Campbelltown-Camden are at home to Universities Gold. Manly-Warringah have the bye.