Zipper's Me Mum has won five of her past seven starts and after drawing her favourite box at Wentworth Park tonight looks set to enhance that impressive strike rate.

The Robert Howard-trained speedster is unbeaten in two appearances from box one and will wear the red rug in race 10, a 280m fifth grade.

Zipper's Me Mum resumed from a spell to win over 272m at Ladbrokes Gardens on June 15, dwelling at box rise but rushing along the rails to lead quickly before scoring in a slick 15.96sec.

Her unplaced effort when fifth at her sole Wentworth Park appearance on April 5 can be discarded as she missed the jump from box seven and was badly hampered by a wide runner while attempting to cross to the inside of the track.

Hardest for her to beat looks to be Dark Layali, who has been runner-up in an exasperating five from six Wentworth Park 280m appearances.

But Dark Layali, who has chased home crack short course speedster Ducati George at her past two races, will need to "nail'' the start tonight, as she has drawn box five.

Let It Happen, who was slowly away but swept around his rivals to hit the front before fading to finish second at his Wentworth Park debut last Wednesday, could open his city account after drawing box one in tonight's opening race.

Let It Happen had box seven when run down by the unbeaten Zipping Truvy last week, but moves into the rails trap tonight.

"I think box one will suit him,'' trainer Peter Spiteri said.

"Let It Happen had a couple of trials around Wenty before last Wednesday's race and from the rails should give a good account of himself.

"He certainly has the ability as he has trialled a fast 22.40 over the Richmond 400m trip.''

Tonight's Masters race, a 520m affair for veteran greyhounds, looks a match between Rita's Boy (pictured) and Stilton Sox.

Rita's Boy, who has won 16 races over the Wentworth Park 520m journey, will be all the rage from box one but Stilton Sox, who has drawn two, will not be easy to overhaul if he beats the favourite to the first turn.

Stilton Sox led all the way from box two in downing a strong field over 520m at Nowra on June 17 and when he won a WP 520m trial on June 8 he ran home in an impressive 11.80sec.

Those figures indicate that if Stilton Sox makes the pace, he is capable of holding on and toppling the hotpot.

"After he won at Nowra he pulled up a treat, he could have gone around again the next day,'' Stilton Sox's trainer Phil Goodsell said.

"I train him out of a big paddock, he is like a free range chook and is very happy that way.

"Even if he doesn't beat Rita's Boy to the first corner, Stilton Sox will drop in behind him on the fence and wait for a rails run.

"He is definitely boxed where he wants to be as he has brought himself undone in some races by sitting on the inside waiting for a run when he could have won if he had gone around the leaders.''

Joker Poker is the only greyhound in race four, a 520m fifth grade, to have registered two wins at Wentworth Park, so looks well positioned after being unplaced in fourth class to the brilliant North at Wentworth Park last Saturday.

Joker Poker has box five but the draw should not worry him as he tends to run in the centre of the course.

Best Bet: Good Odds Buddy (race 8)

Best Value: Knocker Elly (race 5)

Quaddie race 5 - 3, 6, 2

Race 6 - 4, 8, 3

Race 7 - 2, 6, 3

Race 8 - 5, 4

$20 for 37.03%