Chris Carl, who resigned as secretary-manager of the Richmond Greyhound Club earlier this month, hit the ground running as a full-time trainer on Saturday night, landing a winning double with litter brothers Rostered On and Fast Car Driving.

Rostered On led throughout to record fastest time in the heats of the Ladbrokes Monthly Medal, scoring by a half length from Midnight Joyce in 29.78sec for the 520m.

Just over an hour later Fast Car Driving (pictured) wasn't headed in taking out a 520m fifth grade in 29.92sec, scoring by two lengths from favourite Sound Advice.

Rostered On and Fast Car Driving have been great money-spinners for Carl, their breeder, and have now won 27 races between them, including a dozen at Wentworth Park.                                                                                                    

Time standard on Saturday night was posted by the Sam Sultana-trained My Bro Connor, who finally fulfilled his early potential by running down pacemaker He's All Shine to win a 520m fifth grade by four lengths in 29.77sec.

My Bro Connor, part-owned by his breeder Peter Barnes, had been runner-up in two of four previous Wentworth Park starts but made full use of the rails draw to trail He's All Shine to the back straight before railing through to lead coming to the home turn.

Len Jones, who bought a greyhound called Swan's Mavis as a present for a relative, landed a city winner with the promising Family Spirit, a daughter of that gift greyhound, who took the lead at the half-way mark to defeat Detroit Cobra by three-quarters of a length.

Trained by John Callaughan, Family Spirit indicated a liking for a wide draw by winning from box six on Saturday, after being a slightly disappointing fourth, from box one, at Wentworth Park on Boxing Night.

Shocked, a litter brother and kennelmate to the 2018 group 1 Peter Mosman Classic winner Velocity Liberty, scored his second Wentworth Park win when he outsped and outstayed hot favourite Gunnell to win a 520m fifth grade in a personal best time of 29.96.

After the race trainer Robyn Goodwin disclosed Shocked had not had a trial since finishing second at his previous Wentworth Park outing on December 22.

"He has been allowed to do his own thing and run around his own half acre paddock every day,'' Goodwin said.

"It has been too hot to be trialling dogs during the day and I was confident Shocked was fit enough and did not need to do anything other than run around at home at his own pace.''