The Melton horseman, who was raised in Echuca and cut his teeth in the industry alongside his late trainer father, Jack, on a property on the edge of the town, made the most of his only drive at the meeting.
He partnered the Kyabram-trained trotter Jackson Square to a dashing win in one of the $10,000 feature events on the marathon 10-race card.
Caldow urged the Mick Blackmore-prepared Jackson Square from a 30m backmark into a forward position early in the small field before taking up the front running for the final two laps where he proceeded to run his rivals ragged in the 2530m marathon.
With a 28-second final quarter he pulled well clear of his rivals to beat the runner-up, co-backmarker Travel Bug by nearly 12 metres, with the favourite, Chissy, filling the minor placing.
Jackson Square was bred and is owned by Stanhope trots stalwart Mac Poole and is by Bicardi Lindy out of former multi-winning mare Front And Square, who has left another smart trotter in Majestic Grace.
• A betting plunge on Yorkshire in another of the features at the meeting, the Moama Bowling Club’s New Year’s Cup, delivered in spades.
The Shaun McNaulty-trained and James Herbertson-driven six-year-old firmed from $16 on fixed odds to start a $3.70 chance and proved too tough for his rivals after racing outside the pacesetter, La Puddie, for the last lap and a half.
The other feature, the Frank and Carmel Ryan Memorial Pace, provided an upset, with a 70/1 chance claiming the win.
The Ash Wharton-trained and Olivia Weidenbach-driven Modern Bliss secured an inside run in the straight to beat Cee Cee In America and a brave Brackenreid in a blistering 1.56.3 mile rate time for the 1755m trip.
Echuca and district trainers failed to crack it for a win on their home track.
The Ros Rolf-prepared Beach Time, also driven by Olivia Weidenbach, put up a bold front-running display only to be run down in the shadows of the post by the Bendigo-trained Ferocious Son, who had the sit on the Echuca mare in the run.
Tongala pacer Tasma Flash was supported confidently at nice odds in the opening event and figured in a blanket finish but had to be content with third place behind Miss Tyler.