The two best racehorses ever to pass through Mick Polson’s stables, Fujisan and Winooka, we're champions in their own right. Mick Polson acquired Fujisan in the autumn of his four-year-old season on behalf of one of his major clients, the bookmaker A. J. (Joe) Matthews. A well-built bay gelding by Valais, he was out of that good mare Lady San that had carried Fred Merton’s colours. Lady San was a quality mare having won the 1909 V.R.C. Oaks. Originally purchased as a yearling by J. P. Arthur for 500 guineas at the 1923 William Inglis Sales, the Valais horse had won the 1925 A.J.C. Doncaster Handicap with 8 st. 1lb (51kg) when prepared by the young Caulfield trainer Charlie Hodson. It was after failing in the same race the following year with 9 st. 7lb (60kg) that owner offered Fujisan at the Inglis sale of tried racehorses in April 1926, on the same day that both Heroic and Amounis also went up for auction.

While Heroic was passed in for 1500 guineas and Amounis was knocked down for 1800 guineas to Bill Pearson, Reg Inglis attempted to initiate the bidding process for Fujisan with a proposed opening bid of 1000 guineas. However, despite his efforts, there was an absence of interested parties, resulting in the gelded offspring of Valais remaining unsold and being withdrawn from the auction. The following day, Polson effectively concluded the acquisition through Inglis at a reported cost of 1300 guineas. Despite his recent Doncaster setback, Fujisan had demonstrated consistent improvement in his performances. Notably, he secured third place in the V.R.C. Newmarket while carrying a weight of 9 st. 5lb (59.5kg). Furthermore, he achieved an impressive race record in the Leonard Stakes, carrying 9 st. 11lb (62kg) over the same course.

Fujisan adequately reimbursed Matthews for his financial investment two months later by securing three victories in Queensland. The gelded offspring of Valais subsequently achieved a series of triumphs, establishing his reputation as one of the most accomplished sprinter-milers within the nation. A substantial financial reward was obtained from his unexpected triumph at Randwick in the Tramway Handicap of 1926, and an even larger sum was acquired from his victory in the All-Aged Stakes against Top Gallant, Amounis, and Valicare. Three remarkable achievements were his victories in the City Tattersall's Flying (6st. 7lb limit) with 10st. 9lb; the Railway Highweight on Melbourne Cup Day, 1926 (limit 8 stone) with 11st. 9lb (73kg); and the same race a year later with 12st. 1lb (76kg).

Unfortunately, the race in which Mick Polson and his associates placed their utmost confidence was the 1926 A.J.C. Epsom Handicap, where he commenced as a joint favorite with Amounis. This event witnessed one of the most significant betting failures in history. The stable's flat commission was £1500 at 15/1, totaling £24,000. Furthermore, Fujisan, along with Star Stranger, was supported for the A.J.C. Epsom-Metropolitan double. Frank McGrath, who had recently acquired Amounis, nonetheless strongly suggested to Polson and company that they should hedge their bets by taking out some insurance on Amounis. Polson and Matthews observed Fujisan, carrying 9 st 9lb, being defeated by three lengths by the younger Amounis, who was carrying 8 st. 11lb and set an Australasian record time on the opening Saturday. Subsequently, they witnessed Star Stranger emerge victorious in The Metropolitan on the following Monday. If Fujisan had been successful, Star Stranger's completion of the double would have resulted in the stable's earnings exceeding £43,000, reflecting the significant level of racecourse wagers during the prosperous Jazz Age. It is unfortunate that Joe Matthews and Mick Polson encountered a formidable racehorse during his rise to prominence, as the horse's exceptional abilities and advantageous weight allowance posed a significant challenge to their success.

Trainer, Mick Polson went for the big betting plunge on Fuji San, but was thwarted by the brilliant Amounis