No question who returned the top performance of the week: Mazal in the feature Group Two Queen Mother's Cup at Sha Tin on Saturday. Races over the 2,400-metre trip are too often run at a false pace but, although it was by no means a break-neck gallop here, Mazal was allowed to sit off a sensible, even tempo and skip home in a relatively smart final fraction of 23.6 seconds, clocking a useful Topspeed rating of 90. Sure, the track on Saturday was favouring late swoopers but that final split and overall time rating suggest there is nothing fundamentally wrong with the form of this particular race. Indeed, the result simply confirmed what a smart stayer the David Oughton-trained galloper is, having already notched that level of rating over the trip. Legitimate completed a stable one-two and re-affirmed himself as a stayer. He earned a time figure of 78 which represents a five point improvement on his previous best. Coach Maniac's recent form had been disappointing but he was getting his trip for the first time here and although he didn't get the best of runs, he returned a time performance equal to his previous best of 74. The plunge of the meeting came in the final race of the evening, with On Diamond Hill supported in the win pool from 23-1 to 6.5-1 and every quinella combination being hit with equal vigour. But, for those who got involved in the gamble, the race simply proved another example of how jockeys fail to learn from races and adjust their riding strategy for the prevailing conditions. This was the last race of an eight-event card and by now it should have been crystal clear that the track was favouring late runners, a bias that is always of greater significance in races run at a fast gallop. The sectional times and overall poor Topspeed rating for the winner - Super Fit clocked 52 - suggest that the final race at the weekend was run at too fast a pace. The 1994 Derby winner and runner-up Millenium Reigns (56) both swooped wide from off the pace. Yet, despite all the evidence of the previous races, On Diamond Hill was ridden close up on the faster early pace of the night. In the event, the horse performed with great credit to finish a close up third, the jockey didn't. Call Me Horse bowed out on a high note, landing the the Class Six Monaveen Handicap in the fastest time of the night relative to class. For the record, the veteran galloper is credited with a Topspeed rating of 36 which equates to only a two point inferior rating to his best over the last three seasons. With regard to a possible future bet, the third-placed Jonka is possibly the one. He had become disappointing this season but bounced back to form here with a 33 time rating, which equates to his best of last season, and is particularly significant considering he disputed the lead on a track favouring off-the-pace runners.