THAT man Basil Marcus is impossible to get away from at tonight's Happy Valley grass meeting where the prolific champion elect has very real possibilities of a treble. Marcus, assured of a hat-trick of titles, has been given the perfect draw from which to dominate the opening event on Ivan Allan's last-start winner, Speedy Good (Nap). The number one stall has a profound advantage over the Valley's minimum sprint distance of 975 metres and one that should not be underestimated. Statistically, horses jumping from the inside berth have far outperformed the norm from all betting angles over the past four seasons - be it from a win, quinella or place point of view. This powerful statistic is enhanced further if the horse jumping from barrier one has early pace. Speedy Good doesn't just have that early dash, he has stacks of it and he has shown that time and time again by making all the running. Since he joined Allan for last season, Speedy Good has won four of his 11 starts and has clearly responded well to Allan's handling. Most importantly, he has basically made all the running on each of the occasions that he has won, including last time out when successful on the equitrack. Before that equitrack win, his record on the dirt had been very poor so that victory, in particular, underlines the improvement that he has made. And it is worth recalling that in the last of his three wins of last season he courageously held the late challenge of none other than Chiu Chow Warrior by a short head. Chiu Chow Warrior has since won his way to Class One. The main dangers may come from The Great Nature and Irene's Pet. Bruce Hutchison has freshened up The Great Nature after a spell and he's been going pleasingly in his work and trials. He also has some respectable 975-metre form to his name from earlier in the season when he was caught close home by Chater Sovereign and beaten just a neck in a similar event to this. Irene's Pet is probably the only one in this field capable of disputing the lead with Speedy Good. But he couldn't get to the front when beaten by Speedy Good on the equitrack last time and is unlikely to be able to head him tonight, especially with the draw in Speedy Good's favour. But Irene's Pet could still dispute the quinella as he was checked last time out otherwise he would have finished much closer to Speedy Good. Marcus could also be on the mark with star private purchase griffin, Quick Action, from the Ivan Allan stable. Quick Action is racing at Happy Valley for the first time which is always a bit of a risk. But such was the manner of his first-up victory that it is hard to conceive of this son of Alzao not being right in the shake up. He could have most to fear from John Moore's Shaka Zulu who put in one of those eye-catching runs last time out when apprentice ridden. Johnny Marshall is back in the saddle tonight and Shaka Zulu is facing a much less competitive field than he has raced against for some considerable time. He holds a great chance on the kind of form he showed when staying on strongly to finish a half length third to Classabove over tonight's course and distance in a Class Two event back in the middle of November. Marcus' other main chance looks to be on Eddie Lo's Fook Win in the second event. Fook Win missed the start and could never land a blow behind Make Merry over 1,400 metres at Sha Tin last time but he was noted staying on really strongly to the line. The main quinella chances look to be the improving Fairmount, who will relish the mile, and Crescendo, who was just touched off by Magician last Wednesday.