Some movers below the contenders

The see-saw battles continue for the championships and for top spot on our ratings in both the jockey and trainer ranks, but there are changes afoot further down the tables.

Joao Moreira currently has the momentum, the championship lead and our best jockey rating, with Zac Purton undergoing a slump in his usual form at present. Amongst the trainers, it's even closer, with little between John Size and Frankie Lor, who have been arm wrestling for months now at the top positions.

But Blake Shinn and Lyle Hewitson have been big movers in May on our jockey rankings and Douglas Whyte has surged through the ranks of the trainers to third position in that division.

Whyte has been the oustanding trainer of the last month, landing 16 wins from his last 100 runners, bettering 14 from Lor and 13 from Size and a resurgent Tony Cruz. The 13-time jockey championship winner did well enough in his first two seasons as a trainer but this has been a breakout year in many ways, including his position as the leading G1 yard for the season.

Moreira has led the way for wins in the jockey ranks lately with 20 wins from his last 100 rides but Hewitson (15) and Shinn (13) have been next best and both managed to slip past Vincent Ho and Alexis Badel, whose returns have been short of their usual form.

(Note, apprentice jockey ratings reflect performances with allowance "built in". As they lose the claim and compete on a more equal footing, we expect their rating to deteriorate unless they prove to be high class riders.)

​These numbers are updated regularly, many change considerably through the season. They are designed to reflect current form but with past figures also putting a brake on hot-streak performers or lifting up a long-term quality player having a quiet run.