Lab Notes

Development Notes - October 17th, 2000

Jockeying for Position

We have been looking at a few additional indicators over the last few months and I shall be reviewing progress on those. The first batch of reports will be on jockeys, trainers and stalls.But today we start with jockeys.

Several years ago I did an analysis on the effects of a jockey on the performance of a horse. I concluded that there is no mathematically measurable correlation between jockey and performance. This seems somewhat strange when the top jockeys proveably win so often. The reason for this apparent paradox is simply that the top jockeys win so often because they pick or are picked for the best rides. I am sure that the more talented jockeys extract a better result than would have been the case with a lesser jockey, its just that it is really hard to measure this from the data available.

However, all is not lost. The jockey selected can still prove a useful indicator because the trainers will want and pay for a good jockey if they believe that the horse has a good chance of winning.

I have generated 2 measures of this jockey ranking:

  • Average rating of horses ridden
  • Average result achieved (100% represents all winners, 75% represents an average 2nd, 50% represents an average of 3rd, 25% represents an average of 4th and 0% represents all losers)

Rank  Jockey Handicap rating of average horse ridden Average Result Achieved
1 M J KINANE 131 42
2 GARY STEVENS 128 41
3 L DETTORI 127 42
4 R HILLS 126 34
5 K FALLON 120 40
6 PAT EDDERY 120 30
7 J REID 120 26
8 J P MURTAGH 120 38
9 T QUINN 119 35
10 CRAIG WILLIAMS 119 32
11 M HILLS 119 32
12 R HUGHES 117 30
13 J FORTUNE 117 30
14 O PESLIER 117 45
15 A P MCCOY 116 47
16 R DUNWOODY 116 41
17 P J SMULLEN 116 34
18 J TIZZARD 115 39
19 M A FITZGERALD 114 41
20 K J MANNING 114 32

Dave Taylor, October 17th 2000