David Jacobson
From my private research, here's the breakdown of the top 10 last workouts, if any, of a representative sample of 130 winners trained by David Jacobson. This sample does not exclude 1st-time starters or horses which haven't run in the last 90 days.
All workouts are breezes on dirt. Of course on west coast, they will all be handy works; gate workouts are rare.
No workouts before win - 31.5%
Last workout before wins:
3 days before - 4F - 8.5%
2 days before - 3F - 7.7%
4 days before - 3F - 6.9%
3 days before - 3F - 5.4%
5 days before - 3F - 3.8%
4 days before - 4F - 3.1%
8 days before - 3F - 3.1%
10 days before - 3F - 3.1%
13 days before - 3F - 3.1%
These top ten account for 76.2% of Jacobson's total wins.
Workouts 3 days or less before the win account for 21.6% in the top ten of the Jacobson sample.
By contrast, workouts 3 days or less before the win account for 1.8% of 5343 wins in the research database of horses trained by others.
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