$588 returned from 838 1 dollar bets.
588/838x100 = 70% Return on Investment. Maybe ROI is used wrong here, I'm not an accountant I'm afraid. It's a loss though.

Not really surprising, if we just had to pick up the paper and see which horses were going down in weight 5 Kilos from their last run it would take a lot of the fun out of the punt.

Horses 3 or less lengths from winner last start within 42 days
521 Bets, returned $366, 59 winners, 70% ROI

If you want to check a few recent ones to make sure I'm doing it right:

Call me Henry 15/1/5 54Kg came 7th
26/12/4 60Kg 2.7L off winner

Hotel Casuarina 15/1/5 52.5Kg came 4th
8/1/5 58Kg 3.0L off winner

Rebotto 8/1/5 52.5Kg came 4th
26/12/4 58Kg 2.5L off winner

Recent winners under the system
Impressive stats - Ascot 20/11/04
Constantinople - 28/8/4 Belmont
Stockies Yarn - 18/9/4 Belmont

Sorry I can't give you any better news.

KV