Spot on KV. That's exactly how I would do it.

The easiest way would be to have an excel spreadsheet where the race date is in column A, Race Number in Column B, etc.

Then I just change the app so that it can read the data in from that spreadsheet.

CSV or TAB delimited files are just as easy. As is XML. Actually, XML is probably the best option truth be told but it would require the user to know how to export to XML which isn't necessarily the easiest thing in the world (but it's hardly rocket science either).