From the Del Mar website...

“Due to projections of rain from Tuesday through Thursday of next week in San Diego, Del Mar Thoroughbred Club (DMTC) announced today that its Thursday, November 21 race card has been cancelled. This action was due to “an abundance of caution,” said DMTC officials as the inclement weather likely will result in a muddy main track and soft turf course.”

Well – the forecast is kind of “scary” for Del Mar – heck, there is a full 50% chance of rain on Wednesday and it is in southern southern CA, so they do not see much water falling from the sky. Maybe they should start building arks as well. I know they are under scrutiny and many think the rain may have played a large role in the increased breakdowns at SA, but is this too conservative? I understand safety should be major concern, but this seems it was likely done to placate the politicians as much as anything, but this might be a precedent you do not want to set. Here is the forecast for Del Mar on those days.

TUE - NOV 19
Partly Cloudy
58-71
20% chance of rain

WED - NOV 20
Showers
54-62°
50% chance of rain

THU - NOV 21
Showers
52-62°
40% chance of rain