A rule I was unaware of

[GPK]

In regards to Feed A Fever in the 1st at Hollywood today. I noticed her return race back on March 18 was listed as Clm 16000(16-14)-W

This is the first time I have ever seen a "W" listed after the race price and I came to find out that it means if a horse is gone for 180 days or more and returns to race at the same level, it has to option to be "Withheld" from being claimed in that return race.

Is this just a California thing? Learn something new all the time.