its because u have many races dude ;p , i had exactley the same problem when i had 140 races my server crashed alot so i  moved it down to 100 it doesnt crash nowhere near as much , and it can also be the race nightcrawler if u have it , that causes server crashes so if u do have it , i suggest u remove it ;p

Having 110 races is not the problem but the problem is they are not codded correctly and contains so many errors. 

they're all coded correctly i've used mattie's syntax checker.

yes, Mattie cannot check for bad coded races, it just checks the syntax (number of quotes, brackets...)

There can be many reasons whats causing crashes, too large codes or bad code, maybe a loop or too long line?!
But its very hard to find out why it crashes....

In theory, WCS should run good, even with 200 races.

:*( well wen i had 140 races on my serve it crashed , but wiv 100 it doesnt so......