I am trying to estimate how long the swim leg might take me for my first Tri.

Last night I swam in the pool for 600 yards, which is slightly more than the distance of the race. It was the first time I've timed myself, because I didn't want to be focused on "beating my time" every time I get in the water.

I'm wondering how my time in the race might compare to my pool time. I will be renting a wetsuit, and I am pretty comfortable with OW swims. I spoke with one of the race coordinators, and he indicated that we'll be swimming with the current.

In general, is the pool time a good estimate, or are people usually faster/slower during the actual race?

Thanks.