2000 yards. Seems like my last few swims have been mostly repetitive 75m intervals. I do them, it seems to take awhile to get to the pool, do the workout, and drive back to work in time. Long arms, good breathing.
Warmup Set (300y)
3 x 100 easy-mod @ 2:20
Main Set (1400y)
18 x 75 @ 0:15 rest
50 non-free
Warmdown Set (300y)
250 easy-mod @ 5:20
50 non-free