Whilst working for an airline in the far south west UK (now, sadly no more) over 30 years ago, if you did the late shift on the Heathrow flights you did 8 sectors per day and often did that for 5 days on the trot, so that was 40 sectors in a week.
A decade before that I did 28 glider tows in a Wilga between a late lunch and an early tea. I must have flown in the morning and probably evening as well. The 28 were all recorded as one line in my logbook, though.