I thought it was impossible too, until I carried out this analysis earlier today. What's your take on this:
Pool size on the 17/07/2018 (estimate)
600 - 1200: 219
451 - 600 : 314
441 - 450 : 866
Total: 1399
441 to 1200: Pool size entry (300/day) 17/07/2018 - 24/07/2018: 2400 - 2700
Draw size: 3750 (25/07/2018)
(2400+1399) Total: 3799...... 49 left on 441
(2700+1399) Total: 4099.....349 left on 441
Either way, cut off estimate (25/07/18): 441
Tie break with 49 left on 441: ??
Tie break with 349 left on 441:??
08/08/2018 next draw size: 4000
Please note: 300/day (441-1200) is a conservative estimate (this has been overestimated to accommodate IELTS result effect, if there is any). Typically, the 300/day entry should include profiles with/on 400 crs.
If this is the case, the 25/07/18 draw should clear all profiles on 441, and possibly include very few profiles on 440. In summary, tomorrow's draw could be 440 optimistically, or 441 conservatively.