Why is it impossible that chip races added 514,000 in chip value to the WSOP main event?
The 25 chips were raced off during the split day 2, which began with fewer than 3500 players. If all 350 tables were still there and every one of them added the maximum 50 in chip value, that would add 17,500 to the event. Probably more than 1/4 of those tables had already broken and probably only 1/4 of the maximum 50 was added per table.
The 100 chips were raced off at the end of day 3, with 481 players remaining. If all 54 tables added the maximum 200 in chip value that would add 5400 to the event, but the expected add is zero.
The 500 chips were raced off with 288 players remaining. If all 32 tables added 500 that would add 16,000 to the event. The expected add is half that.
The 1000 chips were raced off with 49 players remaining. If all six tables added 2000 that would add 12,000 to the event. The expected add is zero.
So the very maximum possible in added chip value is 50,900.
Now it's still possible the listed chip count at the end of yesterday was inaccurate. But if not...where did the half million come from?