I am probably missing something but on the HAMR spreadsheet they have a total for Steve to 31 December (inclusive) of 26,918.5 miles.
The revised schedule on Steve's website for those months (8 Aug - 31 Dec) totals 27,860.5 miles.
Nearly 1,000 miles difference, and not in Steve's favour. Which means more 4.3 more miles per day (averaged out from 1 Jan- 7 Aug) if the HAMR spreadsheet figure is the one the attempt will be judged by, and a total of 50,231 from 1 Jan not 49,289 as the revised schedule is 942 miles short.
So per the new schedule the total will be 76,207.50 not 77,149.50.
Tarzan, if he rides 220 today as he has said he wants to, will total 76,066.
Hopefully someone will come along in a minute and tell me my maths is rubbish.