On more running day in Week 9 would be >10km pushing it easily over 120km.
My main running days are Monday, Wednesday and Thursday. November 1st was a Saturday, so it means the 29th and 30th were also a weekend. So it only had 4 sets of Mon/Wed/Thu.
December starts on a Monday, so it has 5 Mondays. Being 31 days it also has 5 Wednesdays, so they'll be two more running days in December, although I won't run on Christmas day.
So, start with 17.2km in the first week.
Week 1 = 17.2km
Week 2 = 17.2 * 1.1 = 18.9km
Week 3 = 18.9 * 1.1 = 20.8km
Week 4 = 20.8 * 1.1 = 22.9km
17.2+18.9+20.8+22.9 = 79.8km
Week 5 = 22.9 * 1.1 = 25.2km
Week 6 = 25.2 * 1.1 = 27.7km
Week 7 = 27.7 * 1.1 = 30.4km
Week 8 = 30.4 * 1.1 = 33.4km
25.2+27.7+30.4+33.4 = 116.7km
On more running day in Week 9 would be >10km pushing it easily over 120km.
My main running days are Monday, Wednesday and Thursday. November 1st was a Saturday, so it means the 29th and 30th were also a weekend. So it only had 4 sets of Mon/Wed/Thu.
December starts on a Monday, so it has 5 Mondays. Being 31 days it also has 5 Wednesdays, so they'll be two more running days in December, although I won't run on Christmas day.