Bug in 8 weeks to 5k?

[Valkyrie Tina]

I am not certain, but I wonder if there is a bug on Day 7. If I look at the running times:
Day 1: 2 min run, 2 min walk, 2 sets
Day 3: 2 min run, 2 min walk, 3 sets
Day 5: 2 min run, 1 min walk, 3 sets
Day 7: 5 min run, 5 min walk, 3 sets
Day 8: 3 min run, 2 min walk, 2 sets
Day 10: 3 min run, 2 min walk, 3 sets

Day 7 is just so much more intense with 5 minutes than the other times. Is this supposed to be like that?

 

[neilarey]

@Valkyrie Tina hi
Yes, that is correct - every 7th day of the program is a challenge day.

I hope this helps!