The axeman wasn't attacked as it had all its HP's
The extra combat listed doesn't change the odds already written, so you did have 99.3% odds, you were just unlucky enough to roll the 0.7% 8 times in a row.
If my maths is correct the chance of that happening is 1 in 1 734 665 000 000 000.
For comparison winning lotto is around 1 in 10 000 000. In fact you have a better chance winning lotto 2 weeks in a row then getting that result. Maybe you should buy a ticket
You should keep the screenshot it definately a once in a lifetime event.