That's three times she's beaten me — I must be slipping!

[Vik-Nik-Sor]

slip
BECOME WORSE
5. intransitive
to fall to a lower level; to become worse
That's three times she's beaten me — I must be slipping!
OALD

I can't understand -- whether being slipping is a reason of being beaten or it's a result (she beats me and so I get worse):-?
Thank you

 

[SoothingDave]

His skills are slipping. That is the reason he is getting beat.

 

[MikeNewYork]

That should be her/she.

 

[Roman55]

I am not a teacher.

That should be getting beaten.

 

[Vik-Nik-Sor]

That should be her/she.

Why...?

I am not a teacher.

That should be getting beaten.

What does "that" refer to...?

 

[Roman55]

I am not a teacher.

In my case, that refers to 'that which was written in the second sentence of post #2'

 

[MikeNewYork]

In my case, your sentence referred to she. Dave referred to "he".

 

[Roman55]

I am not a teacher.

The person who is doing the beating is a she. The gender of the person being beaten is unknown.