[Pablo]

I flagged all the new long tee box locations for the new holes on Tuesday. I even numbered the flags to represent the new hole number. New hole #2 plays to the basket that is past current hole #3 basket. Current hole #3 is still playable. (play both holes simultaneously)

New hole #10 plays along current hole #5 fairway to the basket that is past #5 basket. Current hole #5 is still playable. (play both holes simultaneously)

New hole #11 only has one tee box flagged, but you could use one of current hole #6 or #9 tees as an alternate (or flag another box).

18 holes:

#1 new long & reg long
#2 new long (twice or flag short box)
#3 reg & short
#4 new long & reg long
#5 reg & short
what will be #10 new long (twice or flag short box)
what will be #11 new long (twice or flag short box)
#8 (what will be new #12) new long & reg short
#7 (what will be new #13) new long & reg short

Playing holes #2 & #3 and holes #5 & #10 together is really the only way it works out.