It looks like you have had a great first few years of homeschooling.

How neat that he has done DITHOR with co-op as well. I looked on Mystery of History's site and it looks like if you are doing MOH1 that would be a credit of World History. If I was looking at this and making a transcript for my child I would look at it as these credits from 8th and 9th grade...
8th Grade
Math ~ Life of Fred, Pre -A w/ Econ, Pre-A w/ Biology, Pre-A w/ Physics, Decimals and Percents, Fractions
Science ~ Apologia Physical Science-1 credit Physical Science
English ~ Abeka Grammar and Composition II
History ~ All American History Vol. 1
Logic ~ The Fallacy Detective
Penmanship ~ Getty -Dubay
Spelling ~ Top 100 words every 8th grader should know printed from web
Reading: Drawn Into the Heart of Reading ( in a co-op, I had NO idea of the rest of the HOD curriculum!)
Devos/Bible study: Devos from our church
( I may be forgetting something here as at this moment I can't find my record book of what we did last year!) : )
9th grade
Math ~ Life of Fred Algebra 1-1 credit Algebra 1
Science~ Apologia Biology, The Young Earth-1 credit Biology
English ~ Still working on Abeka Grammar and Comp II, Wordly Wise 9 and we just purchased LIFE of FRED Language Arts!-Possibly 1 credit English 1 (not familiar with LOF LA, but it sounds like it would count for English 1
History ~ The Mystery of History -1 credit World History
Penmanship ~ Getty Dubay book E
Reading: supplemental books that go w/ The Mystery of History ( LOVING this!) He loves to read and reads tons of books on his own
Writing ~ Excellence in Writing student Intensive A, The Elegant Essay, Vocabulary Cartoons.I would count this in the English 1 credit
Lego Robotics Class through local Co-op-depending on hours spent I would count this as a credit or 1/2 credit elective in Robotics
Spanish ~ Rosetta Stone-1 credit Spanish 1
Geography ~ some online quizzes, pulling maps when we talk about locations in History. -I would count this in the World History credit
Devos ~ again devos from our church for our students-depending on hours spent at home and at church-I would count this as a 1/2 credit or credit in Religion 1 or Bible 1 (whichever course title you prefer)
Looking at all that-I would say so far you have credits for high school-
Science-
1- Physical Science (designate with an * on transcript and note completed prior to 9th grade)
1- Biology
History-
1- World History
English-
1- English 1 including composition and literature or
1/2- English with composition and 1/2 literature
Math-
1- Algebra 1
Relgion-
1- Religion 1
Electives-
1- Spanish 1
1/2 or 1- Robotics
It sounds like one great year and you have a great start to your high school transcript. It also sounds like you could skip World History guide with these credits. As World History will cover World History, Biology, and Spanish 1. Looking at it, I would suggest starting with World Geography and calling the Religion-Religion 2 and using everything else as is except Spanish, Science, and Algebra. For me, if Apologia Science is working...I would move on to the next required science credit or use the science recommended in WG as the publisher says this for credits-
The complete course of 12 chapters earns 2 high school transcript credits. Students who complete 6 chapters earn 1 high school transcript credit in basic physics or basic chemistry as applicable based on completion of specific chapters.
So you could either move on to Apologia Chemistry or use WG's recommended science and count it for 1 credit chemistry and 1 credit physics.
For Spanish-I would continue Rosetta Stone for Spanish 2. You could also use the Art of Argument to tie in with the Fallacy Detective you did in 8th grade for the Logic credit in WG. For Math, I would probably not switch if LOF has Geometry and it is going well for your child.
For English 2 and Literature, you could just go with HOD's requirements and keep using Abeka for Grammar and comp if you really like it and just use BJU for Lit. or you could switch to R&S English. For me, this would just depend on how much we loved Abeka grammar.
Anyway, looking at what you have done and what the guides will cover...I would think WG would be a great starting point and then skip over World History then do the 2 remaining American History guides. I don't know your state requirements either so if it were me I would print out a list of the requirements and start checking off the credits you have already covered and will cover with WG and see where you stand credit wise for 11 and 12.
I hope this is helpful and not more confusing.