Sentence diagrams make grammar visual, logical, simple, and easy to see how the parts of speech are related.
The parts of speech description in this sentence is as follows:
• Although – subordinating conjunction. Introducing a clause that expresses a concession.
• It- pronoun. The third-person singular personal pronoun that is normally used to refer to an inanimate object.
• Was - transitive verb. Copulative used to indicate that the subject plays the role of the predicate nominal.
• Raining – noun. A fall of rain.
• Fairly - adverb modifier indicating degree. Partly, not fully; somewhat.
• Hard - adverb modifier of manner. With much force or effort.
• The - definite article. Used before a noun modified by a restrictive relative clause, indicating that the noun refers to a single referent defined by the relative clause.
• Team - noun subject of clause. Any group of people involved in the same activity, especially sports or work.
• played - transitive verb of clause. To engage in activities expressly for the purpose of recreation or entertainment.
• Its - possessive pronoun, adjective modifier. The one (or ones) belonging to it.
• Best – superlative adjective modifier. en-superlative of good
• Game - direct object noun. A particular instance of playing a game; match.
• ever - adverb modifier. (informal) As intensifier following an interrogative word.
The diagram is attached