Mám z výsledku radost.

This is a very common Czech pattern: mít radost z + genitive = to be happy/pleased about something.

So:

• Mám radost. = I’m happy / I’m pleased.
• Mám z výsledku radost. = I’m happy about the result.

Czech often expresses feelings with mít (to have), where English might use to be.

A closely related alternative is:

• Jsem rád / ráda z výsledku. = I’m glad about the result.

Both are natural, but mám radost is a very standard and common expression.

Because the preposition z requires the genitive case.

The dictionary form is:

• výsledek = result

But after z, it changes to the genitive singular:

• z výsledku = from / about the result

So in this sentence:

• Mám radost z výsledku.
• literally: I have joy from the result
• natural English: I’m happy about the result

This is one of the key things to learn in Czech: prepositions often control a specific case.

Literally, yes, z often means from or out of. But in this expression it is best understood more naturally as about or because of.

So:

• radost z výsledku = joy from the result
• natural English: happiness about the result

This usage is very common with nouns expressing emotions or reactions:

• mám radost z dárku = I’m happy about the gift
• mám strach z psa = I’m afraid of the dog
• mám obavy z testu = I’m worried about the test

So yes, z literally means from, but in many emotional expressions it corresponds to English about, of, or because of.

In this sentence, radost is the direct object of mám, so it stays in the accusative.

The useful thing here is that radost is a feminine noun whose nominative and accusative singular forms are the same:

• nominative: radost
• accusative: radost

So although it may look unchanged, it is still functioning as the object of the verb.

Structure:

• Mám = I have
• radost = joy / happiness (object)
• z výsledku = about the result

Yes, you can, and it is natural.

Compare:

• Mám z výsledku radost.
• Jsem rád z výsledku. (male speaker)
• Jsem ráda z výsledku. (female speaker)

These are very close in meaning. A rough difference is:

• mám radost sounds a little like I feel joy / I’m pleased
• jsem rád/ráda sounds like I’m glad

In many situations, either works.

One important difference:

• rád changes according to the speaker’s gender:
  • rád for a male speaker
  • ráda for a female speaker
• mám radost does not change for gender

That makes mám radost especially handy for learners.

Because Czech has no articles like English a/an/the.

So:

• výsledek can mean a result or the result
• z výsledku can mean about a result or about the result

The exact meaning depends on context.

In your sentence, the context probably makes it clear that a specific result is meant, so English translates it as the result.

Yes. Czech word order is flexible, and the sentence can be rearranged for emphasis.

The neutral order is:

• Mám z výsledku radost.

Other possible orders include:

• Z výsledku mám radost.
• Radost mám z výsledku.

These do not completely change the meaning, but they shift emphasis:

• Z výsledku mám radost. emphasizes the result
• Radost mám z výsledku. is more marked and contrastive, like It’s the result that I’m happy about

For everyday use, Mám z výsledku radost. is the safest and most natural basic version.

Yes.

• Mám radost. = I’m happy / I’m pleased.

This means the same general feeling, but it does not say what you are happy about.

Adding z výsledku tells us the cause or source of the happiness:

• Mám radost z výsledku. = I’m happy about the result.

So the longer sentence is simply more specific.

It is genitive singular.

The noun is:

• nominative singular: výsledek

After z, it becomes:

• genitive singular: výsledku

A useful mini-paradigm:

• výsledek = nominative
• bez výsledku = without a result
• z výsledku = about/from the result

So if you know that z takes the genitive, výsledku makes sense.

Yes, výsledek is a masculine inanimate noun.

That matters because masculine nouns often change in specific ways depending on case.

Here:

• nominative singular: výsledek
• genitive singular: výsledku

You do not need to know the full declension immediately, but it helps to remember the dictionary form and the form after z.

A rough English-friendly guide:

• Mám ≈ maam (long á)
• z ≈ z
• výsledku ≈ VEE-sled-koo
• radost ≈ RAH-dost

A few pronunciation notes:

• á is long: mám
• ý is also long: vý-
• Czech r is trilled or tapped
• Stress is usually on the first syllable of each word:
  • MÁM
  • VÝ-sledku
  • RA-dost

So the rhythm is roughly:

MÁM z VÝ-sledku RA-dost.

It is neutral and very natural.

You could use it:

• in conversation
• in writing
• in everyday speech
• in fairly formal contexts too

It is not slang, and it is not especially stiff. It is just a normal standard Czech sentence.

Here are some very useful patterns:

• Mám radost z dárku. = I’m happy about the gift.
• Mám radost z práce. = I’m happy about the work.
• Mám radost z dětí. = I’m happy about the children.
• Mám radost z toho, že jsi tady. = I’m happy that you are here.

This lets you reuse the structure:

Mám radost z + genitive

It is one of the most useful expressions for talking about positive feelings in Czech.