Uczestnik zdobędzie punkt, a ranking się zmieni.

Zdobędzie is the future form of the perfective verb zdobyć.

In Polish, aspect matters a lot:

• zdobywać = imperfective, focusing on the process or repetition
• zdobyć = perfective, focusing on reaching the result

So:

• zdobywa punkt = is scoring / scores a point in a general or ongoing sense
• będzie zdobywać punkt = will be scoring / will try to gain a point, more process-focused
• zdobędzie punkt = will score / will gain a point, with emphasis on the completed result

Here the sentence is about a completed future event, so zdobędzie is the natural choice.

Because punkt is the direct object of zdobędzie, so it is in the accusative case.

However, punkt is a masculine inanimate noun, and in the singular its accusative form is the same as its nominative form:

• nominative: punkt
• accusative: punkt

So the form does not change.

This is very common with masculine inanimate nouns in Polish.

Yes, uczestnik is grammatically masculine.

It means participant. Depending on context, it can mean:

• a male participant specifically
• a generic participant, especially in formal or neutral statements

If you specifically mean a female participant, Polish often uses:

• uczestniczka = female participant

So this sentence either refers to a male participant or uses the masculine form generically.

Both a and i can often translate as and, but they are not identical.

• i usually simply joins things together
• a often links two clauses with a slight sense of contrast, development, or separate but related information

In this sentence:

• Uczestnik zdobędzie punkt, a ranking się zmieni.

a suggests something like:

• and then
• and as a result
• while at the same time
• and consequently

It sounds very natural here because the two events are connected, but not just listed mechanically.

Because in Polish, clauses joined by a are normally separated by a comma.

So:

• Uczestnik zdobędzie punkt, a ranking się zmieni.

This is standard Polish punctuation.
English often omits commas in similar places, so this is something English speakers need to get used to.

Here zmienić się means to change in the sense of become different.

This is important:

• zmienić coś = to change something
• zmienić się = to change, to become changed

So:

• Ranking się zmieni = The ranking will change

Without się, the verb would usually need an object:

• Ktoś zmieni ranking = Someone will change the ranking

With się, the ranking itself undergoes the change.

Yes. Ranking is a normal Polish word, although it is a borrowing from English.

In modern Polish it is commonly used for:

• rankings
• standings
• league tables
• ordered lists of results

It behaves like a masculine noun:

• ten ranking
• ranking się zmieni
• w rankingu = in the ranking

So even though it looks English, it functions as an ordinary Polish noun.

It is in the nominative case because it is the subject of the second clause:

• ranking się zmieni = the ranking will change

The ranking is the thing that changes, so it is the subject, and the subject is normally in the nominative.

Not explicitly.

The sentence literally gives two future events:

• The participant will score a point
• the ranking will change

Because the ideas are logically connected, English may naturally read it almost like a cause-and-effect statement. But Polish does not use an explicit conditional word here.

If you wanted to make the condition clear, you would say something like:

• Jeśli uczestnik zdobędzie punkt, ranking się zmieni.
  = If the participant scores a point, the ranking will change.

So the original sentence suggests connection, but it is not formally a conditional sentence.

Yes. Polish word order is more flexible than English word order.

The basic version here is neutral:

• Uczestnik zdobędzie punkt, a ranking się zmieni.

But other orders are possible for emphasis, for example:

• Punkt zdobędzie uczestnik, a ranking się zmieni.
• Ranking się zmieni, a uczestnik zdobędzie punkt.

These versions change the emphasis or sound more marked. The original sentence is the most neutral and natural if you are just stating the facts.

Yes, but the nuance is different.

• zdobędzie punkt suggests earn / score / gain a point
• otrzyma punkt suggests receive a point

So:

• zdobędzie punkt sounds more natural in competition, games, quizzes, or rankings, where someone actively earns points
• otrzyma punkt can work, but may sound slightly more administrative or passive

In most ranking or scoring contexts, zdobędzie punkt is the better choice.