Топ-спин закончил розыгрыш.

Топ-спин is a borrowed sports term, especially common in tennis and table tennis. It means topspin, a shot with forward spin.

It is written with a hyphen because that is the standard Russian spelling for this borrowed compound term: топ-спин.

In Russian, it is treated as a masculine noun, so it can act as the subject of the sentence, as it does here.

In the past tense, Russian verbs agree with the subject in gender and number.

Here, the subject is топ-спин, which is treated as a masculine singular noun. So the verb is also masculine singular:

• топ-спин закончил

Compare:

• удар закончил — masculine
• подача закончила — feminine
• движение закончило — neuter
• игроки закончили — plural

Розыгрыш is in the accusative singular, because it is the direct object of the verb закончил.

The verb закончить means to finish / to end something, so it takes a direct object.

For inanimate masculine nouns in Russian, the accusative singular looks exactly like the nominative singular. So:

• nominative: розыгрыш
• accusative: розыгрыш

That is why the form does not change.

Both are possible, but they mean slightly different things.

• Топ-спин закончил розыгрыш = The topspin ended the rally.
  This makes топ-спин the thing that caused the rally to end.

• Розыгрыш закончился = The rally ended.
  This simply states that the rally came to an end, without saying what caused it.

So закончил is a transitive verb here: something ended something else.

Закончил is the past tense of the perfective verb закончить. Perfective verbs present an action as completed.

That fits this sentence well, because the idea is that the topspin finished the rally as a completed event.

If you used заканчивал, that would be imperfective and would usually suggest:

• repeated action,
• ongoing action,
• or focus on the process rather than the completed result.

So here закончил is the natural choice.

In this sports context, розыгрыш means something like rally, exchange, or point sequence — the stretch of play after the ball is in play.

This word can be confusing because in other contexts розыгрыш can mean other things, such as:

• a prize draw / raffle
• a prank

So context matters a lot. In a tennis or table tennis sentence, розыгрыш is understood as the rally.

Russian does not have articles like English a and the.

So Топ-спин закончил розыгрыш could be understood in English as:

• The topspin ended the rally
• A topspin ended the rally

Which one is best depends on context.

Russian usually shows definiteness through context, word order, and shared knowledge, not through articles.

The word order here is the most neutral one:

• Топ-спин — subject
• закончил — verb
• розыгрыш — object

So this is a straightforward subject–verb–object sentence.

Russian word order is more flexible than English, but changing it usually changes the emphasis. For example:

• Топ-спин закончил розыгрыш — neutral
• Розыгрыш закончил топ-спин — marked, with stronger emphasis on розыгрыш or a more literary/commentary-like feel

So the given order is the most natural if you are simply stating the event.

Yes, it can decline. Although it is a borrowed word, Russian usually treats топ-спин as a masculine noun and declines it in normal usage.

For example:

• nominative: топ-спин
• genitive: топ-спина
• dative: топ-спину
• accusative: топ-спин
• instrumental: топ-спином
• prepositional: о топ-спине

In your sentence, it is in the nominative, because it is the subject.

The usual stress is:

• то́п-спин зако́нчил ро́зыгрыш

A rough pronunciation guide:

• то́п-спин — like English top-spin, but with Russian sounds
• зако́нчил — stress on ко
• ро́зыгрыш — stress on the first syllable

For an English speaker, the hardest part is often ы in ро́зыгрыш, since that vowel does not exist in standard English.