Ο νικητής προηγήθηκε και κέρδισε έναν πόντο.

Ο is the definite article meaning the.
Here it is masculine, singular, nominative, because νικητής is the subject of the sentence.

So:

• ο νικητής = the winner

The noun νικητής is also masculine singular nominative here.

Νικητής means winner.

It is related to the root νικ-, which has to do with victory or winning. For example:

• νίκη = victory
• νικητής = winner

So if you know one of these words, the others become easier to recognize.

The dictionary form is προηγούμαι.

In this sentence, προηγήθηκε is the aorist form, so it means something like:

• went ahead
• took the lead
• moved in front

Depending on context, προηγούμαι can also mean come before / precede, but here the sports/game meaning take the lead fits naturally.

That is a very common learner question.

Προηγήθηκε has an ending that looks like a passive/aorist passive form, but the verb προηγούμαι is one of those Greek verbs that often appears in middle/passive-looking forms while having an active meaning.

So even though προηγήθηκε looks passive in form, here it means:

• he/she/it went ahead
• he/she/it took the lead

It does not mean was led here.

Both are in the aorist, which is the normal Greek tense for a completed past action.

So the sentence presents two finished events:

1. προηγήθηκε = took the lead / went ahead
2. κέρδισε = won

In English, this is often translated with the simple past.

The dictionary form is κερδίζω, meaning to win, to gain, or sometimes to earn.

So:

• κέρδισε = won
• κερδίζω = I win / to win

In this sentence, it takes a direct object:

• κέρδισε έναν πόντο = won a point

Because πόντο is the direct object of κέρδισε, so it has to be in the accusative case.

• nominative: ένας πόντος = a point
• accusative: έναν πόντο = a point as an object

So after won, Greek uses the accusative:

• κέρδισε έναν πόντο

Also, the noun πόντος is masculine, so the article must match it.

For a masculine noun in the accusative singular, the form is έναν.

You may also notice that Greek sometimes drops the final -ν in words like τον, την, έναν, depending on the next sound. But before certain consonants, including π, the -ν is kept.

Since πόντο starts with π, έναν πόντο is the expected form.

Because πόντο is in the accusative singular, not the nominative.

The dictionary form is:

• ο πόντος = the point

But as the object of the verb, it becomes:

• τον πόντο
• έναν πόντο

This is a standard masculine noun pattern in Greek.

Because Greek does not need to repeat the subject when it is already clear.

In English, you might say:

• The winner took the lead and won a point.

Greek does the same thing:

• Ο νικητής προηγήθηκε και κέρδισε έναν πόντο.

After και, the subject is still understood to be ο νικητής.

No, Greek word order is more flexible than English, because case endings show what each word is doing.

The sentence as written is neutral and natural:

• Ο νικητής προηγήθηκε και κέρδισε έναν πόντο.

But other orders are possible for emphasis, for example:

• Προηγήθηκε ο νικητής και κέρδισε έναν πόντο.
• Έναν πόντο κέρδισε ο νικητής.

These versions can sound more marked or emphasize different parts, but the original order is the most straightforward for a learner.