Jeśli dziś będzie remis, jutro odbędzie się jeszcze jeden mecz.

Jeśli means if.

It is very close in meaning to jeżeli. In most sentences, they are interchangeable:

• Jeśli dziś będzie remis...
• Jeżeli dziś będzie remis...

Both mean the same thing. Jeśli is very common in everyday Polish, while jeżeli can sound a little more formal or careful.

Because Jeśli dziś będzie remis is a subordinate clause introduced by jeśli.

In Polish, clauses like if, when, because, etc. are normally separated by a comma from the main clause:

• Jeśli dziś będzie remis, jutro odbędzie się jeszcze jeden mecz.

This is standard Polish punctuation.

Yes. Dziś and dzisiaj both mean today.

The difference is mostly stylistic:

• dziś is a bit shorter and slightly more compact
• dzisiaj is a bit fuller and very common in speech

In this sentence, either would work:

• Jeśli dziś będzie remis...
• Jeśli dzisiaj będzie remis...

Because the sentence is talking about a possible future situation.

• jest remis = it is a draw / the score is tied now
• będzie remis = it will be a draw / the score will be tied

Here the meaning is conditional and future-oriented: if today there ends up being a draw...

Będzie is the future tense of być (to be).

Remis means a draw or a tie in sports.

So będzie remis literally means something like:

• there will be a draw
• the game will end in a tie

It is the normal sports word for a tied result.

Odbędzie się means will take place or will be held.

It comes from the verb odbyć się, which is used for events such as:

• matches
• meetings
• concerts
• conferences

So:

• mecz odbędzie się jutro = the match will take place tomorrow

In your sentence, jutro odbędzie się jeszcze jeden mecz means tomorrow one more match will take place.

Because odbyć się is a perfective verb, and Polish often uses a perfective verb when talking about a single completed event in the future.

• odbędzie się = a single event will take place
• będzie się odbywać = an event will be taking place / will go on, which sounds more process-focused

Since this sentence is about one additional match happening once, odbędzie się is the natural choice.

Here jeszcze means one more / an additional.

So:

• jeszcze jeden mecz = one more match
• another match

Yes, jeszcze can also mean still in other contexts, but not here. In this phrase, jeszcze jeden is a very common pattern meaning one more.

Examples:

• jeszcze jedna kawa = one more coffee
• jeszcze jeden dzień = one more day

Because jeszcze jeden mecz is the subject of the clause.

The structure is basically:

• one more match will take place tomorrow

So mecz stays in the nominative singular, its basic dictionary form.

That can feel a little unusual to English speakers, because in English we may focus on the verb first, but in Polish the event itself is the grammatical subject:

• jeszcze jeden mecz = one more match
• odbędzie się = will take place

Yes, Polish word order is quite flexible.

The original sentence is natural:

• Jeśli dziś będzie remis, jutro odbędzie się jeszcze jeden mecz.

But you could also hear variations such as:

• Jeśli dziś będzie remis, jeszcze jeden mecz odbędzie się jutro.
• Jutro odbędzie się jeszcze jeden mecz, jeśli dziś będzie remis.

The basic meaning stays the same, but the emphasis shifts slightly. Polish often moves words around to highlight time, condition, or the most important new information.

Yes. You can say:

• Jeśli dziś będzie remis, to jutro odbędzie się jeszcze jeden mecz.

The to is optional here. It helps mark the result more clearly, a bit like then in English:

• If there is a draw today, then one more match will take place tomorrow.

Without to, the sentence is still completely correct and natural.