A mi hija le encantaría volver al estadio el próximo domingo para ver otro campeonato.

Yes, they both point to the same person, but this is very normal in Spanish.

This pattern is called clitic doubling:

• A mi hija names the person clearly.
• le is the indirect object pronoun that the verb pattern expects.

With verbs like gustar, encantar, interesar, and similar verbs, Spanish very often uses both:

• A Juan le gusta el fútbol.
• A mi hija le encantaría volver...

In English this feels repetitive, but in Spanish it sounds natural.

Because with encantar, the person who feels the emotion is treated as an indirect object, not a direct object.

So:

• le = to her
• la = her as a direct object

Spanish treats this like:

• Returning to the stadium would be delightful to her

That is why le is correct:

• A mi hija le encantaría...

This is the same pattern as gustar:

• A ella le gusta...

Encantaría is the conditional form of encantar.

Here it means something like:

• would love
• would really like

Compare:

• A mi hija le encanta volver al estadio = my daughter loves going back to the stadium
• A mi hija le encantará volver al estadio = my daughter will love going back to the stadium
• A mi hija le encantaría volver al estadio = my daughter would love to go back to the stadium

So the conditional makes it sound less like a fact and more like a desire, possibility, or hypothetical situation.

The subject is not mi hija.

The subject is the whole action:

• volver al estadio el próximo domingo para ver otro campeonato

With verbs like gustar/encantar, the thing that pleases or would please someone is the grammatical subject.

So the structure is basically:

• [Going back to the stadium next Sunday to see another championship] would delight her.

Because that whole action is treated as one unit, the verb is in third person singular:

• encantaría

Here it means to return/go back to the stadium.

That is because:

• volver = to return / go back
• al estadio = to the stadium

A common source of confusion is volver a + infinitive, which means to do something again:

• volver a ver = to see again
• volver a jugar = to play again

But in your sentence, it is:

• volver al estadio

That is volver + place, not volver a + infinitive.

Because a + el contracts to al in Spanish.

So:

• a + el estadio → al estadio

This contraction is required in normal Spanish.

The same kind of thing happens with:

• de + el → del

Examples:

• Voy al cine
• Vengo del trabajo

Spanish often uses the definite article with days of the week:

• el domingo
• el lunes
• los martes

So el próximo domingo means next Sunday.

Other common ways to say this are:

• el domingo que viene
• el domingo próximo (less common in everyday speech)

For a learner, el próximo domingo is a very standard and useful pattern.

Para ver expresses purpose:

• to see
• in order to see

So the idea is that she would love to go back to the stadium for the purpose of seeing another championship.

In Spanish, para + infinitive is the normal way to express purpose when the subject stays the same:

• Fue al estadio para ver el partido
• Estudia para aprender

Because otro normally does not use un/una before it.

So:

• otro campeonato = another championship
• otra vez = another time / again
• otro día = another day

Spanish normally says:

• Quiero otro café not
• Quiero un otro café

So otro campeonato is the correct structure.

Yes, in many cases that is a good way to think about it.

Compare:

• A mi hija le gustaría volver al estadio = my daughter would like to go back to the stadium
• A mi hija le encantaría volver al estadio = my daughter would love to go back to the stadium

So encantar usually expresses a stronger feeling than gustar.

The grammar pattern is the same:

• A alguien le gusta...
• A alguien le encanta...

Yes, but the current order is very natural.

The sentence begins with:

• A mi hija

This puts the focus early on who would love it.

You could also hear:

• Le encantaría a mi hija volver al estadio...

But that sounds less neutral and is usually used in a more marked context, for example for contrast or emphasis.

For everyday use, A mi hija le encantaría... is an excellent model.

Because le can mean:

• to him
• to her
• to you (formal)

So A mi hija removes any ambiguity and makes it completely clear who le refers to.

Spanish often uses the full phrase even when the pronoun is present:

• A Pedro le gusta cocinar
• A nosotros nos interesa eso
• A mi hija le encantaría volver...

So the noun phrase is there for clarity and/or emphasis, while the pronoun is still part of the normal verb pattern.

Yes.

Campeonato usually refers to a championship, competition, or tournament, not just one individual game.

Depending on context, it could refer to:

• a championship event
• a tournament
• a league competition
• sometimes, less precisely, the sporting event being attended

So if a learner expects it to mean exactly one match, that may be too narrow. The context decides how specific it is.