main tournament; final rounds; finals
Refers to the main competition after preliminary rounds or qualifying stages. Used in sports, contests, and tournaments.
彼は予選を勝ち抜いて本戦に進んだ。
He won through the qualifiers and advanced to the main tournament.
本戦は来週の土曜日から始まります。
The finals start next Saturday.
決勝 specifically means the final match or championship round, whereas 本戦 can refer to the entire main tournament bracket.
予選 is the preliminary qualifying round, while 本選 is the main event or final stage that follows it.
前哨戦 refers to a warm-up or preliminary match, whereas 本戦 is the main tournament or contest itself.
Standard kanji form for the main tournament or final rounds.
Alternate kanji form; 本戦 is more common.
Compound of 本 (main, real) and 戦 (battle, match). The alternate form 本選 uses 選 (selection).