Meaning of 終盤 in Japanese

Definition of 終盤

しゅうばん(shuuban) 【終盤】

(n) endgame; final stage
これが原因でタイムを大きくロスしてしまい、もしかしたら、このアクシデントがなかったら、レース終盤はもっと良くなっていただろう。
Due to this a lot of time was lost, it's possible that if it wasn't for this accident the final stage of the race would have been better.

しゅうばんせん(shuubansen) 【終盤戦】

Due to this a lot of time was lost, it's possible that if it wasn't for this accident the final stage of the race would have been better.