noun
back straight; backstretch
In motorsports or track cycling, the straight section of a circuit opposite the main straight.
そのドライバーはバックストレートで最高速を記録した。
The driver recorded the top speed on the back straight.
Variant with interpunct; less common but still seen.
Refers to the main straight (home straight) where the start/finish line is located, while バックストレート is the opposite straight.
Loanword from English 'back straight'.