▁late ▁ 1 9 6 0 s , ▁and ▁was ▁transferred ▁to ▁É v ry ▁in ▁the ▁ 1 9 7 0 s . ▁For ▁a ▁period ▁its ▁distance ▁was ▁ 1 , 4 0 0 ▁metres . ▁It ▁was ▁subsequently ▁cont ested ▁over ▁ 1 , 3 0 0 ▁metres ▁( 1 9 8 4 – 8 6 ) ▁and ▁ 1 , 2 0 0 ▁metres ▁( 1 9 8 7 – 9 2 ). ▁It ▁was ▁short ened ▁to ▁ 1 , 1 0 0 ▁metres ▁in ▁ 1 9 9 3 . ▁ ▁The ▁Prix ▁La ▁Fl è che ▁was ▁held ▁at ▁Ch ant illy ▁from ▁ 1 9 9 7 ▁to ▁ 1 9 9 9 , ▁and ▁at ▁Mais ons - L aff itte ▁from ▁ 2 0 0 0 ▁to ▁ 2 0 0 3 . ▁It ▁was ▁switched ▁to ▁Long ch amp ▁and ▁cut ▁to ▁ 1 , 0 0 0 ▁metres ▁in ▁ 2 0 0 4 . ▁It ▁returned ▁to ▁Mais ons - L aff itte ▁in ▁ 2 0 0 9 , ▁and ▁has ▁been ▁run ▁at ▁Ch ant illy ▁again ▁since ▁ 2 0 1 4 . ▁ ▁The ▁leading ▁horses ▁from ▁the ▁race ▁often ▁go ▁on ▁to ▁comp ete ▁in ▁the ▁Prix ▁du ▁Bo is . ▁ ▁Records ▁Le ading ▁j ockey ▁since ▁ 1 9 7 7 ▁( 4 ▁wins ): ▁ ▁Fred dy ▁Head ▁– ▁Ma ▁B iche ▁( 1 9 8 2 ), ▁M inst rel '