2018/19: two-year-old season

Bivouac began his racing career with a second placing at Randwick, followed by a third placing three months later at the same track. His third start in a race was at Warwick Farm Racecourse in the Listed Lonhro Plate. Starting at odds of $6.50 he won by a length under jockey Blake Shinn. Immediately after the race assistant trainer Darren Beadman said, "Being on his home track he had a big advantage. He is a real little professional, he just gets the job done".^[3]

After finishing unplaced at his next start in the Todman Stakes, Bivouac was listed as the first emergency for the Golden Slipper Stakes, however he failed to gain a start. Two weeks later he started in the Kindergarten Stakes at Group 3 level at the odds of $6. He won the race by 2 lengths with Blake Shinn in the saddle again. After the race Shinn stated, "He's a very exciting horse, he won dominantly today as he did when I won on him at Warwick Farm."^[4]

2019/20: three-year-old season

Bivouac resumed racing as a three-year-old in the Vain Stakes at Caulfield Racecourse. Starting as a $3 favourite he won the race by over 4 lengths.^[5] As a result of his dominant win in the Vain Stakes, his next start he was installed the $1.35 favourite in the San Domenico Stakes but finished in second place.^[6]

Bivouac's next start he was successful in The Run to the Rose Stakes. Two weeks later he contested his first Group 1 race, the Golden Rose Stakes at Rosehill Racecourse. He won under jockey Hugh Bowman as the $2.50 favourite. His trainer James Cummings described watching Bivouac win the Golden Rose as ‘poetry in motion’.^[7]

Bivouac started $1.80 favourite at his next start in the Manikato Stakes at Moonee Valley Racecourse. Starting from barrier 1, the horse drifted back through the field and was blocked for runs throughout the race, eventually finishing in 6th position. Jockey Kerrin McEvoy said after the race, "He was a little bit unlucky. He was three-back the fence and I never really got to let him off the bridle at all".^[8] Some however were critical of McEvoy's ride. Columnist Richard Callander believed that the Manikato Stakes was a major race that got away from McEvoy and made him pose the question "Was Kerrin McEvoy asleep at the wheel on Bivouac?"^[9] Bivouac contested the Coolmore Stud Stakes a week later and was narrowly beaten into second place for jockey Hugh Bowman.

Bivouac was then sent for a three-month spell and returned to racing in the 2020 Oakleigh Plate. After settling in the back half of the field he flashed home late to finish 6th, beaten 2.5 lengths. Next start he contested the Group 1 Newmarket Handicap at Flemington Racecourse. Ridden by jockey Glen Boss, he started at odds of $5.50 and won the race comfortably by 2.5 lengths. Boss said, "It’s amazing when you get on these colts, just going to the barriers, I knew I was a winner, you can just tell when they’re on. He went down to the barriers like he really meant business, every stride he took he had his game face on.”^[10]

On 20 May 2020 Bivouac finished third in the William Reid Stakes, before unplaced runs in the TJ Smith Stakes and All Aged Stakes.

2020/21: four-year-old season

After running placings in The Shorts and The Everest, on both occasions beaten by Classique Legend, Bivouac started at odds of $3.20 in the Group 1 VRC Sprint Classic. Ridden by Glen Boss he won by over 3 lengths, beating the reigning Australian Horse of the Year, Nature Strip.^[11]

Bivouac would not start for another 3 months when resuming on the 13 February 2021 in the Black Caviar Lightning at Flemington over 1,000 metres. Starting the $2.15 favourite he failed to threaten in the finish, eventually being beaten into 5th place by the winner Nature Strip. After two unplaced starts in the Canterbury Stakes and TJ Smith Stakes the horse was retired from racing.