Champion: Cameron Smith (–20, 268)

Final score: 67‑64‑73‑64 = 268 (–20), winning by one stroke over Cameron Young and two over Rory McIlroy

Sunday charge: Bogey‑free 64 featuring eight-under, including five consecutive birdies from holes 10–14 and another birdie on 18, the lowest final round ever at St Andrews by a champion 

Records set:

Matched the lowest final score to par in Open history (–20), tying Henrik Stenson (2016) 

First player to post two rounds of 64 or better in a single Open 

First Australian to win the Open since Greg Norman in 1993

Key moments: Impressive save from the “Road Hole” bunker on 17 and a clutch birdie on 18 to seal victory 

Runner‑up: Cameron Young (–19, 269)

Final score: 64‑69‑71‑65 = 269 (–19), finishing one stroke behind Smith 

Closing surge: Eagle on the 18th with a 15‑footer nearly forced a playoff 

Remarkable achievement: Stellar performance in his Open major debut.

Third place: Rory McIlroy (–18, 270)

Final score: 66‑68‑66‑70 = 270 (–18), capturing third

Sunday struggle: Started with a four-stroke lead but managed only a 70 with key missed birdie chance ending two strokes behind Smith 

Summary:
Cameron Smith staged a sensational comeback in the final round, delivering an eight-under 64 with five straight birdies. He claimed the Claret Jug by one shot at 20-under, joining the record books with the lowest Open score relative to par.
Cameron Young held firm at –19, his eagle on 18 nearly forcing a playoff.
Rory McIlroy, despite leading into the back nine, faltered with a final‑round 70 and putting struggles, finishing two strokes behind Smith.