The lowest nine-hole first (front) or second (nine) ever shot in the Masters Tournament is 29, shot on the second nine twice.
Mark Calcavecchia was the first to shoot 29 on the second nine at Augusta National Golf Club in the Masters, doing so in the 1992 final round. The second-nine 29 brought Calcavecchia up to 3-under 285 for the championship and into a tie for 32nd place.
Six years later, David Toms shot 29 on the second nine in the final round of the 1998 Masters. The 29 capped off a final-round 64 that left him in a tie for sixth with 58-year-old Jack Nicklaus.
The lowest nine holes on the first nine at Augusta National Golf Club is 30, and it's been done now six times in Masters history. Tony Finau was the most recent player to shoot 30 for the first nine, doing so in the third round of the 2019 Masters.
Before Finau, Gary Woodland had most recently shot a first-nine 30 in the third round in 2014.
Others to shoot a first-nine 30 at Augusta National in the Masters Tournament include:
- Johnny Miller, 1975, third round
- Greg Norman, 1988, final round
- K.J. Choi, 2004, second round
- Phil Mickelson, 2009, final round
There lowest round ever shot in the Masters is 63, done two times, and neither included the lowest nine-hole totals in Augusta National history.