What a great pattern! Another worthy of repeating!!!

Cuff: 12 rounds = 1.375”

Leg: 42 rounds (1 chart + rounds 1-6) = 5.5”, end round 6

Heel Gusset: as written, 32 rounds, begin round 7 of chart, end round 2 of chart

Heel Turn: as written, end round 2 chart

Foot: 51 rounds = 7.5”, begin round 4 of chart, end round 18 of chart

Toe: as written

Minimum Requirements:

The minimum size for competition is M (64 sts).
Ribbing - as written
Leg - 42 rounds (1 full chart repeat + chart rows 1-6)
Heel gusset - as written (32 rounds for size M / 36 rounds for size L)
Foot - Foot set up + 51 rounds for size M / 47 rounds for size L
Toe - as written

ERRATA:
Minimum Requirements:
Foot - Foot set up + 50 rounds for size M / 46 rounds for size L

size M I knit 16 gusset stitches to M1, 33 stitches across the instep, M2, 16 gusset stitches, then 17 stitches across the sole, ssk, k1 and turn