Nightmare 18: The hardest holes, by number, in the 2016-17 PGA Tour regular season

There's always that one hole you get to on your home course that you dread.

You know the one I'm talking about. It's the one that gets in your head long before you arrive at the tee box. The one that could make or break your round.

Once you get through it, you either breathe a deep sigh of relief, or you're cursing it.

What if you had to play an entire round that encapsulated 18 of those holes?

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That's what we imagined for this piece.

If we were to make a course out of these 18 holes, par would be set at 68 and it would measure 7,628 yards in length. There would be 14 par-4 holes and four par 3s... no par 5s.

Here's a look at the PGA Tour's nightmare 18 from the 2016-17 regular season -- the 18 holes, in order, by number, that played as the most difficult.

No. 1, Augusta National Golf Club, a 445-yard par 4.

Scoring average: 4.462
Eagles: 0
Birdies: 18
Pars: 152
Bogeys: 99
Double bogeys: 16
Other: 7

No. 2, Torrey Pines North Course, a 495-yard par 4.

Scoring average: 4.342
Eagles: 0
Birdies: 5
Pars: 94
Bogeys: 54
Double bogeys: 2
Other: 0

No. 3, TPC Four Seasons Resort, a 528-yard par 4.

Scoring average: 4.337
Eagles: 0
Birdies: 42
Pars: 260
Bogeys: 120
Double bogeys: 37
Other: 1

No. 4, TPC San Antonio - AT&T Oaks, a 481-yard par 4.

Scoring average: 4.331
Eagles: 1
Birdies: 39
Pars: 260
Bogeys: 137
Double bogeys: 20
Other: 5

No. 5, Spyglass Hill GC, a 197-yard par 3.

Scoring average: 3.307
Eagles: 0
Birdies: 13
Pars: 89
Bogeys: 44
Double bogeys: 5
Other: 2

No. 6, Royal Birkdale GC, a 499-yard par 4.

Scoring average: 4.427
Eagles: 0
Birdies: 25
Pars: 245
Bogeys: 173
Double bogeys: 17
Other: 5

No. 7, Monterey Peninsula CC, a 226-yard par 3.

Scoring average: 3.299
Eagles: 0
Birdies: 8
Pars: 98
Bogeys: 42
Double bogeys: 6
Other: 0

No. 8, Club de Golf Chapultepec, a 525-yard par 4.

Scoring average: 4.359
Eagles: 0
Birdies: 24
Pars: 163
Bogeys: 104
Double bogeys: 10
Other: 3

No. 9, Pebble Beach GL, a 466-yard par 4.

Scoring average: 4.305
Eagles: 0
Birdies: 21
Pars: 123
Bogeys: 65
Double bogeys: 10
Other: 1

No. 10, Pebble Beach GL, a 446-yard par 4.

Scoring average: 4.255
Eagles: 0
Birdies: 20
Pars: 135
Bogeys: 55
Double bogeys: 10
Other: 1

No. 11, TPC Potomac at Avenel Farm, a 470-yard par 4.

Scoring average: 4.521
Eagles: 0
Birdies: 23
Pars: 189
Bogeys: 132
Double bogeys: 27
Other: 11

No. 12, Torrey Pines GC (South), a 504-yard par 4.

Scoring average: 4.435
Eagles: 0
Birdies: 12
Pars: 167
Bogeys: 113
Double bogeys: 15
Other: 1

No. 13, Royal Birkdale GC, a 499-yard par 4.

Scoring average: 4.337
Eagles: 0
Birdies: 35
Pars: 271
Bogeys: 132
Double bogeys: 25
Other: 3

No. 14, TPC Sawgrass, a 481-yard par 4.

Scoring average: 4.332
Eagles: 0
Birdies: 28
Pars: 267
Bogeys: 122
Double bogeys: 19
Other: 4

No. 15, Torrey Pines GC (South), a 478-yard par 4.

Scoring average: 4.312
Eagles: 0
Birdies: 21
Pars: 180
Bogeys: 97
Double bogeys: 10
Other: 0

No. 16, Muirfield Village GC, a 201-yard par 3.

Scoring average: 3.367
Eagles: 0
Birdies: 26
Pars: 228
Bogeys: 107
Double bogeys: 25
Other: 4

No. 17, Quail Hollow Club, a 223-yard par 3.

Scoring average: 3.288
Eagles: 0
Birdies: 33
Pars: 295
Bogeys: 100
Double bogeys: 28
Other: 3

No. 18, TPC Sawgrass, a 462-yard par 4.

Scoring average: 4.486
Eagles: 0
Birdies: 37
Pars: 226
Bogeys: 120
Double bogeys: 45
Other: 12