Pretend you played Brackenridge yesterday, white tees, and only got 14 holes finished. Here are the calculations:
You’re a 28.3 handicap index. You need to know your course handicap. My golf club has a chart posted on the wall. If Brackenridge doesn’t, use this calculator: https://www.usga.org/content/usga/home-page/course-handicap-calculator.html
The course rating and slope for the white tees for men should be somewhere on the scorecard. If not, look them up here:
National Course Rating Database
Filling in the numbers:
Your course handicap is 28. You get one stroke for every hole, then a second stroke for holes ranked as 1 through 10:
Of these, we only care about 15 through 18 (the holes not played).
Hole15 is hdcp 18, so you get 1 stroke. It’s a par 3. You record a 4 (3+1).
Hole 16 is hdcp 6, so you get 2 strokes. It’s a par 4. You record a 6 (4+2).
Hole 17 is hdcp 8, so you get 2 strokes. Par 4, so you record a 6.
Hole 18 is hdcp 16, so you get 1 stroke. Par 3, so you record a 4.
Somebody can check my math, to make sure I didn’t make a silly error.