Our league and/or group coordinator randomly draws three wild card holes after everyone has finished to determine the teams net score. If you are over par on the holes selected you get to subtract 3 shots for 9 hole events (6 shots for 18 hole events) from your total score for every stroke that you were over par on those combined holes.  If you are under par on the holes selected you have to add 3 shots for 9 hole events (6 shots for 18 hole events) for every stroke that you were under par on those combined holes. If you are even par on the holes selected then no harm no foul you break even. This gives every one an equal chance of WINNING on the net side. No handicap required.

Canyon Lakes Handicapping System

Three Hole Accumulation / Score Adjustment for 9 Hole Competition
5 Under Par Add 15
4 Under Par Add 12
3 Under Par Add 9
2 Under Par Add 6
1 Under Par Add 3
Even Par Break Even
1 Over Par Subtract 3
2 Over Par Subtract 6
3 Over Par Subtract 9
4 Over Par Subtract 12
5 Over Par Subtract 15
Three Hole Accumulation / Score Adjustment for 18 Hole Competition
5 Under Par Add 30
4 Under Par Add 24
3 Under Par Add 18
2 Under Par Add 12
1 Under Par Add 6
Even Par Break Even
1 Over Par Subtract 6
2 Over Par Subtract 12
3 Over Par Subtract 18
4 Over Par Subtract 24
5 Over Par Subtract 30

For Example: 

In a 9 hole format If a team shoots a score of 36 but is 2 over on the wild card holes they would shoot a net score of 30.

In an 18 hole format if a team shoots a score of 72 but is 2 over on the wild card holes they would shoot a net score of 60.