PRESENTED BY:
Pipe Fiction Oilfield Supply

Derek Iwanicka

QUALICO

Last 7 League Scores

(as of Wednesday, May 20, 2026)
Date Course Tee Course Rating Slope Score Diff
Aug 21, 2024 18 Holes Deck III 71.3 129 89* 13.9
Aug 14, 2024 18 Holes Deck III 71.3 129 98 21.5
Aug 7, 2024 18 Holes Deck III 71.3 129 94 18.1
Jul 24, 2024 18 Holes Deck III 71.3 129 87* 12.3
Jul 17, 2024 18 Holes Deck III 71.3 129 91* 15.6
Jul 10, 2024 18 Holes Deck III 71.3 129 93* 17.3
Jun 26, 2024 18 Holes Deck III 71.3 129 102 24.8

League Handicap Calculation * Differential for Each Round = (Gross Score - Course Rating) x (113 / Slope)

League handicaps are calculated using a player's 4 BEST league scores out of their last 7 league scores.
4 Lowest League Differentials: 13.9, 12.3, 15.6, 17.3
Lowest League Differentials Added Together : 13.9 + 12.3 + 15.6 + 17.3 = 59.1 Divide by 4 = 14.78

Derek Iwanicka's League Handicap Factor prior to this round was 14.8


Handicap Calculation for this round: Factor x Slope/113 + (Rating of Tee Used - par of course) = League Handicap (Rounded to a Whole Number)
Derek Iwanicka played Mickelson National - 18 Holes from the Deck III tees (Slope: 129 , Rating: 71.3)

May 20, 2026 Round Handicap: 14.8 x (129/113) + (71.3 - 72) = 16