Before high school, Golz played PONY League baseball.[1]
Oak Park and River Forest High School had been producing elite pitchers for nearly four decades before Golz arrived.[2] As a sophomore, Golz joined a pitching staff that had just lost two arms to NCAA Division I baseball and a third who opted not to sign with the Cleveland Indians after reaching the elite eight round of the 2005 Illinois High School Association (IHSA) state playoffs. They had tallied 13 shutouts as a staff (9th in IHSA history at the time).[3] A few weeks into his sophomore year as a left-handed pitcher in 2006, Golz was talked about as if he was a measuring stick across the region.[4] That year, he tallied 50 strikeouts in 40 innings pitched.[5] He earned a win in the 2006 IHSA Sectional round with seven strikeouts in 4 innings against Roberto Clemente Community Academy.[6]
Golz was a fastball pitcher.[7] He also has an effective curveball and changeup.[2] As a junior for Oak Park and River Forest High School in 2007, Golz was a pitcher, first baseman and outfielder. He hit .364 and had a 1.77 earned run average with a 9–1 record, according to the Chicago Tribune.[8][9] According to the Franklin Park Herald-Journal, Golz had a 1.98 ERA, allowing 30 hits and 21 walks vs. 63 strikeouts in 56 1/3 innings as a junior.[10] They were eliminated in the 2007 IHSA Class AA supersectionals.[8] The loss to New Trier High School was Golz' only loss of the season and ended a 20-game win streak for Oak Park. 34–3 New Trier roughed up previously undefeated Golz for a 4-run sixth inning after tying the score at 5–5 with a run in the fifth.[11]
After scoring 50 career goals for the team,[8] including 16 as a 4th-year starter and senior,[2] Golz was named as a 2007 2nd team All-State soccer forward honoree as a senior by the Chicago Tribune.[12] His 50 career goals surpassed the previous school record of 37 by a significant margin.[2] 9 of his 16 senior-season goals came on headers.[2]
As a 6 ft 1 in (1.85 m) 200-pound (90.7 kg) senior,[2] In the June 2 IHSA supersectional game Golz had the go-ahead run batted in on a seventh inning (IHSA games are seven inning contests) single to break a 2–2 tie with Carl Sandburg High School.[13] Golz was 4–4 at the plate.[14] Golz entered the June 6, 2008, IHSA Class 4A semifinals as a starting pitcher with a 7–1 record and a 2.30 E.R.A and a .444 batting average with 47 run batted ins.[8] In the IHSA state 11–1 semifinal victory over Wheaton North, he pitched 5 innings and struck out 8 while giving up one run on three hits to earn the win.[15] In the championship game Golz scored the first run of the game in a 3–2 loss to Prairie Ridge High School.[16] He earned 2008 Chicago Tribune All-state special mention recognition in baseball.[17] The Chicago Tribune ranked Oak Park who finished with a 29–10–1 record second in the state (all-class) following the season.[18] Golz committed to the United States Air Force Academy where the straight A's student-athlete could continue his two-sport activities with Air Force baseball and Air Force soccer.[8] Golz was a co-valedictorian in high school.[2]