Some of the high school pitchers, including Kerry Wood, who pitched heavy loads in high school
Roger Clemens, Baseball Wiki
Prospect Retrospective: Tim Lincecum, RHP, San Francisco Giants - Minor League Ball
Chicago Cubs: Kerry Wood's 20 strikeout game is MLB's greatest outing
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The Cubs have two All-Star pitchers. That's a fairly rare event. - Bleed Cubbie Blue
Greatest individual pitching performances in MLB history
MLB Roundup
Kerry Wood – Society for American Baseball Research
Heretic, Rebel, a Thing to Flout: Kid K's Very Good Day
The Top 100 Cubs Of All Time - #59 Kerry Wood - Bleed Cubbie Blue
What's The Ideal Body Type For A High School Righthander Anyway? — College Baseball, MLB Draft, Prospects - Baseball America