052419 Lundahl 24Hr Challenge Run

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Eighth grade students Jaden Appelhans, left, and Addy Alexander catch a nap during the 24-hour challenge run at Lundahl Middle School on Friday, May 24, 2019 in Crystal Lake. This year, 22 teams consisting of 258 students participated in the 21st year of the annual event. Area lightning forced students and volunteers off the track and field and into the school where some slept when not running.

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Students rest up inside the cafeteria as rain pours down outside during the 24-hour challenge run at Lundahl Middle School on Friday, May 24, 2019 in Crystal Lake. This year, 22 teams consisting of 258 students participated in the 21st year of the annual event. Area lightning forced students and volunteers off the track and field and into the school where some slept when not running.

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Eighth grade student Aaron Koh, 14, front, catches a nap with classmates inside the cafeteria during the 24-hour challenge run at Lundahl Middle School on Friday, May 24, 2019 in Crystal Lake. This year, 22 teams consisting of 258 students participated in the 21st year of the annual event. Area lightning forced students and volunteers off the track and field and into the school where some slept when not running.

hnews_0524_Lundahl_24hrRun

Students run laps around the wet track during the 24-hour challenge run at Lundahl Middle School on Friday, May 24, 2019 in Crystal Lake. This year, 22 teams consisting of 258 students participated in the 21st year of the annual event. Area lightning forced students and volunteers off the track and field and into the school where some slept when not running.