Black Diamond Series Mainline 5K
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Black Diamond Series - Mainline 5k
The Mainline 5k is a 3.1 mile running race held at Montage Mountain, 1000 Montage Mountain Road, Moosic, PA 18507, on June 28, 2026. It is the first of two races in the Black Diamond Running Series; the second race is an 8k on July 26, 2026. Runners may enter either race independently; there is no requirement to register for both events.
Registration opens April 13, 2026 and closes June 25, 2026. The listed registration fee is $35.00 and day-of registration is $45.00. All registered participants receive free admission to the Montage Mountain Waterpark after the race, listed at a $34.99 value, and may purchase up to four additional waterpark tickets for family members at $15 each.
Prize money is awarded to top finishers in male and female divisions and to masters competitors aged 40 and older. Cash awards for overall male and female finishers are $300 for first, $200 for second, $100 for third, $75 for fourth, and $50 for fifth. Male Masters and Female Masters (40+) each receive $100. Visit the organization's website for the most recent information.
