Name: Cranky Monkey Mountain Bike Race
Start: 2026-08-30
End: 2026-08-30
Location: Rosaryville, MD

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About

Cranky Monkey Mountain Bike Race

Get ready to tackle the twisting singletrack at Rosaryville State Park, where four distance options let you choose your own adventure through Maryland's technical trail system. The Expert course sends you on two complete loops through the Perimeter and Tilly Trails, building serious elevation along the way.

Location: Rosaryville State Park, Upper Marlboro, MD
Format: Cross-country mountain bike race
Distance options: 5.6, 9, 20, or 30 miles
Elevation gain: 400 to 2,200 feet depending on distance
Course: Perimeter Trail and Tilly Trail system
Start/finish: Day use pavilions with wave starts by category

Location

Starting Point

Rosaryville, MD

Route

30 mi

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Categories

74 categories available

Beginner (6 Miles)

Beginner - Female 10 and Under

12:00 PM

$35

Beginner - Female 11-12

12:00 PM

$35

Beginner - Female 13-14

1:00 PM

$35

Beginner - Female 15-19

1:00 PM

$35

Beginner - Male 10 and Under

12:00 PM

$35

Beginner - Male 11-12

12:00 PM

$35

Beginner - Male 13-14

1:00 PM

$35

Beginner - Male 15-19

1:00 PM

$35

Beginner - Female Open

12:00 PM

$35

Beginner - Male Open

12:00 PM

$35

Beginner - Non-Binary

12:00 PM

$35

Beginner - Female Masters (40+)

12:00 PM

$35

Beginner - Male Masters (40+)

12:00 PM

$35

Beginner - Female Masters (50+)

12:00 PM

$35

Beginner - Male Masters (50+)

12:00 PM

$35

Beginner - Female Masters (60+)

12:00 PM

$35

Beginner - Male Masters (60+)

12:00 PM

$35

Beginner - Female Masters (70+)

12:00 PM

$35

Beginner - Male Masters (70+)

12:00 PM

$35

Beginner - Female Singlespeed

12:00 PM

$35

Beginner - Male Singlespeed

12:00 PM

$35

Beginner - Clydesdale (200lb+)

12:00 PM

$35

Beginner - E-Bike

class 1 e-bikes only

12:00 PM

$35

Base (9 Miles)

Base - Female 12 and Under

1:00 PM

$35

Base - Female 13-14

1:00 PM

$35

Base - Female 15-19

1:00 PM

$35

Base - Male 12 and Under

1:00 PM

$35

Base - Male 13-14

1:00 PM

$35

Base - Male 15-19

1:00 PM

$35

Base - Female Open

1:00 PM

$45

$50 after Jul 31

Base - Male Open

1:00 PM

$45

$50 after Jul 31

Base - Non-Binary

1:00 PM

$45

$50 after Jul 31

Base - Female Masters (40+)

1:00 PM

$45

$50 after Jul 31

Base - Male Masters (40+)

1:00 PM

$45

$50 after Jul 31

Base - Female Masters (50+)

1:00 PM

$45

$50 after Jul 31

Base - Male Masters (50+)

1:00 PM

$45

$50 after Jul 31

Base - Female Masters (60+)

1:00 PM

$45

$50 after Jul 31

Base - Male Masters (60+)

1:00 PM

$45

$50 after Jul 31

Base - Female Masters (70+)

1:00 PM

$45

$50 after Jul 31

Base - Male Masters (70+)

1:00 PM

$45

$50 after Jul 31

Base - Female Singlespeed

1:00 PM

$45

$50 after Jul 31

Base - Male Singlespeed

1:00 PM

$45

$50 after Jul 31

Base - Clydesdale (200lb+)

1:00 PM

$45

$50 after Jul 31

Base - E-Bike

class 1 e-bikes only

1:00 PM

$45

$50 after Jul 31

Sport (20 Miles)

Sport - Female 19 and Under

2:00 PM

$40

Sport - Male 19 and Under

2:00 PM

$40

Sport - Female Open

2:00 PM

$50

$55 after Jul 31

Sport - Male Open

2:00 PM

$50

$55 after Jul 31

Sport - Non-Binary

2:00 PM

$50

$55 after Jul 31

Sport - Female Masters (40+)

2:00 PM

$50

$55 after Jul 31

Sport - Male Masters (40+)

2:00 PM

$50

$55 after Jul 31

Sport - Female Masters (50+)

2:00 PM

$50

$55 after Jul 31

Sport - Male Masters (50+)

2:00 PM

$50

$55 after Jul 31

Sport - Female Masters (60+)

2:00 PM

$50

$55 after Jul 31

Sport - Male Masters (60+)

2:00 PM

$50

$55 after Jul 31

Sport - Male Masters (70+)

2:00 PM

$50

$55 after Jul 31

Sport - Female Singlespeed

2:00 PM

$50

$55 after Jul 31

Sport - Male Singlespeed

2:00 PM

$50

$55 after Jul 31

Sport - Clydesdale (200lb+)

2:00 PM

$50

$55 after Jul 31

Expert (30 Miles)

Expert - Female 19 and Under

2:00 PM

$45

Expert - Male 19 and Under

2:00 PM

$45

Expert - Female Open

2:00 PM

$55

$60 after Jul 31

Expert - Male Open

2:00 PM

$55

$60 after Jul 31

Expert - Non-Binary

2:00 PM

$55

$60 after Jul 31

Expert - Female Masters (40+)

2:00 PM

$55

$60 after Jul 31

Expert - Male Masters (40+)

2:00 PM

$55

$60 after Jul 31

Expert - Female Masters (50+)

2:00 PM

$55

$60 after Jul 31

Expert - Male Masters (50+)

2:00 PM

$55

$60 after Jul 31

Expert - Female Masters (60+)

2:00 PM

$55

$60 after Jul 31

Expert - Male Masters (60+)

2:00 PM

$55

$60 after Jul 31

Expert - Male Masters (70+)

2:00 PM

$55

$60 after Jul 31

Expert - Female Singlespeed

2:00 PM

$55

$60 after Jul 31

Expert - Male Singlespeed

2:00 PM

$55

$60 after Jul 31

Expert - Clydesdale (200lb+)

2:00 PM

$55

$60 after Jul 31