Nymeo Field at Harry Grove Stadium
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Nymeo Field at Harry Grove Stadium is a ballpark in Frederick, Maryland, home of the Frederick Keys, the High-A affiliate of the Baltimore Orioles in the South Atlantic League. It opened in 1990, making it 36 years old in 2026 and seats about 5,400 fans. $39 million upgrade built 2025-26.
The closest MLB stadium is Nationals Park in Washington, about 42 miles away.
Ballpark facts
- Location
- Frederick, Maryland
- Home of
- Frederick Keys
- League
- South Atlantic League
- MLB affiliate
- Baltimore Orioles
- Opened
- 1990
- Capacity
- 5,400
- Dimensions
- Center 400 ft · Right field 325 ft
- Roof
- Open air
- 2026 attendance
- 2,779 per game
- Named for
- Harry Grove
- Former names
- Harry Grove Stadium
- Big events
- Carolina-California League All-Star Game (2005)
Ballparks near Nymeo Field at Harry Grove Stadium10
- 1D-IIIFCC Baseball Field — Hood Blazers same city
- 2JUCOFrederick CC Cougars Baseball Field — Frederick CC Cougars same city
- 3D-IStraw Family Stadium — Mount St. Mary's Mountaineers 19 mi
- 4D-IIFairfax Field — Shepherd Rams 22 mi
- 5SummerCriswell Automotive Field at Kelley Park — Gaithersburg Giants 22 mi
- 6JUCOHagerstown CC Hawks Baseball Field — Hagerstown CC Hawks 22 mi
- 7D-IIIPreston Field — McDaniel Green Terror 24 mi
- 8SummerFireman's Field — Purcellville Cannons 25 mi
- 9SummerFirst Responder Field by ServPro at OBGC Park — Olney Cropdusters 26 mi
- 10JUCOMontgomery College Raptors Baseball Field — Montgomery College Raptors 27 mi
Other South Atlantic League ballparks11
The Frederick Keys share the South Atlantic League with 11 other teams listed on Inside the Park. Here they are, nearest first.
- 1High-ADaniel S. Frawley Stadium — Wilmington Blue Rocks 100 mi
- 2High-AShoreTown Ballpark — Jersey Shore BlueClaws 176 mi
- 3High-AMaimonides Park — Brooklyn Cyclones 201 mi
- 4High-AHeritage Financial Park — Hudson Valley Renegades 238 mi
- 5High-AFirst National Bank Field — Greensboro Grasshoppers 266 mi
- 6High-ATruist Stadium — Winston-Salem Dash 279 mi
- 7High-AHomeTrust Park — Asheville Tourists 386 mi
- 8High-AFifth Third Park — Hub City Spartanburgers 396 mi
- 9High-AFluor Field at the West End — Greenville Drive 419 mi
- 10High-ABowling Green Ballpark — Bowling Green Hot Rods 518 mi
- 11High-AAdventHealth Stadium — Rome Emperors 558 mi
Questions about Nymeo Field at Harry Grove Stadium
What other ballparks are in the South Atlantic League?
11 other South Atlantic League teams play at parks listed here. The nearest are Daniel S. Frawley Stadium, ShoreTown Ballpark, and Maimonides Park.
Where do the Frederick Keys play home games?
The Frederick Keys play at Nymeo Field at Harry Grove Stadium in Frederick, Maryland.
When did Nymeo Field at Harry Grove Stadium open?
Nymeo Field at Harry Grove Stadium opened in 1990.
How many people does Nymeo Field at Harry Grove Stadium hold?
Nymeo Field at Harry Grove Stadium has a capacity of about 5,400.
What is the closest MLB stadium to Nymeo Field at Harry Grove Stadium?
Nationals Park in Washington, Washington, D.C., about 42 miles away.
What other ballparks are near Nymeo Field at Harry Grove Stadium?
FCC Baseball Field is also in Frederick. See the full list of nearby ballparks on this page.
Facts are for the 2026 season. Distances are straight-line miles between city centers. Capacity figures vary by source and some include lawn seating. See something wrong? Let us know. Is this your ballpark? Get the “Listed on Inside the Park” badge for your website.