HalfRuns
Appalachian Series - Day 3 (SC)

Appalachian Series - Day 3 (SC)

Race Date

Mar 21, 2027

Location

Seneca, SC

Standout65

Quick facts

Date
Sunday, March 21, 2027
Location
Seneca, South Carolina
Distance
Half marathon (13.1 mi)
Course
Loop Course
Terrain
Road
USATF certified
Not listed

The Experience

Welcome to the best multi-day, multi-state Running Series!

Mainly Marathons has 75 events across 13 series taking place in all 50 states!

Mainly Marathons 2026 Calendar

The 2026 series dates have been announced and the Calendar can be found HERE (https://mainlymarathons.com/wp-content/uploads/2025/08/MM-Newsletter-2025-August12.jpg). The 2026 calendar is similar to that of 2025, including 75 races covering all 50 States and 3 Running Ragged combined series! Join us for one race, all 75 (AAA Challenge!), or any number in between! Use the “Races/Series” tab in the header of the website to find details on each of the series. Registration links are on the corresponding series page, also available below:

Online registration via Active.com is open for all 2026 Series: Aloha, Gulf Coast, Appalachia (https://endurancecui.active.com/new/eventseries/126720/select-race)n, Riverboat, Prairie, Independence (https://endurancecui.active.com/new/eventseries/128706/select-race), New England (https:

Logistics

Race Day

Sunday, March 21, 2027

Start Time

TBA

Start Location

Seneca, SC

Directions

Course Info

Course Type

Loop Course

Terrain

road

Difficulty

Ultra-Flat

Quality Score

Standout65
Methodology
Heritage10/20

5 years running

Size9/15

~51 finishers a year

Momentum5/5

growing or steady

Loyalty20/20

28% returning runners

Course & details6/15

2 timing sources · 3 photos

National draw8/10

runners from 21 states

Front-pack speed0/5

winner 1:40:05

Weather8/10

typical high 64°F

Race Day Weather

5-year historical avg

Start (Low)

44°

Afternoon (High)

63°

Pleasant conditions — light layers at start, comfortable by finish

0.1"

Precipitation

11 mph

Wind

68%

Humidity

Race Photos

Frequently asked

When is the Appalachian Series - Day 3 (SC)?

The Appalachian Series - Day 3 (SC) is held on Sunday, March 21, 2027.

Where does the Appalachian Series - Day 3 (SC) take place?

It takes place in Seneca, South Carolina.

What distances does the Appalachian Series - Day 3 (SC) offer?

The half marathon (13.1 miles).

Is the Appalachian Series - Day 3 (SC) course flat and good for a PR?

The Appalachian Series - Day 3 (SC) is a ultra-flat, loop course course.

HalfRuns editorial — independent, no paid placement.

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