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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Annapolis
  • Event weekend starts
  • Open entry

Naptown Half Marathon & 10K/5K Half Marathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2026 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Modelled energy-cost change 0.9% versus flat · net elevation 0 m

View verified GPS mapOfficial event website & entry ↗
Plan my trainingPlan my paceData current as of

Decision summary

Naptown Half Marathon & 10K/5K Half Marathon at a glance

Route ascent
208 m

Lower than 37% of comparable mapped races

Typical conditions
76/100

Historical race-date favourability, not a forecast

Evidence depth
38 verified facts

Stored GPS route

Quick answers

What runners ask first

Naptown Half Marathon & 10K/5K route map

raceindex.org has a GPS course file for Naptown Half Marathon & 10K/5K, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.

How hilly is the Naptown Half Marathon & 10K/5K?

The Naptown Half Marathon & 10K/5K route has 208 m of ascent, 208 m of descent and an estimated 0.9% grade-adjusted pace penalty versus a flat route.

Where does the Naptown Half Marathon & 10K/5K route go?

The Naptown Half Marathon & 10K/5K route starts at Navy-Marine Corps Memorial Stadium (USNA Stadium), 550 Taylor Avenue, Annapolis, MD 21401. Underfoot, expect mixed roads through downtown Annapolis plus the paved Baltimore-Annapolis Trail. It passes Baltimore-Annapolis Trail, US Naval Academy, Navy-Marine Corps Memorial Stadium, downtown Annapolis and Route 450 / Naval Academy Bridge area. Course starts from the US Naval Academy stadium, travels into downtown Annapolis, then ventures out to the Baltimore-Annapolis Trail for the half marathon.

What should runners know on race day for the Naptown Half Marathon & 10K/5K?

Southbound Route 450 closed to through traffic at Boulters Way; Rowe Boulevard closed 7:30am to 8:15am with a detour to enter downtown.

Race character

Scenery

  • Waterfront
  • City
  • Historic
  • Riverside
  • Forest
  • Parkland

Atmosphere

  • Scenic Tour
  • Community

Terrain

  • Trail
  • Mixed
  • Road
Elevation character
Rolling
Technicality
Moderate

Entry, logistics and records

Entry requirements

Entry status
Open entry: The held registration model is open entry and this edition is not marked sold out.
Cut-off
Required 15 minute per mile pace, with checkpoints at 8:30am (King George/Rt 450) and 9:10am (Boulters Way)
Qualification status
USATF Certified half marathon course; a Boston Marathon qualifying Eligible (boston Equivalent) road half marathon. 10K and 5K have no qualifying status.

Race day logistics

Closed roads
Southbound Route 450 closed to through traffic at Boulters Way; Rowe Boulevard closed 7:30am to 8:15am with a detour to enter downtown.
Expo / packet pickup
Packet pickup at Navy-Marine Corps Memorial Stadium via Gate 5, Friday before race day from 3pm to 6pm
Race village
No

Access and course status

Start
Navy-Marine Corps Memorial Stadium (USNA Stadium), 550 Taylor Avenue, Annapolis, MD 21401
Certified course
USATF certified half marathon course

Course facts

Course type
Loop
Surface
Mixed roads through downtown Annapolis plus the paved Baltimore Annapolis Trail
Landmarks
Baltimore-Annapolis Trail, US Naval Academy, Navy-Marine Corps Memorial Stadium, downtown Annapolis, Route 450 / Naval Academy Bridge area
Notable features
  • December holiday-themed race: Santa caps provided to all participants, plus a White Elephant gift exchange
  • RaceJoy/RaceJoy GPS live tracking available
  • A Rev3 Run production powered by TCR Event Management
  • proud member of RRCA, partnered with Friends of Anne Arundel Trails
  • Course starts from the US Naval Academy stadium, travels into downtown Annapolis, then ventures out to the Baltimore-Annapolis Trail for the half marathon
  • 7 aid/liquid stations on the half course, with electrolytes and nutrition at mile 6.5
  • restrooms at miles 2.8, 5, 5.8, 7.5, 10, 11.5 and 12

How hilly is the Naptown Half Marathon & 10K/5K Half Marathon?

17%63%17%
  • Steep descent 2%
  • Descent 17%
  • Flat 63%
  • Climb 17%
  • Steep climb 1%
Total ascent
208 m
Net elevation
+0 m
GAP factor
0.9%
Longest climb
790 m at 3.0%
Gradient mix and ascent are derived from the course geometry under our published normalisation, not taken from organiser marketing.

What are typical race-day conditions?

  • 4°CTypical temperature
  • 18 kphTypical wind
  • 4 mmTypical rainfall
  • 76Favourability /100
Typical conditions for the race date and locality, cooler than the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

More race details

Is the Naptown Half Marathon & 10K/5K flat?

Its normalised GAP factor is 0.9% slower than a flat course, with about 208 m of total ascent.

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (2)

Read the full methodology →