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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • 10K
  • 10 km
  • Avalon
  • Event weekend starts
  • Open entry

Catalina Island Marathon 10K

This race edition

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

Entry options

2027 edition

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

Modelled energy-cost change 13.2% versus flat · net elevation 0 m

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

Decision summary

Catalina Island Marathon 10K at a glance

Route ascent
398 m

Lower than 5% of comparable mapped races

Cut-off average pace
19:30/km

3:15:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.

Typical conditions
75/100

Historical race-date favourability, not a forecast

Evidence depth
21 verified facts

Stored GPS route

Quick answers

What runners ask first

Catalina Island Marathon 10K route map

raceindex.org has a GPS course file for Catalina Island Marathon 10K, 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 Catalina Island Marathon 10K?

The Catalina Island Marathon 10K route has 398 m of ascent, 398 m of descent and an estimated 13.2% grade-adjusted pace penalty versus a flat route.

Where does the Catalina Island Marathon 10K route go?

The Catalina Island Marathon 10K route starts at Avalon, Catalina Island. Underfoot, expect a road course. The setting includes city and coastal. runners may see the island's free-roaming American bison along the marathon course.

Race character

Scenery

  • City
  • Coastal
  • Waterfront
  • Island
  • Mountain
  • Countryside

Atmosphere

  • Wilderness
  • Destination
  • Scenic Tour

Terrain

  • Road

Entry, logistics and records

Records and field

Men's course record
32:34
Women's course record
38:49

Entry requirements

Entry status
Open entry: The held registration model is open entry and this edition is not marked sold out.
Cut-off
Start 8:15am PST, end 11:30am PST

Access and course status

Start
Avalon, Catalina Island

Course facts

Course type
Loop
Notable features
  • Billed as the 49th Annual Catalina Island Marathon for the 2027 edition
  • runners may see the island's free-roaming American bison along the marathon course
  • Triple Crown Challenge: complete the Catalina Island Marathon, Catalina Island Half Marathon and the Avalon 50K/50M Benefit Run within a 12-month period
  • combined entry priced at $392.45 early registration (rising to $503.75 by race day)
  • 10K route runs through Avalon's city streets and out toward the Wrigley Memorial

How hilly is the Catalina Island Marathon 10K?

25%18%17%15%25%
  • Steep descent 25%
  • Descent 18%
  • Flat 17%
  • Climb 15%
  • Steep climb 25%
Total ascent
398 m
Net elevation
+0 m
GAP factor
13.2%
Longest climb
2,270 m at 5.9%
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?

  • 15°CTypical temperature
  • 22 kphTypical wind
  • 2 mmTypical rainfall
  • 75Favourability /100
Typical conditions for the race date and locality, warmer 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 Catalina Island Marathon 10K flat?

Its normalised GAP factor is 13.2% slower than a flat course, with about 398 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 (3)

Read the full methodology →