TMC A-Mountain Half Marathon + 4-Miler + Family Mile logo
Running

TMC A-Mountain Half Marathon + 4-Miler + Family Mile

Date
October 18, 2026
Distance
TMC A-Mountain Half Marathon · Four-Miler · SAR FitKidz Free Mile 12-and-under & more
Register →

From the Organizer

Event Details: Choose from 4 different events

TMC A-Mountain Half-Marathon

  • The only 13.1 mile half-marathon that's actually locally-produced, your beautiful course will circle the summit of A-Mountain then cruise a speedy out-and-back along the scenic Santa Cruz Riverpath 

  • All Half registrants receive a technical race shirt, perfect for the coming winter months

  • All Half registrants receive the souvenir medal

  • Prize money for top runners and gift certificates to The Running Shop for age group winners 

  • The Half-Marathon is part of SAR's Running Shop Grand Prix

  • Time Limit: There is a four-hour time limit for the half-marathon.  The finish line closes at 10:30 am.  Tucson Police Department reserves the right to call for participant pick-up in case of public safety concerns. 

  • Updated Pricing: $60 through January 31, 2026; then $75 through July 31; then $85 through September 30; then $100 from October 1 through race day

 

TMC A-Mountain Four-Miler Run/Walk

  • You can walk or run this out-and-back route that circles the top of A-Mountain, with beautiful views of the entire Tucson region 

  • All 4-Miler registrants receive the colorful race shirt and the souvenir medallion

  • Gift certificates to The Running Shop for age group winners 

  • Updated Pricing: $40 through May 31; then $45 through September 30; then $50 from October 1 through race day
     


SAR's FitKidz Free Mile 

  • Free for children 12-and-under, with parental/family participation allowed

  • Kids goodies provided by the SAR FitKidz Program

  • Everyone must be officially registered

  • Price: Free


Family Mile

  • Low price of $5 for all 13-and-over -- perfect for all abilities

  • Timed mile that you can walk or run with finisher's video on results page

  • You may be able to purchase a souvenir shirt on race day

  • Your race number gets you discounts to local merchants and restaurants

  • Everyone must be officially registered

  • Price: $5, no shirt, no medal

 

Fabulous Goodies and Race Day Fun:

Colorful t-shirt guaranteed first 1200 registrants in the half and 4-miler

Souvenir medallion guaranteed for first 1200 registrants

Age group awards courtesy of the Running Shop

Prize money for top runners

Food, drinks and other fun post-race activities to celebrate your accomplishments.

After the race, chillax with a discounted drink from Westbound to celebrate your accomplishment.

 
Community 

Third and final race of the 2026 Gabe Zimmerman Triple Crown, raising funds for BEYOND-Tucson.

The TMC A-Mountain Half-Marathon is part of the SAR Running Shop Grand Prix.

 

Post-Race

Remaining shirts and medals available at The Running Shop (3055 North Campbell) on a first-come, first-served basis through November (be mindful of that they produce the Thanksgiving Day Classic, so it will be crowded around Thanksgiving!)

We will use this race page, email, and social media channels to provide updated information as we learn more.  For questions or to offer suggestions, contact Randy at randy@runtucson.net.

Events

TMC A-Mountain Half Marathon6:30 AMRegister →
Four-Miler6:30 AMRegister →
SAR FitKidz Free Mile 12-and-under8:30 AMRegister →
Run Tucson Family Mile, Ages 13 and up8:30 AMRegister →

Weather

Typical Conditions

It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.

Typical High

85°

Typical Low

59°

Chance of Rain

10%

Based on US Climate Normals data from Tucson Wfo, 1 mi from the venue.

Sunrise 6:30 AMSunset 5:49 PMDaylight 11h 19m

Host City

About Tucson, AZ

Population

543,348

as of 2023

Elevation

2,430 ft

Nearest Airport

TUS

Tucson International Airport · 8 mi

Time Zone

Mountain Time

From Endurance Grid

A big city race. Expect multiple lodging options and plenty to do the day before.

Race Location

Your Next Start Line

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at TMC A-Mountain Half Marathon + 4-Miler + Family Mile, put it on the calendar, and turn “someday” into a start date.

132

Days to train

Race
TMC A-Mountain Half Marathon + 4-Miler + Family Mile
Date
October 18, 2026

From Endurance Grid

About This Sport

Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.

The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.

Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.

The half marathon rewards people who show up for the boring training miles.

How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.

Read the Guide

Running

From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Frequently Asked Questions (FAQs)

What is the TMC A-Mountain Half Marathon + 4-Miler + Family Mile?
TMC A-Mountain Half Marathon + 4-Miler + Family Mile is a running race held in Tucson, Arizona on October 18, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
When and where is the TMC A-Mountain Half Marathon + 4-Miler + Family Mile?
Sunday, October 18, 2026 in Tucson, Arizona at 267 S AVENIDA DEL CONVENTO, Tucson, AZ. Check the event page for exact start times and wave schedules.
How do I register for the TMC A-Mountain Half Marathon + 4-Miler + Family Mile?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

TMC A-Mountain Half Marathon + 4-Miler + Family Mile

Oct 18, 2026

Register →