Sun, Oct 11, 2026

City of Trees Marathon

Boise, ID

Registration openAnnual since at least 2022

MarathonHalf Marathon10K5K

Entry is $55 now and rises to $60 after Sep 1, 2026, so registering before then saves $5.

About the City of Trees Marathon

The course runs along the Boise Greenbelt, tracing the river as it moves through a rocky canyon and into the city. The path is close enough to the water that you can hear it for much of the run. Wildlife is genuinely possible out there, and route changes can happen if flooding or construction forces a detour.

Packet pickup is spread across a few days before the race, with stops at a local running store and a nearby brewery. The brewery also serves as the race-day hub, and parking is available around there on race morning.

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Finish-Time Stats

Going by the 2025 results, this is a decent-sized field, with a competitive front end and a big recreational middle.

13.1 Miles · 2025 results

715finishers

1:16:38winner

2:16:34median

4:33:51cutoff

Top 3: Jesse Anguiano (1:16:38) · Blake Taylor (1:16:55) · Aj Morgan (1:17:15)

3.1 Miles · 2025 results

289finishers

17:38winner

36:24median

1:20:22cutoff

Top 3: Devan Wilson (17:38) · Shaina Cales (18:36) · Mason Huffman (19:02)

6.2 Miles · 2025 results

271finishers

34:32winner

1:08:21median

2:05:55cutoff

Top 3: Luke Galloway (34:32) · Ezechel Trifan (40:45) · Isaac Robertson (42:13)

26.2 Miles · 2025 results

266finishers

2:40:32winner

4:36:26median

7:40:33cutoff

Top 3: Danny Larson (2:40:32) · Carlos Trujillo (2:44:36) · Andrew Jenott (2:48:25)

The City of Trees Marathon has been held every year since at least 2022. That is as far back as RunSignup's records for this race go, so it may well be older.

Where Would You Finish?

Enter a finish time to see where it lands against the most recent 13.1 Miles results.

Median

See how your time stacks up nationally →

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.

Distances & Start Times

26.2 Miles10/11/2026 08:00$95

13.1 Miles10/11/2026 08:30$85

6.2 Miles10/11/2026 09:00$65

3.1 Miles10/11/2026 09:00$55

Virtual - any distance!10/11/2026 09:00$45

Going for a Time?

Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.

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Where to Stay

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Common Questions About the City of Trees Marathon

Will I finish last at the City of Trees Marathon?

Almost certainly not. Half the 13.1 Miles field finished slower than 2:16:34, and the last recorded finisher came in around 4:33:51, so there is a long tail of runners behind the middle of the pack. Most fields are far slower than people expect.

Is the City of Trees Marathon a good first 13.1 Miles?

A field of 715 is big enough that you will have company at your pace without feeling lost in a crowd. There is no qualifying time, and the finish-time spread above shows how varied the field really is. If it is your first 13.1 Miles, that spread matters more than the winner's time.

How competitive is the City of Trees Marathon?

The 13.1 Miles winner ran 1:16:38 while the median finisher took 2:16:34. That spread points to a mixed field, with a competitive front and a big recreational middle.