Events
Run the River 2027
Price:
$0
Time:
12:00AM CST
- 11:59PM CST
Registration ends December 1, 2027 at 11:59pm CST
Includes 4 of the following races.
Run the River
Spicewood, TX 78669 US
01/01/2027
- 12/31/2027
- Run the River 2027 — Jan 1, 2027 at 12:00am CST to Dec 31, 2027 at 11:59pm CST
Austin Solstice Circuit 52 Miler • 50K • Marathon • 27K • Half-Marathon • 10K • 5K • 12-Hour Solo & Relay
Spicewood, TX 78669 US
07/17/2027
- 07/18/2027
Pick 2 events from this race:
- Golden Hour 5K Run — Jul 18, 2027 at 7:00am CDT to 11:00am CDT
- Golden Hour 10K Run — Jul 18, 2027 at 7:00am CDT to 11:00am CDT
- 27K Run — Jul 17, 2027 at 7:00pm CDT to Jul 18, 2027 at 7:00am CDT
- Marathon — Jul 17, 2027 at 7:00pm CDT to Jul 18, 2027 at 7:00am CDT
- Half-Marathon — Jul 18, 2027 at 7:00am CDT to 11:00am CDT
Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler
Marble Falls, TX 78654 US
05/30/2027
Pick 2 events from this race:
- The 4 Mile March — May 30, 2027 at 7:00am CDT to 12:00pm CDT
- The 4 Mile March (Ruck) — May 30, 2027 at 7:00am CDT to 12:00pm CDT
- Memorial Marathon — May 30, 2027 at 7:00am CDT to 4:00pm CDT
- Remembrance Run Half-Marathon — May 30, 2027 at 7:00am CDT to 4:00pm CDT
- The 8 Mile March — May 30, 2027 at 7:00am CDT to 12:00pm CDT
- The 8 Mile March (Ruck) — May 30, 2027 at 7:00am CDT to 12:00pm CDT
Autumn Harvest 50K • 20-Miler • 10-Miler • 5-Miler • Full • Half • 10K • 5K • Big Bastrop Backyard Ultra (Last Runner & Last Rucker Standing)
Bastrop, TX 78602 US
10/10/2026
- 10/11/2026
Pick 2 events from this race:
- Autumn Harvest Marathon — Oct 11, 2026 at 9:00am CDT to 5:00pm CDT
- Autumn Harvest Half-Marathon — Oct 11, 2026 at 9:00am CDT to 3:00pm CDT
- Autumn Harvest 10K — Oct 11, 2026 at 9:00am CDT to 3:00pm CDT
- Harvest 5K Run — Oct 11, 2026 at 9:00am CDT to 3:00pm CDT
- Autumn Harvest 20-Miler — Oct 10, 2026 at 8:00am CDT to 6:00pm CDT
- Autumn Harvest 10-Miler — Oct 10, 2026 at 8:00am CDT to 3:00pm CDT
- Autumn Harvest 5-Miler — Oct 10, 2026 at 8:00am CDT to 12:00pm CDT
Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Last Standing
Marble Falls, TX 78654 US
03/27/2027
- 03/28/2027
Pick 2 events from this race:
- Last One Standing (Gauntlet) — Mar 27, 2027 at 12:00pm CDT
- Marathon — Mar 28, 2027 at 8:00am CDT to 9:00pm CDT
- Half- Marathon — Mar 28, 2027 at 8:00am CDT to 5:00pm CDT
- 10K Bluebonnet Trail Race — Mar 28, 2027 at 9:00am CDT to 5:00pm CDT
- 5K Bluebonnet Trail Race — Mar 28, 2027 at 9:00am CDT to 5:00pm CDT
- Half-Marathon Ruck — Mar 28, 2027 at 8:00am CDT to 5:00pm CDT
Canyon of the Eagles New Year's Trail Challenge · 100K & 50K ULTRA, Marathon, 13.1M Run & Ruck, 5K • Last Runner Standing
Burnet, TX 78611 US
01/01/2027
- 01/02/2027
Pick 2 events from this race:
- Marathon — Jan 1, 2027 at 10:00am CST to 9:00pm CST
- 1/2 Marathon — Jan 1, 2027 at 10:00am CST to 9:00pm CST
- 1/2 Marathon Ruck — Jan 1, 2027 at 10:00am CST to 9:00pm CST
- 10K — Jan 1, 2027 at 10:00am CST to 9:30pm CST
- 10K Ruck — Jan 1, 2027 at 10:00am CST to 9:30pm CST
- 5K Run/Walk — Jan 1, 2027 at 10:00am CST to 9:30pm CST
- 5K Ruck — Jan 1, 2027 at 10:00am CST to 9:30pm CST
- 5K (Day 2) — Jan 2, 2027 at 7:00am CST to 10:00am CST
- 10K (Day 2) — Jan 2, 2027 at 7:00am CST to 10:00am CST
- 1/2 Marathon (Day 2) — Jan 2, 2027 at 7:00am CST to 10:00am CST
- Last One Standing (Gauntlet) — Jan 1, 2027 at 12:00pm CST
Colorado River Run 250K • 100 Mile • 100K • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K
Cedar Creek, TX 78612 US
11/28/2026
Pick 2 events from this race:
- Marathon — Nov 28, 2026 at 9:00am CST to 8:30pm CST
- Half Marathon — Nov 28, 2026 at 9:00am CST to 5:00pm CST
- Double Turkey 10K — Nov 28, 2026 at 9:00am CST to 5:00pm CST
- Double Turkey 5K Run/Walk — Nov 28, 2026 at 9:00am CST to 5:00pm CST
- Half-Marathon Ruck — Nov 28, 2026 at 9:00am CST to 5:00pm CST
Fields of Gold 50 Miler • 50K • Marathon • Half Marathon & Ruck • 12 Hour • 10K • 5K
Marble Falls, TX 78654 US
10/24/2026
Pick 2 events from this race:
- Gold Marathon — Oct 24, 2026 at 9:00am CDT to 9:00pm CDT
- Gold Half-Marathon — Oct 24, 2026 at 9:00am CDT to 7:00pm CDT
- Gold 10K — Oct 24, 2026 at 9:00am CDT to 7:00pm CDT
- Golden Hour 5K (Night) — Oct 24, 2026 at 5:15pm CDT to 6:45pm CDT
- Golden Hour 5K (Morning) — Oct 24, 2026 at 7:40am CDT to 8:45am CDT
- Half-Marathon Ruck — Oct 24, 2026 at 9:00am CDT to 7:00pm CDT
Lost Pines Endurance Fest 5K to 250K
Bastrop, TX 78602 US
01/16/2027
- 01/17/2027
Pick 2 events from this race:
- Lost Pines 5K — Jan 16, 2027 at 10:00am CST to 12:00pm CST
- Lost Pines Half-Marathon — Jan 16, 2027 at 10:00am CST to 4:00pm CST
- Lost Pines Half-Marathon Ruck — Jan 16, 2027 at 10:00am CST to 4:00pm CST
- Lost Pines 5K (Ruck) — Jan 16, 2027 at 10:00am CST to 12:00pm CST
- Lost Pines Marathon — Jan 16, 2027 at 10:00am CST to 6:00pm CST
- Lost Pines 10K — Jan 17, 2027 at 7:00am CST to 10:00am CST
- Lost Pines 10K Ruck — Jan 17, 2027 at 7:00am CST to 10:00am CST
- Lost Pines 10-Miler — Jan 17, 2027 at 7:00am CST to 11:00am CST
- 25K — Jan 17, 2027 at 7:00am CST to 11:00am CST
MATAGORDA: Gulf Coast Trail Running Festival
Matagorda, TX 77457 US
02/14/2027
Pick 2 events from this race:
- Matagorda Marathon — Feb 14, 2027 at 8:00am CST to 4:00pm CST
- Matagorda Half Marathon — Feb 14, 2027 at 8:00am CST to 12:00pm CST
- Matagorda 10K — Feb 14, 2027 at 8:30am CST to 12:00pm CST
- Matagorda 5K — Feb 14, 2027 at 8:30am CST to 12:00pm CST
- Half Marathon & Ruck — Feb 14, 2027 at 8:00am CST to 12:00pm CST
Oasis Dash Half Marathon • 5 Miler • 5K • Speedyard (Fastest one standing)
Austin, TX 78732 US
11/21/2026
Pick 2 events from this race:
- RRCA 5 Miler (8K) — Nov 21, 2026 at 9:00am CST to 12:00pm CST
- 5K — Nov 21, 2026 at 9:00am CST to 12:00pm CST
- 1/2 Marathon — Nov 21, 2026 at 8:00am CST to 12:00pm CST
- Speedyard — Nov 21, 2026 at 9:15am CST to 12:30pm CST
Rodeo Trail Run of Austin • Backyard Ultra (Last Cowboy/Cowgirl Standing) • 8 Hour • Marathon • Half Marathon • Backyard Ultra Relay Duos (2-Person Team)
Spicewood, TX 78669 US
03/13/2027
- Rodeo Half-Marathon — Mar 13, 2027 at 8:00am CST to 3:00pm CST
- Rodeo Marathon — Mar 13, 2027 at 8:00am CST to 7:00pm CST
Star of Texas 50 Miler • 50K • Marathon • Half Marathon • 10K • 5K • Speedyard (Fastest One Standing)
Spicewood, TX 78669 US
12/13/2026
Pick 2 events from this race:
- The Star of Texas Marathon — Dec 13, 2026 at 9:30am CST to 5:30pm CST
- Holiday Victory Half Marathon — Dec 13, 2026 at 9:30am CST to 3:00pm CST
- Holiday Victory 10k — Dec 13, 2026 at 3:00pm CST to 5:30pm CST
- Holiday Victory 5K — Dec 13, 2026 at 10:00am CST to 3:00pm CST
- Speedyard (Fastest One Standing — Dec 13, 2026 at 10:30am CST to 6:30pm CST
Event Description
Fit Foundation
Run the River (Texas Colorado River Running Series)
2027 Season · Every mile you run with us moves you downstream
The Colorado runs from the Highland Lakes to Matagorda Bay, and every Fit Foundation race sits somewhere along it. Run the River tracks how far down that corridor your legs carry you across the season.
Every mile counts, from the 5K up, at every race we put on. There is nothing to join and no separate entry fee. Enter a race and you are on the river.
Everyone starts at zero
January 1, 2027
The season closes December 31. Miles do not carry into 2028.
The markers
Marble Falls · 15 miles
The first marker. A half marathon and a 5K will do it. So will a 25K, or four short races across the year.
Pace Bend · 31 miles
Downstream to Lake Travis. One 50K, or a marathon and a 10K, or a steady year of halves.
Austin · 62 miles
Where the river runs through town. Two 50Ks, or a 50 miler and a half.
Bastrop · 155 miles
Out of the lakes and into the lost pines. This is 250 kilometers, and it is the Rio Colorado 250K Club buckle, presented at the finish line the moment you cross it.
Matagorda · 400 miles
Where the Colorado meets the Gulf. This one is the Rio Colorado Ultra Slam, a season of its own with its own rules and a capped roster.
How it works
- Enter any Fit Foundation race in 2027. That is all it takes to be on the river.
- Every finished mile is credited automatically. There is nothing to claim and no extra fee.
- Every distance counts, from the 5K up. Timed events count the distance you actually cover. Backyard ultras count 4.167 miles per yard completed.
- Reach a marker at any race and it is presented to you at that finish line. There is no ceremony and nothing gets mailed out. You have to be there.
- Markers are named for points on the river, not for where you collected them. You can earn Marble Falls at a race in Austin.
- The season runs January 1 to December 31, 2027. Miles do not carry into the following year.
- Want to know where you stand mid season? Ask us at any race, or reply to any email from us and we will tell you.
One race puts you on the river.
Every mile after that carries you downstream.
The 2027 season opens January 1. Standings are updated after every race.
Contact Form
If you have any questions about this race, click the button below.
Event Location
Multiple venues along the Colorado River corridor, from Lake Buchanan to Matagorda Bay. Run the River is not a single event. Miles are earned at any Fit Foundation race, wherever it is held.
Various
Various
Spicewood, TX 78669 US
View Location on Map
