Register & Packet Pick Up

Race Info

Tunnel Marathon & Half Marathon

Fast. Scenic. Boston Built.

The Tunnel Marathon and Half Marathon races offer some of the fastest courses in the country. These net-downhill courses deliver outstanding times thanks to their steady grade and low starting elevation. It’s the ideal race to set a Personal Record, earn a Boston Qualification (marathon), or run your first marathon or half.

2026 Race Dates

Registration opens February 13, 2026, at 7:00 AM

Health & Safety

If you are experiencing symptoms of illness or have been exposed to COVID-19, we respectfully ask that you stay home.

Marathon Registration Information

All races are held on the same beautiful course beginning at Hyak/Snoqualmie Pass. Each marathon is a Boston Qualifier and USATF Certified. (2026 certification coming soon)

Marathon Entry – $159

Your registration includes:

  • Net-downhill, fast course experience (no Boston time penalty)

  • Bus transportation from the race finish back to Hyak for post race celebration

  • Runner packet

  • 9 fully staffed aid stations

  • Drop bag service

  • Volunteer support throughout the course

  • Finisher medal

  • Race shirt

  • Post-race food and refreshments

Half Marathon Registration Information

Half Marathon Entry – $119

Offered on all three race dates:

  • June 7, 2026

  • August 9, 2026

  • September 13, 2026

Your registration includes:

  • Fast, net-downhill course

  • Bus transportation from the race finish back to Hyak for post race celebration

  • Runner packet

  • 5 fully staffed aid stations

  • Drop bag service

  • Volunteer support

  • Finisher medal

  • Race shirt

  • Post-race food and refreshments

Community Support

We proudly support:

  • Washington State Parks & Recreation

  • Local youth cross-country programs, including Mt. Si, Issaquah, and Enumclaw XC teams

Packet & Bib Pickup

Location:
TBD

Time: 12:00 PM – 4:00 PM

Dates:

  • June 6, 2026 (for June 7 race)

  • August 8, 2026 (for August 9 race)

  • September 12, 2026 (for September 13 race)

If you are unable to attend packet pickup, bibs may be picked up race morning at the start line.
Please note: We do not mail bibs.
If picking up race morning, shirts will be distributed at the finish line.

Gear Drop Information

Each runner receives one gear drop bag at the start line (optional transport to the finish line).

  • Two tear tags are attached to your bib.

  • Affix one tag to your headlamp — headlamps may be dropped at the Aid Station upon exiting the tunnel and retrieved after the race.

  • Affix the second tag to your gear drop bag at the start.

  • Gear drop will be located near the porta-potties at the start line.

Refund Policy

Please review our full refund policy on the registration page.