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Underoath - Define the Great Line 20th Anniversary Tour

Underoath - Define the Great Line 20th Anniversary Tour
Date
Saturday, November 21, 2026
Time
5:30 PM
Venue
Fillmore Auditorium (Denver)
Genre
Pop
Countdown
In 6 days

About Underoath - Define the Great Line 20th Anniversary Tour

Underoath - Define the Great Line 20th Anniversary Tour is a pop concert taking place at Fillmore Auditorium (Denver) in Denver, Colorado on Saturday, November 21, 2026 at 5:30 PM. Ticket prices are shown on the ticket page.

It is one of 45 concerts in Denver that week. There are 25 other events on the Denver calendar the same day. Fillmore Auditorium (Denver) has 16 upcoming events listed here. Underoath has 26 upcoming dates, including Seattle, Salt Lake City and Minneapolis.

From the organizer

ALL AGES WELCOME BAG POLICY: Bags up to 12" X 6" x 12" are allowed in the venue. All bags will be searched prior to entry. Bags that are not clear will be subject to additional search. DOORS: 5:30PM SHOW: 6:30PM *ALL SUPPORT ACTS & SET TIMES ARE SUBJECT TO CHANGE WITHOUT NOTICE

Lineup

More dates for Underoath

Know before you go

Ticket limit
There is an overall 8 ticket limit for this event.
Ticket sales
General sale opened Fri, Jun 12, 2026 at 10:00 AM MDT and closes Sat, Nov 21, 2026 at 7:30 PM MST.
Presented by
Live Nation Music

The venue: Fillmore Auditorium (Denver)

Fillmore Auditorium (Denver)
1510 Clarkson, Denver, CO 80218
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Parking
Street parking & paid lots. Arrive Early. Paid lots not affiliated with Fillmore.
Accessible seating
This is an all general admission event unless otherwise noted on the map. We are offering accessible seating that you may purchase in advance for GA shows. Please be aware that stairs may restrict access to locations not marked as wheelchair accessible. ADA sections provide general admission entry to the purchased section, and seats in that section will be filled in order of arrival. A member of our team will be available to escort you to your seat once you arrive at the venue. If you do not see available accessible seats, please purchase a general admission ticket, and contact the venue so we may accommodate your request for accessible seating. We recommend that you arrive at the venue at the door time listed on the event page and talk to a member of our staff to receive accommodations.
Box office hours
The Fillmore Auditorium Box Office Hours are: Fridays 12PM-6PM 3 Hours before doors open on event days though show time.
Box office phone
(303)837-0360 main business #.
Payment accepted
The box office accepts MasterCard, Visa, Amx, Discover. We have gone cashless at our box office window.
Will call
Available on the evening of the show only approximately 30 minutes prior to the doors opening.
House rules
To enhance the guest experience and for your safety, the following items are prohibited from entry to the Fillmore: Cans, bottles, glass, outside food or drinks, large bags or backpacks, weapons of any kind, illegal drugs, laser pointers, video recorders, large or professional cameras, stickers, flyers, markers, glow sticks, projectiles. The Fillmore Auditorium is a no smoking facility, cigarettes and any other inhaling devices including vaporizers are prohibited inside the venue. Tobacco products may be consumed in our designated smoking area outside the South side of the venue. Marijuana products are prohibited. Per Colorado Amendment 64, public display and consumption of marijuana is prohibited by law. Crowd surfing and other behavior that may endanger the well-being of other patrons is prohibited. Small cameras and audio recording subject to artist approval. Other items may be prohibited at artist request or venue discretion. The Fillmore reserves the right to refuse entry or remove anyone for any reason. Most shows are ages 16 & over with valid ID only unless otherwise noted. Alcohol will be served to those who are 21+ with valid I.D. There are some shows that are listed as *All Ages* where there will be no age requirement for entrance. The Fillmore Auditorium is usually configured as General Admission mainly standing-room with limited seating areas available.

Seating chart

Seating chart for Underoath - Define the Great Line 20th Anniversary Tour at Fillmore Auditorium (Denver)

Coming up at Fillmore Auditorium (Denver) 16 events

Questions about this event

When is Underoath - Define the Great Line 20th Anniversary Tour?

Underoath - Define the Great Line 20th Anniversary Tour takes place on Saturday, November 21, 2026 at 5:30 PM (local Denver time).

Where is Underoath - Define the Great Line 20th Anniversary Tour held?

At Fillmore Auditorium (Denver), 1510 Clarkson, Denver, CO 80218. The venue has 16 upcoming events on our calendar.

How much are tickets for Underoath - Define the Great Line 20th Anniversary Tour?

Prices were not published with this listing. Follow the ticket link for current availability and pricing.

Who is on the bill for Underoath - Define the Great Line 20th Anniversary Tour?

The listed lineup is Underoath, August Burns Red, Atreyu and As Cities Burn.

Is there parking at Fillmore Auditorium (Denver)?

Street parking & paid lots. Arrive Early. Paid lots not affiliated with Fillmore.

Is Fillmore Auditorium (Denver) wheelchair accessible?

This is an all general admission event unless otherwise noted on the map. We are offering accessible seating that you may purchase in advance for GA shows. Please be aware that stairs may restrict access to locations not marked as wheelchair accessible. ADA sections provide general admission entry to the purchased…

What else is happening in Denver on November 21?

Also on Saturday, November 21: Bluey's Big Play - The Stage Show (Recommended for Ages 2 and Over. A ticket is required for each patron in attendance) at Buell Theatre, STATE CHAMPS - 10 YEARS OF 'AROUND THE WORLD AND BACK' at Summit Music Hall and Denver Pioneers Hockey vs. St. Thomas Tommies Hockey at Magness Arena, plus 22 more.

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