We’re bringing it back! The Mile High Massacre – US Nationals is back for its second year. Join us August 15-17, 2025 in Westminster, Colorado. The Mile High Massacre is a Major sanctioned ISSA-International Slalom Skateboard Association National Championship event.

RACER ENTRY FEE:

$150 for the weekend (HS, TS & GS) or $50 for single event per racer, includes event t-shirt and lunch.
Note: you must race ALL three events to qualify for the overall results.

PLEASE REGISTER AND PAY IN ADVANCE.

DIVISIONS/CLASSES:

Expect a traditional race structure – using ISSA rules – with one event per day. All competitors are welcome to attend. We will have separate divisions for Pro Men and Pro Women, and will also run Am, Junior, and Masters brackets for both Men and Women.

EVENT SCHEDULE AND HILL LOCATIONS:

Race location:
The hill is located at 39°54’00.6″N 105°08’34.7″W

Please note:
It is extremely important that we do not have ANY unauthorized practice or skateboarding of any kind on the hill this week before Friday morning. We know you are excited to get out there. However, any use of the hill WILL JEOPARDIZE our permits, and put our entire event at risk.

Parking:
There are two designated parking areas:
1. We have been granted permission to use the parking lot at the top of the hill and ask that most racers utilize this option. If you plan to park at the top, you must arrive BEFORE 10:00am on Friday and BEFORE 8:30 am on Saturday and Sunday. You will be blocked in and unable to leave the hill until racing concludes.
2. The second parking area is located along the left side of the road IN THE GRAVEL on the shoulder, BEFORE the roundabout only. Please either pull in or back in to park perpendicular to the road, to maximize space. There is one “emergency access” driveway that must not be blocked. This parking can be used for racers as well as spectators and other attendees, and cars parked here can come and go as they like.
Please DO NOT park in the FedEx Parking lot.
Please review the map:

Emergency access:
It is critical that the emergency access road along the left side of the hill stay clear and open at all times during the event. There are a few vehicles that will use this road to access facilities to the west of us. Please set up only along the right side of the road only.

Schedule:

Friday: Single Lane Giant
9:30-10am arrival & parking
10am Check-in
11am Practice opens
12:30pm Racer meeting
1pm Racing begins
7pm La Costa Racing Annual Party: open to everyone, located at Famille restaurant

Saturday: Dual Lane Hybrid
9am Practice opens
10:30am Qualifying for all divisions
12:30pm Lunch break
1pm Pro men & women head-to-head racing
3pm Junior, masters, and amateurs head-to-head racing through the end of the day

Sunday: Dual Lane Tight
9am Pro practice opens
10:30am Pro qualifying
11:30am Pro men & women head-to-head racing
1:00pm Lunch break and course set
2:00pm AM, Master, and Junior practice begins
3:00pm AM, Master, and Junior qualifying
3pm AM, Master, and Junior head-to-head racing through the end of the day
8pm Awards party: located at Tap & Burger in Westminster

AIRPORT INFORMATION:

Denver International Airport (DIA) approximately a 30-40 drive to race and race hotels.

CASH PURSE AND PRODUCT PRIZE AWARDS:

Equal cash prize purses will be paid out based on the overall results for the three events combined for the top pro man and woman finishers.
To qualify for the overall podiums, competitors MUST race all three events.
The overall cash payout will be based on entry fees and sponsor money collected.
Product prizes donated by our sponsors will be distributed to non-cash receiving finishers.

SPONSORSHIP AND MEDIA INQUIRIES:

If you are interested in sponsorship or media coverage opportunities please contact Isa Ruiz – isa@usaslalomskateboarding.com

SAFETY GEAR AND RELEASE WAIVER:

Helmets are mandatory for all racers and safety gear (knee/elbow pads & full finger gloves) strongly recommended. Each racer will be required to sign a waiver/release to gain access to the race course. Minors (under 18 years of age) must have parent or legal guardian present to sign waiver/release in order to participate.

LODGING:

SPECTATORS:

– Justin Rolo, Joe McLaren, & Isa Ruiz