Order Rev Nat's Cider Today

Forget Daytona, Portland has the ‘Ladd’s 500’

Posted by on February 23rd, 2016 at 1:06 pm

laddcirclelead

Aerial view of Ladd Circle in southeast Portland.

A new event dreamed up by one of Portland’s many creative bike fun enthusiasts could actually wind up making competitors dizzy.

On April 9th a large turnout of riders is expected at Ladd Circle in inner southeast Portland for the first running of the Ladd’s 500. “It’s spring, let’s do something stupid,” described the event’s organizer on Facebook.

Advertisement

Here’s the gist:

“500 laps of Ladd Circle is a century. Form teams of at least 2, switch racers at least 10 times during the race, and turn left for a while. If you want to run it solo, bring two bikes so you can make your switches. Racers are responsible for accurately counting their own laps. Any bike is acceptable, but weirder is funnier. If you’re not racing, let’s party in the middle.”

Actually, forget the Daytona 500, this sounds more like the Little 500 made famous by the classic bicycle movie “Breaking Away” in 1979. Learn more and get the latest updates via the event’s Facebook page.

— Jonathan Maus, (503) 706-8804 – jonathan@bikeportland.org

BikePortland can’t survive without paid subscribers. Please sign up today.

NOTE: We love your comments and work hard to ensure they are productive, considerate, and welcoming of all perspectives. Disagreements are encouraged, but only if done with tact and respect. If you see a mean or inappropriate comment, please contact us and we'll take a look at it right away. Also, if you comment frequently, please consider holding your thoughts so that others can step forward. Thank you — Jonathan

37
Leave a Reply

avatar
9 Comment threads
28 Thread replies
0 Followers
 
Most reacted comment
Hottest comment thread
20 Comment authors
John LiuTed Timmons (Contributor)DanricochetAdam H. Recent comment authors
  Subscribe  
newest oldest most voted
Notify of
AC
Guest
AC

I’m sure the neighbors are gonna love this.

Doug
Guest
Doug

17 laps around the missile deck was a mile on a Trident Submarine. 17×26 1/3 is a marathon. 447 laps, that’s dizzying.

What else is there to do when you’re punching holes in the ocean? We did it the same day as the Boston Marathon. I like idiotic athletic challenges.

37Dennis
Guest
37Dennis

@Doug.. Perhaps “unorthodox” as opposed to “idiotic”. Let’s spin it positive.

Mark M
Guest
Mark M

Is there a motor doping category? I’ll do it on my Surly big dummy/bionX with the kids on the back… I think the battery will last long enough.
#owningmotordoping!

JeffS
Guest
JeffS

Raitt Seemed to think a century was 650 laps. Someone is way off.

http://bikeportland.org/2011/08/01/filmmaker-does-650-laps-for-a-ladd-circle-century-57170

Ian
Guest
Ian

Luckily, Google Maps makes it really easy to measure distances, so we should be able to sort this out. It looks like the inner circle has a diameter of about 244 feet, and the roadway is about 36 feet wide. Obviously, the distance traveled in a lap will depend on how close to the inner circle you ride, so for the sake of argument, let’s compare riding three feet from the inner edge (r = 125 feet), riding in the middle of the roadway (r = 140 feet), and riding three feet from the outer edge (r = 155 feet). These give respective lap distances of 785 feet, 879 feet, and 973 feet, so the corresponding century lap counts would be 673, 601, and 543 laps.

paikiala
Guest
paikiala

3 ft from the outer edge won’t work unless they close the street – it has parking on the outside edge.

Dan
Guest
Dan

Depends on how far out from the center of the circle you’re measuring. Back of the envelope says a ~51 m radius delivers 100 miles in 500 laps.

Dan
Guest
Dan

And the real challenge is the Tabor Ten Thousand, anyways:

Tabortenthousand.com/

Ted Timmons (Contributor)
Editor

Only 10k feet?

(also, that website is painful)

Dan
Guest
Dan

Ha, you should see the guy’s personal website. FWIW, Tabor 10k is a nastier climbing challenge than the West side Ronde.

Ted Timmons (Contributor)
Editor

De Ronde is shorter than the 10k, yeah.

I was being playful- my best is 16,600ft in a day. I ran out of daylight but I was pretty shattered too.

John Liu
Guest
John Liu

The Tabor Ten Thousand website is infested with malware. Don’t go near it.

Ian
Guest
Ian

Unfortunately, it’s impossible to ride a 51-meter radius around Ladd’s Circle: http://i.imgur.com/otcddCr.jpg.

Ladd’s Octagon, on the other hand, is almost exactly a mile: http://i.imgur.com/ffE9Q1T.jpg

Ted Timmons (Contributor)
Editor

presumably there are stop signs or at least implicit yields in the Octagon.

Ian
Guest
Ian

Yeah, that would make a terrible race route; I just though it was an interesting factoid.

Dan
Guest
Dan

Ah I was hoping someone would do a feasibility study with my data. If I had the inner and outer curb radii we could calculate the minimum and maximum number of laps for a true circle century.

Ted Timmons (Contributor)
Editor

I was thinking a good wheel sensor will come in handy, since GPS is likely to cut the corner randomly.

Todd Boulanger
Guest
Todd Boulanger

A perfect Stava recorded ride!

Mark S
Guest
Mark S

Sounds like a good choice for the Fat Cyclist’s 100 Miles of Nowhere event.

http://www.fatcyclist.com/page/14/

Tom Hardy
Guest
Tom Hardy

At least riding around the circle there would be no stop signs to have to stop for. Only for the autos that wanted to enter. Then only if they could find or make an opening. Remember 163.163!

RushHourAlleycat
Guest

There are also suitable routes to navigate all of ladds without using the rotary for those hours. This is going to be fun. We are making flyers to support our friends who thought up and organized this race.!

Ian
Guest
Ian

Did you mean to reply to a different comment?

K'Tesh
Guest
K'Tesh

I was getting dizzy just looking at the aerial photo.