What's your favorite CO race and why?

Boulder Peak in July. Nothing like climbing Old Stage road to see what you're made of...

Crescent Moon has been a late season favorite, although it appears to be moving from CCSP to Aurora Res.

For running, the Bolder Boulder is a one of a kind experience.  Not necessarily a 10K for a PR, unless you get in one of the front waves.  I've done this race since Junior High School and it's very well organized and an epic type of experience.  Running into a packed Folsom stadium at the end of the race is very cool!  This one is always on my list of races to do.

For triathlons, there are a lot of great options up north if you are looking for smaller crowds.  Loveland has the Lake to Lake at the end of June, as well as a Sprint Triathlon at the end of July.  The sprint was my first triathlon, and I found it to be really well run. 

Another quality triathlon is the Greeley Triathlon (usually in early to mid June).  It's a very short sprint triathlon, and extremely well organized.  The local police department are very active with it, and they do a fantastic job with all aspects of the race.  The swim start is a "time trial" style with a 4-5 second pause between swimmers.  I wasn't sure if I would like that, but it was really nice, and rather picturesque watching the swimmers spread out across the lake.  Also, they did a ton of drawings during the awards ceremony, everything from restaurant gift certificates to sunglasses. 

I have only participated in one 70.3 in Colorado and was my 2nd 70.3 total and that was the Harvest Moon Long Race Festival.

I also do a tri-sprint in Lamar, Co in August support the home town. a good one for a first time entry fees are usually 12-15 dollars.

Bolder/Boulder is my fav.

50,000 runners

Water stops serving beer

donut stops.

Belly dancers.

Water slides

Down sides: Kind of expensive, 50,000 runners.

The Barkin Dog Du 2 weeks earlier is fun, Cherry Creek is a good place to ride a bike and run(not so much swimming...)

Looking at the Steamboat tri for my multi sport adventure.

Love the Highlands Ranch Tune Up in June to start things off.  Good course, challenging bike. 

Loveland Lake 2 Lake is one of the more scenic tris I've done.  Great course, especially the bike.

XTERRA Beaver Creek.  Toughest tri I've ever done and this was just the sprint distance.

Harvest Moon:  my first HIM.

Road... I say Loveland Lake 2 Lake. Well organized, fun event and a beautiful bike course makes for a great race.

Best off road is no longer on the calendar. The Buffalo Creek Xterra was awesome. I don't believe there is a better off road tri course in the country. It is rather sad that it went away.

I'm a big fan of Without Limits and Racing Underground as well.  Any event they put on is going to be well-organized, fairly priced, and a lot of fun.

I think my single favorite individual race is probably the Denver Triathlon.  There's been a lot of hype about swimming in Sloan's Lake... I've swam in there 3x now, and it's no worse than Cherry Creek Res.  The Denver Tri bike course is super fun- the downhill on Colfax heading east means you can really fly.  The run that starts and finishes @ Mile High-Invesco-Sports Authority Field is one of the most memorable I've done.  The race is also really well organized, and they have some really wonderful Brand Ambassadors (if I say so myself!)

I'm a big fan of Without Limits and Racing Underground as well.  Any event they put on is going to be well-organized, fairly priced, and a lot of fun.

I think my single favorite individual race is probably the Denver Triathlon.  There's been a lot of hype about swimming in Sloan's Lake... I've swam in there 3x now, and it's no worse than Cherry Creek Res.  The Denver Tri bike course is super fun- the downhill on Colfax heading east means you can really fly.  The run that starts and finishes @ Mile High-Invesco-Sports Authority Field is one of the most memorable I've done.  The race is also really well organized, and they have some really wonderful Brand Ambassadors (if I say so myself!)

It is a pretty big toss up for me. The Rattle Snake is great if you are doing the "Back to Back" Olympic & Sprint. Definitely an exuberance and some great race swag for doing it.  

The Denver Triathlon is awesome too with it being in Denver proper, the Mile High Stadium finish, plus the connection with the C Different foundation and now the USA Paratriathlon Race Series will make it pretty inspiring this year.  I just posted a active.com discount code for this race in a new thread a little while ago too.