Runs already lined up....

Runs and challenges I have completed in the past include marathons (half and full), bike rides and triathlons in the following cities:

London
Athens
Newcastle
Orlando
Las Vegas
London - Paris bike ride
London - Brighton bike ride

and here are the events I am currently signed up for:

1) 20km run (Brussels)
2) Escape from Alcatraz triathlon (San Francisco)
3) The Great Drag Race (London)
5) Helsinki half marathon
6) Stockholm half marathon
7) Ealing half marathon (London)
8) Windsor half marathon
9) Great south run (Portsmouth)
10) Paris half marathon
11) Trek across Jordan (to Petra and Dead sea)
12) Mount Kilimanjaro climb

So ones that I was thinking of are:

1) The Color Run in Washington DC....
2) The Dallas half marathon

Any other challenges and tips you think I should add to the list...suggestions welcome!!