I don't have an IM streak, but I have an outdoor triathlon streak going back to 1983 which includes at least 10 years of IM events. I did an indoor tri in Feb. (pool swim, stationary bike, run on indoor track). I was planning to post a similar question about tri streaks later in the year if it looked more certain that I won't be able to do an outdoor tri this year within a reasonable drive from Ohio.