I have always said that I hate dual rated events. Every club meeting where we discuss planning events, I advocate for g29--pure quick, or longer times that are pure regular. I often claim I do not play dual events.
Ironically, my performance averages in dual rated are better than in blitz, straight quick, and regular.
I do believe, however, 10 minute is blitz.
Not on this site. Not on Lichess. Rapid both places.
OTB, 10 minute is blitz.
My phrasing was awful. I meant that I believe it should be blitz online.
Gotcha!
I like that it is not, but I respect the views of those who disagree. Until just over a year ago, I did not play 10 0 on this site. I played it quite a bit on Lichess, though. Ten minute games are enough different from three minute games that I did not want to play both if they were rated the same.
Many years ago, I played 2 12 on ICC. That was blitz, too, but it no longer feels that way to me.
How about 10|0 and 45|45 then? Are those similar enough?
Nope. That's the benefit of a third category: classical, which Lichess uses.
In the US, our chess federation rates blitz, quick, and regular. Some time controls are dual rated.
Total playing time for each player 5-10 minutes is blitz. More than 10 minutes and less than 30 is quick only. From 30 to 65 minutes is dual rated--quick and regular. More than 65 minutes is regular. As I understand the formula, 25+25 would be regarded as 50 minutes total time per player and would be dual rated. 45+45 would be considered 90 minutes, and would be rated as regular. On Lichess that TC is classical.
Hehe, I know, I am just joking around because 10|0 and 45|45 is as different as night and day. Hopefully they will implement classical rating eventually, as it was stated a few months ago.