Originally dual rated time controls were G/30 to G/60. Now G/25, d5 is dual rated as that time control is considered equivalent to G/30, d0. So if that is the case then why is G/60, d5 [equivalent of G/65,d0] a dual rated time control?? Shouldn’t it be G/25, d5 up to & including G/55, d5?
This might have affected a tournament I was a TD of recently, except that I made an error in the submission [& will call USCF tomorrow to fix]. The time control used for the event was G/60,d10 and this is not a dual rated time control.
Be that as it may, G/61, d5 will get you out of the dual-rated category, and that’s what I’m using at my club for our regular-rated control. I polled my players about G/60-ish events: “do you care whether this is dual-rated or regular-rated?” The response was 50/50. And so we remain G/61, d5.
Because the delegates said so. I would hope that answer is as unsatisfactory as having G/25 (with an analog clock) regular rated, but I did not vote in favor of this change.
Until recent years, the delay time was not considered one of the criteria for categorizing an event as regular, dual, or quick. So if G/30 to G/60 was considered dual, then that remained true even if a delay was added, e.g. G/30 d/5 through G/60 d/5.
But then another rule was changed, eliminating the organizer’s right to shorten, without advance notice, the main time by 5 minutes in any game in which a 5-second delay was in effect. Several organizers (notably Steve Immitt) objected, as they wanted G/30 (“shortened” to G/25 d/5) to remain dual-ratable.
So the criteria for categorizing an event were changed. The new criteria are based on the main time in minutes, plus the delay time in seconds, rather than on the main time alone.
But nothing was done to change the other end of the spectrum. The upper boundary remained at G/60 (now with d/5).
So, two apparently logical steps were taken, one at a time, resulting in a final definition that may not seem entirely logical, had both steps been taken simultaneously.