As best we can tell so far, it should be DR order, but it's bugged when there are players with DR of C or D in the field. See here. I've been watching it since then, and haven't seen a race where that didn't seem correct. The best time for checking was around when I crossed from DR=B to DR=A, because then I could assume I was higher than all the Bs and lower than all the As - at that point I could predict what number I had every time, as long as there were no DR=D in the race. Now I'm a bit higher up A, I don't know whether the other As are above or below me. But, as long as there are no DR=D in the race, I can tell how many are above me by my door number That's the method I use, because I can't make it out on the intro screen, behind all the text. I suspect there's no direct correlation, although obviously it's somewhat related. It's difficult to guess at exactly how DR gain/loss is calculated because we don't know the exact DR of everyone in the field. I've been watching out for any cases where having DR=C or D drivers in the race affects DR gain/loss, but haven't seen anything obvious yet - my impression so far is that the bug that affects door numbers doesn't affect DR scoring. I think (in some cases at least) it would be fairly obvious if it was bugged - one race I'd quali'd 4th and that was what my door number should've been but there were 7 or 8 DR=C in the race, so I had a much higher door number. I think I finished 3rd. If it was based on the (bugged) door number at all then I would've had a massive boost to my DR, but I didn't. In fact I scored better in a similar race with stronger competition below me (fewer DR=C, more DR=B), which makes me think it's a completely separate calculation, possibly/probably ELO based.