iRacing's 2020 Season 4 ran from Sept 15 through Dec 7. Season 1 of 2021 will open on December 15, 2020.
I completed what's considered a full season of ARCA -- there were 12 races and I ran 9 of them (completing 8 or more is a full season). I finished 23rd out of 98 drivers in my division (Division 6) that ran the full season. I got my first and only (so far) win in my iRacing career in an ARCA race at Texas. This is the only series where I was ever competitive, where I could try to win in addition to trying to just finish (not crash).
Nascar Legends 1987
I ran only 2 races in this series, but they were fun, and I'd like to try it some more. The drivers are very skilled, especially in the upper splits.
NTT Indy Car Ovals
One reason I wanted to get my Class C license was to try this series. I only entered one race. Situations develop so fast and cars change lanes and lines so quickly in Indy Car oval races that it's a completely different thing, and I'm not sure I'm ready for it.
Formula Renault 2.0 and Indy Pro
These are both good cars for me to try to improve my driving and racing skills, and I hope to run more races in both next season. I ran each one 3 times in this season, basically with one OK, one poor, and one terrible run in each. These are non-fixed setup series, and I don't have either the time or skill to set up the cars, but now I have setups that I get as part of a Virtual Racing School subscription, so that might help going forward.
Skip Barber and USF 2000
I didn't run the Skippy nearly as much as I thought I would when the season started, partly because the Indy Pro caught my attention. The USF 2000 I also ran sparsely just because there were other races taking time. These are both good cars, fixed setups (well, the Skippy is not fixed, but there's not much on it to change), and would be good for me, but I'll have to choose between these entry-level cars and those next-level-up ones (the FR 2.0 and Indy Pro)
ARCA Race at Michigan: I ran well in this race, starting 5th and finishing 3rd. I was in 2nd for awhile, but never got close to the leader. The car behind me for most of the race also ran a good race, and we passed one another a couple times at the end, with me making the last mistake which allowed him to finish 2nd ahead of me in 3rd. But it was a good fun race.
Indy Pro at Watkins Glen: I practiced this quite a bit, and got to be almost competitive -- I was running in the high-1:41's, but you really need to be in the mid-1:40's to run well in a race. I ended up never entering.
I never entered any races this week. Family activities during the holiday week kept me from getting in enough practice early in the week to be ready for any of the races.
NASCAR Legends Race at Atlanta: I was doing well in this race, running in the middle of the field, but I hit the wall just before Turn 1 about a third of the way through the race, and retired from the race. I learned something from my wreck: I brought out the caution flag, and limped back to the pits in my damaged car, and it turns out that penalized a bunch of other drivers because as long as my car is moving they have to stay behind me on a yellow flag. Several drivers got black flagged. I should have avoided that by just hitting the "reset" button and giving up instead of limping back to the pits.
NTT Indy Car Race at Homestead: I practiced a lot for my first-ever Indy Car race. But when I got in the race, the car seemed to drive much differently than it had in practice, and I never figured out why. It might have been some damage to the car from light contact I had early in the race (there's probably not really any such thing as "light contact" in an Indy car). I finished at the back.
NASCAR Legends Race at Michigan (Sunday Nov 15): Replay of the live event (60 mins) I entered this race again because I learned the secret to going fast at Michigan by watching another driver in the replay of my first race. The secret is to set brake bias as far to the rear as possible, and then use the brakes and not the steering wheel to get the car to turn into Turn 1. In this race, I was the lowest-ranked driver in the top (most competitive) split (the race had to be divided into two groups, and I was in the higher one). So I did not expect to finish in the top at all. But the race was challenging and exciting, I spent almost no time just driving around by myself.
NASCAR Legends Race at Michigan (Saturday Nov 14): Replay of the live event (30 mins) This was my first time entering this series, it went pretty well. Often there are caution flags and drivers can come into the pits and get new tires. In this race there was only one caution early in the race, and no one replaced tires because you only have one extra set for the race, and people assumed they might want them later. The race went green the rest of the way, and I'm easier on tires than most people, so in the last five laps I was catching the next few people at a furious rate. I ended up finishing 3rd, passing a couple of people in the last few laps whose tires had completely gone away and made their cars difficult to steer at all.
ARCA Race at Martinsville (Saturday Nov 14): Replay of the live event (20 mins) This race went well for me, only one incident right near the start, there was somewhat of a mess in front of me and I hit the car ahead of me and spun him. I haven't looked at the replay, but at the time it didn't seem very avoidable. I ended up finishing 3rd.
USF 2000 Race at Laguna Seca (Saturday Nov 14): Replay of the live event (20 mins) This race went well for me. Since I did terribly in my last two Indy Car-style starts, and in both cases went off track and in both cases caused someone to get a black flag for passing me at the start, I skipped qualifying and started at the back. I started 16th in a field of 17, and finished 5th, with no incidents.
USF 2000 Race at Laguna Seca (Friday Nov 13): Replay of the live stream (50 mins, 11 lap race, race starts at 30:55) This was a terrible race, and I missed the final sharp corner right before the race start and went off track yet again at the green flag, giving the car behind me a black flag (because he quite reasonably started racing on green, while I was off track). And then I went off the track 4 other times in the race. Others had a bad day too -- one guy asked another on the radio, "Where did you go off?" [meaning, off the track] and the other driver answered, "Everywhere." This was one to forget.
Indy Pro Race at Mid-Ohio (Thursday Nov 12): Replay of the live stream (40 mins, 26 lap race) I finished 3rd. I got confused as the pace car pulled off at the start of the race, I wasn't expecting the green flag (normally we run a full pace lap before green), and as a result the car behind me got a black flag (a stop-and-go penalty). The rest of the race was pretty good.
I finally won a race at Texas on Friday afternoon! I entered a Thursday morning race, and did not do very well, which I found frustrating because this is the type of track and race that I would really like to be good at. So I studied replays of other drivers, and practiced a bunch (by the time I entered the Friday race, I'd done over 300 laps at the track), and eventually I got pretty comfortable running here, and it led to a very nice result when I entered the Friday afternoon race.
I raced at Interlagos several weeks ago in the Skip Barber series. The Indy Pro car is much faster (about 24 seconds per lap faster) than the Skippy. I practiced a bunch here and wanted to do well, but I can't achieve a competitive time on this track yet. I'm running laps in the mid-1:32s and to be competitive you need to be able to run in the mid-1:29s or very low 1:30s pretty reliably. I entered one race here to try it out, and finished badly (but finished nevertheless). The interesting thing that happened in the race is that it was very foggy weather, visibility was not great, so that was a first for me in iRacing (in some series, weather is randomly generated at the start of the race session, and very rarely you'll get heavy fog).