There are lot of posts about issues in getting the race recognized. My race 3 shows in Companion, Strava and I even got Zwift “thank you” mail, anyway I am not in the results nor I got the tick for completion. Opened a support ticket 6 days ago, no answer yet.
There is who says it’s connectivity, other says “it happens in large events”, however I can’t see any answer from Zwift.
Here is an example of a similar problem: My Tour 4 All Stage 5 Zwift ride won't display - #17 by Marco_Massara_ITA
Anyway you can find a lot more here or even on Zwift Power forums… the first who get an answer please inform the others… meanwhile I stopped doing big events (or small)…