Adon is a good matchup IMO. Unless you let him in your face and start neutral jumping in your anti air blind spot right outside b.MP range, or if he gets you knocked down.
EX Zonk causes his DP to whiff. Zonk of any kind or an early far HK or early far HP beat any of his jaguar tooth nonsense. His jaguar kick stuff requires quick reactions but generally loses to either b.MP or slide. The hard part is getting around his far MK and the fact you can’t really use focus in the match up which is so key for Cody to get in against a character like adon who has good walk speed and reach. Adon’s close HK can beat pretty much every jump in from Cody though, and Adon has a 3F c.LP and a 4F (FOURTY DAMAGE) c.LK that he can link out of. So you gotta be careful.
I think it is 5.5 - 4.5 for Cody but only if your reactions are seriously on point and your blocking on knockdown is on point.
Then again I also think that Zangief is a bad matchup for Cody and most people think it’s the other way. (I think gief’s who just try and rush Cody down with greenhand/lariet/jumping HP are a 6-4 for Cody. But a Patient gief who walks him down and only throws out far s.MP the occasional sweep/far LK and knows his LP SPD range perfectly and plays the match super lame/patient it’s 5.5 - 4.5 or even 6-4 for Gief.)
Seth is 6-4 for Seth def a bad matchup but not one of Cody’s worst only due to Seth’s lower stun/health and slower normals for frame traps. Abel… abel is weird. I think it’s in abels favor but only like 5.5 - 4.5. Of course that is only when it’s neutral and when Cody has meter. Cody no meter + knockdown instant 8-2 for Abels favor. Cody meter + knockdown mmm… 7-3 abels favor, it’s a 50/50 game and Cody has to spend meter for a CHANCE to guess right.
Rufus is IMO one of Cody’s worst matchups, not Cammy or E Ryu or Akuma bad but it’s bad. The only saving grace is that Rufus needs meter to get Cody away from him. But Cody’s anti airs are too slow for Rufus’s instant dive kick shenanigans and Rufus’s tic throw game is the best in the business and does more damage. Plus rufus has more health, better comeback potential with meterless/easy to land anywhere ultra 1 combos and has some pretty damn good ground and air normals. Momochi showed that a footsies/whiff punishing/more patient rufus who baits is incredibly hard for Cody when he fought Justin Wong right after beating Ricky Ortiz who played extremely aggressively.