Match-up numbers are a approximation of a percentage of a player winning (or losing) a matchup. Using one match, in my view, to judge a match-up would be incorrect. As Saucy Jack has stated in the past, it's like flipping a coin 3 times and getting heads all 3 times despite the percentage of flipping heads or tails is 50/50.
Hypothetically, the more matches the match up is played at the highest level, the more closer the match up number would result. (ex. flipping a coin 1000 times would produce a result closer to 50/50 as opposed to flipping it 3 times). Of course this is hypothetical, since the term "highest level of play" is extremely subjective and not every top player plays to their fullest potential or punishes everything. There's also a large number of variables involved as well, but I won't get in to.
In revolver's case, him winning one match would not change the matchup. That one match he won could be the only match he would win, and if the set continued, lose 9 straight against Relaxstate. In this case it was a first to 3. If relaxed state and revolver played to 100 or 1,000 you would probably get a more accurate number (which is somewhat impossible due to mental fatigue, physical fatigue, thereby reducing the level of play). Hence why match-up numbers are an approximation.
Personally I'd rather focus on match-up criteria and respective gameplans for each character than match-up numbers, but that's my two cents.
TL;DR Lex vs. Zod matchup can't be determined by only a first to 3 match. Matchup looks awful is likely a 9-1 at the highest level of play. "Highest level of play" is somewhat subjective, but I would assume that would be Zod with perfect IAZB throughout the match, which rarely occurs in tournament matches. Good shit to Revolver either way
