| Nai Nai vs Jin | 287–248 | 53.64% |
| Nai Nai vs King | 289–235 | 55.15% |
| Nai Nai vs Kazuya | 229–245 | 48.31% |
| Nai Nai vs Bryan | 219–223 | 49.55% |
| Nai Nai vs Hwoarang | 200–216 | 48.08% |
| Nai Nai vs Dragunov | 170–187 | 47.62% |
| Nai Nai vs Reina | 180–176 | 50.56% |
| Nai Nai vs Paul | 192–162 | 54.24% |
| Nai Nai vs Yoshimitsu | 189–156 | 54.78% |
| Nai Nai vs Steve | 171–164 | 51.04% |
| Nai Nai vs Devil Jin | 188–143 | 56.80% |
| Nai Nai vs Law | 167–150 | 52.68% |
| Nai Nai vs Lee | 150–166 | 47.47% |
| Nai Nai vs Heihachi | 146–124 | 54.07% |
| Nai Nai vs Feng | 117–143 | 45.00% |
| Nai Nai vs Lars | 100–158 | 38.76% |
| Nai Nai vs Claudio | 132–120 | 52.38% |
| Nai Nai vs Asuka | 112–121 | 48.07% |
| Nai Nai vs Azucena | 138–93 | 59.74% |
| Nai Nai vs Lili | 95–135 | 41.30% |
| Nai Nai vs Victor | 125–94 | 57.08% |
| Nai Nai vs Jun | 110–97 | 53.14% |
| Nai Nai vs Zafina | 102–103 | 49.76% |
| Nai Nai vs Nina | 100–102 | 49.50% |
| Nai Nai vs Alisa | 93–101 | 47.94% |
| Nai Nai vs Clive | 95–93 | 50.53% |
| Nai Nai vs Jack-8 | 88–87 | 50.29% |
| Nai Nai vs Xiaoyu | 72–99 | 42.11% |
| Nai Nai vs Raven | 87–75 | 53.70% |
| Nai Nai vs Leo | 60–81 | 42.55% |
| Nai Nai vs Eddy | 58–77 | 42.96% |
| Nai Nai vs Kuma | 63–70 | 47.37% |
| Nai Nai vs Leroy | 53–66 | 44.54% |
| Nai Nai vs Lidia | 58–51 | 53.21% |
| Nai Nai vs Shaheen | 51–55 | 48.11% |
| Nai Nai vs Panda | 24–24 | 50.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.