| Ouroboros vs Kazuya | 274–349 | 43.98% |
| Ouroboros vs Jin | 273–315 | 46.43% |
| Ouroboros vs Heihachi | 223–289–1 | 43.55% |
| Ouroboros vs Reina | 231–246 | 48.43% |
| Ouroboros vs King | 178–254 | 41.20% |
| Ouroboros vs Bryan | 190–225 | 45.78% |
| Ouroboros vs Steve | 197–212 | 48.17% |
| Ouroboros vs Law | 184–180 | 50.55% |
| Ouroboros vs Hwoarang | 182–158 | 53.53% |
| Ouroboros vs Dragunov | 155–163 | 48.74% |
| Ouroboros vs Jun | 116–163 | 41.58% |
| Ouroboros vs Paul | 123–153 | 44.57% |
| Ouroboros vs Clive | 96–179 | 34.91% |
| Ouroboros vs Yoshimitsu | 103–142 | 42.04% |
| Ouroboros vs Eddy | 90–143 | 38.63% |
| Ouroboros vs Lili | 110–122 | 47.41% |
| Ouroboros vs Azucena | 77–136 | 36.15% |
| Ouroboros vs Fahkumram | 81–132 | 38.03% |
| Ouroboros vs Lee | 91–112 | 44.83% |
| Ouroboros vs Asuka | 83–114 | 42.13% |
| Ouroboros vs Nina | 93–101 | 47.94% |
| Ouroboros vs Lars | 83–104 | 44.39% |
| Ouroboros vs Lidia | 68–116 | 36.96% |
| Ouroboros vs Devil Jin | 71–110 | 39.23% |
| Ouroboros vs Victor | 55–114 | 32.54% |
| Ouroboros vs Feng | 70–81 | 46.36% |
| Ouroboros vs Anna | 62–80 | 43.66% |
| Ouroboros vs Xiaoyu | 61–72 | 45.86% |
| Ouroboros vs Jack-8 | 50–71 | 41.32% |
| Ouroboros vs Leroy | 50–61 | 45.05% |
| Ouroboros vs Claudio | 50–55 | 47.62% |
| Ouroboros vs Leo | 47–55 | 46.08% |
| Ouroboros vs Alisa | 33–68 | 32.67% |
| Ouroboros vs Kuma | 37–58 | 38.95% |
| Ouroboros vs Zafina | 32–54 | 37.21% |
| Ouroboros vs Raven | 40–44 | 47.62% |
| Ouroboros vs Shaheen | 33–31 | 51.56% |
| Ouroboros vs Armor King | 12–16 | 42.86% |
| Ouroboros vs Panda | 7–13 | 35.00% |
| Ouroboros vs Miary Zo | 0–3 | 0.00% |
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.