| IONAFOREVER vs King | 98–78 | 55.68% |
| IONAFOREVER vs Jin | 71–80 | 47.02% |
| IONAFOREVER vs Law | 66–73 | 47.48% |
| IONAFOREVER vs Kazuya | 79–57 | 58.09% |
| IONAFOREVER vs Steve | 70–58 | 54.69% |
| IONAFOREVER vs Bryan | 66–58 | 53.23% |
| IONAFOREVER vs Hwoarang | 49–62 | 44.14% |
| IONAFOREVER vs Reina | 64–47 | 57.66% |
| IONAFOREVER vs Yoshimitsu | 58–44 | 56.86% |
| IONAFOREVER vs Paul | 40–50 | 44.44% |
| IONAFOREVER vs Heihachi | 50–35–1 | 58.82% |
| IONAFOREVER vs Lee | 33–52 | 38.82% |
| IONAFOREVER vs Dragunov | 38–43 | 46.91% |
| IONAFOREVER vs Clive | 31–39 | 44.29% |
| IONAFOREVER vs Asuka | 33–35 | 48.53% |
| IONAFOREVER vs Eddy | 36–32 | 52.94% |
| IONAFOREVER vs Xiaoyu | 40–27 | 59.70% |
| IONAFOREVER vs Lili | 29–37 | 43.94% |
| IONAFOREVER vs Lars | 26–35 | 42.62% |
| IONAFOREVER vs Jun | 34–24 | 58.62% |
| IONAFOREVER vs Victor | 19–36 | 34.55% |
| IONAFOREVER vs Lidia | 26–29 | 47.27% |
| IONAFOREVER vs Jack-8 | 29–25 | 53.70% |
| IONAFOREVER vs Devil Jin | 24–28 | 46.15% |
| IONAFOREVER vs Feng | 23–29 | 44.23% |
| IONAFOREVER vs Azucena | 27–25 | 51.92% |
| IONAFOREVER vs Leroy | 27–22 | 55.10% |
| IONAFOREVER vs Leo | 25–21 | 54.35% |
| IONAFOREVER vs Nina | 16–30 | 34.78% |
| IONAFOREVER vs Zafina | 20–23 | 46.51% |
| IONAFOREVER vs Alisa | 19–22 | 46.34% |
| IONAFOREVER vs Raven | 14–24 | 36.84% |
| IONAFOREVER vs Anna | 19–8 | 70.37% |
| IONAFOREVER vs Shaheen | 9–15 | 37.50% |
| IONAFOREVER vs Kuma | 6–18 | 25.00% |
| IONAFOREVER vs Claudio | 10–13 | 43.48% |
| IONAFOREVER vs Armor King | 9–7 | 56.25% |
| IONAFOREVER vs Miary Zo | 9–7 | 56.25% |
| IONAFOREVER vs Panda | 8–7 | 53.33% |
| IONAFOREVER vs Fahkumram | 10–4 | 71.43% |
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.