| Iucundus vs King | 53–60 | 46.90% |
| Iucundus vs Law | 45–42 | 51.72% |
| Iucundus vs Steve | 40–47 | 45.98% |
| Iucundus vs Jin | 42–44 | 48.84% |
| Iucundus vs Kazuya | 40–41 | 49.38% |
| Iucundus vs Jun | 26–40 | 39.39% |
| Iucundus vs Eddy | 22–44 | 33.33% |
| Iucundus vs Hwoarang | 33–32 | 50.77% |
| Iucundus vs Reina | 31–34 | 47.69% |
| Iucundus vs Heihachi | 27–38 | 41.54% |
| Iucundus vs Dragunov | 32–29 | 52.46% |
| Iucundus vs Asuka | 28–31 | 47.46% |
| Iucundus vs Bryan | 26–32 | 44.83% |
| Iucundus vs Fahkumram | 28–27 | 50.91% |
| Iucundus vs Azucena | 26–26 | 50.00% |
| Iucundus vs Lee | 27–23 | 54.00% |
| Iucundus vs Yoshimitsu | 23–24 | 48.94% |
| Iucundus vs Lili | 21–26 | 44.68% |
| Iucundus vs Armor King | 20–24 | 45.45% |
| Iucundus vs Paul | 16–26 | 38.10% |
| Iucundus vs Victor | 16–25 | 39.02% |
| Iucundus vs Miary Zo | 19–21 | 47.50% |
| Iucundus vs Lidia | 11–27 | 28.95% |
| Iucundus vs Nina | 16–21 | 43.24% |
| Iucundus vs Xiaoyu | 16–20 | 44.44% |
| Iucundus vs Lars | 14–22 | 38.89% |
| Iucundus vs Leroy | 17–15 | 53.12% |
| Iucundus vs Feng | 13–17 | 43.33% |
| Iucundus vs Jack-8 | 16–13 | 55.17% |
| Iucundus vs Devil Jin | 8–19 | 29.63% |
| Iucundus vs Leo | 6–18 | 25.00% |
| Iucundus vs Alisa | 8–13 | 38.10% |
| Iucundus vs Clive | 8–13 | 38.10% |
| Iucundus vs Shaheen | 5–13 | 27.78% |
| Iucundus vs Anna | 7–11 | 38.89% |
| Iucundus vs Claudio | 7–10 | 41.18% |
| Iucundus vs Raven | 5–12 | 29.41% |
| Iucundus vs Kuma | 2–12 | 14.29% |
| Iucundus vs Zafina | 4–8 | 33.33% |
| Iucundus vs Panda | 1–2 | 33.33% |
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.