| Iiooooooo vs Jin | 62–79 | 43.97% |
| Iiooooooo vs King | 47–72 | 39.50% |
| Iiooooooo vs Hwoarang | 58–51 | 53.21% |
| Iiooooooo vs Law | 56–50 | 52.83% |
| Iiooooooo vs Bryan | 40–48 | 45.45% |
| Iiooooooo vs Steve | 37–34 | 52.11% |
| Iiooooooo vs Heihachi | 19–43 | 30.65% |
| Iiooooooo vs Kazuya | 19–40 | 32.20% |
| Iiooooooo vs Eddy | 26–26 | 50.00% |
| Iiooooooo vs Dragunov | 22–27 | 44.90% |
| Iiooooooo vs Yoshimitsu | 21–22 | 48.84% |
| Iiooooooo vs Asuka | 22–18 | 55.00% |
| Iiooooooo vs Reina | 19–21 | 47.50% |
| Iiooooooo vs Paul | 11–23 | 32.35% |
| Iiooooooo vs Nina | 7–26 | 21.21% |
| Iiooooooo vs Fahkumram | 14–19 | 42.42% |
| Iiooooooo vs Jun | 10–21 | 32.26% |
| Iiooooooo vs Lili | 16–13 | 55.17% |
| Iiooooooo vs Lars | 13–14 | 48.15% |
| Iiooooooo vs Victor | 9–18 | 33.33% |
| Iiooooooo vs Lee | 14–12 | 53.85% |
| Iiooooooo vs Raven | 11–14 | 44.00% |
| Iiooooooo vs Lidia | 9–16 | 36.00% |
| Iiooooooo vs Armor King | 7–18 | 28.00% |
| Iiooooooo vs Clive | 13–10 | 56.52% |
| Iiooooooo vs Xiaoyu | 11–11 | 50.00% |
| Iiooooooo vs Devil Jin | 11–11 | 50.00% |
| Iiooooooo vs Alisa | 8–11 | 42.11% |
| Iiooooooo vs Jack-8 | 6–12 | 33.33% |
| Iiooooooo vs Anna | 8–9 | 47.06% |
| Iiooooooo vs Miary Zo | 5–9 | 35.71% |
| Iiooooooo vs Azucena | 7–5 | 58.33% |
| Iiooooooo vs Shaheen | 7–4 | 63.64% |
| Iiooooooo vs Leroy | 5–6 | 45.45% |
| Iiooooooo vs Feng | 5–5 | 50.00% |
| Iiooooooo vs Leo | 1–8 | 11.11% |
| Iiooooooo vs Claudio | 0–6 | 0.00% |
| Iiooooooo vs Kuma | 2–3 | 40.00% |
| Iiooooooo vs Zafina | 1–2 | 33.33% |
| Iiooooooo vs Panda | 0–1 | 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.