| ItsOni vs King | 30–39 | 43.48% |
| ItsOni vs Reina | 39–27 | 59.09% |
| ItsOni vs Jin | 21–37 | 36.21% |
| ItsOni vs Kazuya | 23–34 | 40.35% |
| ItsOni vs Steve | 29–26 | 52.73% |
| ItsOni vs Hwoarang | 28–21 | 57.14% |
| ItsOni vs Law | 19–22 | 46.34% |
| ItsOni vs Bryan | 23–17 | 57.50% |
| ItsOni vs Asuka | 19–21 | 47.50% |
| ItsOni vs Eddy | 18–20 | 47.37% |
| ItsOni vs Dragunov | 13–22 | 37.14% |
| ItsOni vs Victor | 16–16 | 50.00% |
| ItsOni vs Lidia | 10–19 | 34.48% |
| ItsOni vs Yoshimitsu | 8–20 | 28.57% |
| ItsOni vs Lars | 7–20 | 25.93% |
| ItsOni vs Jun | 17–10 | 62.96% |
| ItsOni vs Leroy | 10–16 | 38.46% |
| ItsOni vs Nina | 8–16 | 33.33% |
| ItsOni vs Azucena | 13–11 | 54.17% |
| ItsOni vs Heihachi | 14–10 | 58.33% |
| ItsOni vs Devil Jin | 10–13 | 43.48% |
| ItsOni vs Leo | 12–10 | 54.55% |
| ItsOni vs Feng | 8–11 | 42.11% |
| ItsOni vs Xiaoyu | 9–9 | 50.00% |
| ItsOni vs Lee | 7–11 | 38.89% |
| ItsOni vs Lili | 6–11 | 35.29% |
| ItsOni vs Claudio | 9–8 | 52.94% |
| ItsOni vs Alisa | 7–9 | 43.75% |
| ItsOni vs Paul | 5–10 | 33.33% |
| ItsOni vs Raven | 6–7 | 46.15% |
| ItsOni vs Jack-8 | 6–6 | 50.00% |
| ItsOni vs Armor King | 7–5 | 58.33% |
| ItsOni vs Shaheen | 4–5 | 44.44% |
| ItsOni vs Clive | 6–2 | 75.00% |
| ItsOni vs Kuma | 3–4 | 42.86% |
| ItsOni vs Zafina | 5–2 | 71.43% |
| ItsOni vs Fahkumram | 1–3 | 25.00% |
| ItsOni vs Panda | 2–0 | 100.00% |
| ItsOni vs Miary Zo | 1–1 | 50.00% |
| ItsOni vs Anna | 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.