| Arumaru vs Kazuya | 13–17 | 43.33% |
| Arumaru vs Steve | 13–10 | 56.52% |
| Arumaru vs King | 9–11 | 45.00% |
| Arumaru vs Dragunov | 12–7 | 63.16% |
| Arumaru vs Hwoarang | 6–10 | 37.50% |
| Arumaru vs Jin | 5–11 | 31.25% |
| Arumaru vs Reina | 8–7 | 53.33% |
| Arumaru vs Bryan | 6–8 | 42.86% |
| Arumaru vs Lili | 7–7 | 50.00% |
| Arumaru vs Nina | 4–9 | 30.77% |
| Arumaru vs Asuka | 4–8 | 33.33% |
| Arumaru vs Xiaoyu | 4–7 | 36.36% |
| Arumaru vs Yoshimitsu | 6–4 | 60.00% |
| Arumaru vs Paul | 4–5 | 44.44% |
| Arumaru vs Devil Jin | 5–4 | 55.56% |
| Arumaru vs Eddy | 1–8 | 11.11% |
| Arumaru vs Lee | 2–6 | 25.00% |
| Arumaru vs Jun | 3–5 | 37.50% |
| Arumaru vs Azucena | 6–2 | 75.00% |
| Arumaru vs Leo | 4–3 | 57.14% |
| Arumaru vs Lars | 2–5 | 28.57% |
| Arumaru vs Claudio | 2–4 | 33.33% |
| Arumaru vs Victor | 1–5 | 16.67% |
| Arumaru vs Law | 0–5 | 0.00% |
| Arumaru vs Panda | 1–4 | 20.00% |
| Arumaru vs Leroy | 3–2 | 60.00% |
| Arumaru vs Jack-8 | 2–2 | 50.00% |
| Arumaru vs Raven | 2–2 | 50.00% |
| Arumaru vs Feng | 0–2 | 0.00% |
| Arumaru vs Alisa | 0–2 | 0.00% |
| Arumaru vs Zafina | 0–2 | 0.00% |
| Arumaru vs Shaheen | 0–1 | 0.00% |
| Arumaru vs Kuma | 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.