| Arca vs Kazuya | 78–85 | 47.85% |
| Arca vs Jin | 72–70 | 50.70% |
| Arca vs Steve | 61–64 | 48.80% |
| Arca vs Heihachi | 55–68 | 44.72% |
| Arca vs Law | 45–71 | 38.79% |
| Arca vs Hwoarang | 35–57 | 38.04% |
| Arca vs Bryan | 39–50 | 43.82% |
| Arca vs King | 40–46 | 46.51% |
| Arca vs Armor King | 34–48 | 41.46% |
| Arca vs Reina | 31–44 | 41.33% |
| Arca vs Yoshimitsu | 29–44 | 39.73% |
| Arca vs Jun | 32–28 | 53.33% |
| Arca vs Dragunov | 34–23 | 59.65% |
| Arca vs Lili | 27–25 | 51.92% |
| Arca vs Azucena | 21–31 | 40.38% |
| Arca vs Lee | 22–27 | 44.90% |
| Arca vs Paul | 25–23 | 52.08% |
| Arca vs Asuka | 29–16 | 64.44% |
| Arca vs Lidia | 20–25 | 44.44% |
| Arca vs Devil Jin | 25–19 | 56.82% |
| Arca vs Victor | 18–21 | 46.15% |
| Arca vs Clive | 20–18 | 52.63% |
| Arca vs Feng | 13–24 | 35.14% |
| Arca vs Eddy | 15–22 | 40.54% |
| Arca vs Fahkumram | 13–21 | 38.24% |
| Arca vs Alisa | 14–18 | 43.75% |
| Arca vs Claudio | 17–13 | 56.67% |
| Arca vs Lars | 14–15 | 48.28% |
| Arca vs Xiaoyu | 12–15 | 44.44% |
| Arca vs Nina | 10–17 | 37.04% |
| Arca vs Anna | 10–16 | 38.46% |
| Arca vs Miary Zo | 15–11 | 57.69% |
| Arca vs Jack-8 | 15–10 | 60.00% |
| Arca vs Raven | 8–15 | 34.78% |
| Arca vs Zafina | 6–9 | 40.00% |
| Arca vs Leroy | 6–9 | 40.00% |
| Arca vs Leo | 8–3 | 72.73% |
| Arca vs Shaheen | 4–2 | 66.67% |
| Arca vs Kuma | 2–4 | 33.33% |
| Arca vs Panda | 1–3 | 25.00% |
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.