| Ark621 vs Reina | 12–10 | 54.55% |
| Ark621 vs Paul | 9–12 | 42.86% |
| Ark621 vs Lili | 4–15 | 21.05% |
| Ark621 vs Dragunov | 7–11 | 38.89% |
| Ark621 vs King | 5–12 | 29.41% |
| Ark621 vs Kazuya | 7–10 | 41.18% |
| Ark621 vs Asuka | 5–5 | 50.00% |
| Ark621 vs Victor | 4–6 | 40.00% |
| Ark621 vs Nina | 3–6 | 33.33% |
| Ark621 vs Steve | 2–6 | 25.00% |
| Ark621 vs Yoshimitsu | 3–4 | 42.86% |
| Ark621 vs Jin | 1–6 | 14.29% |
| Ark621 vs Devil Jin | 0–7 | 0.00% |
| Ark621 vs Leo | 3–4 | 42.86% |
| Ark621 vs Azucena | 4–3 | 57.14% |
| Ark621 vs Law | 2–4 | 33.33% |
| Ark621 vs Hwoarang | 2–4 | 33.33% |
| Ark621 vs Claudio | 2–3 | 40.00% |
| Ark621 vs Bryan | 3–1 | 75.00% |
| Ark621 vs Feng | 0–4 | 0.00% |
| Ark621 vs Leroy | 3–0 | 100.00% |
| Ark621 vs Jun | 0–3 | 0.00% |
| Ark621 vs Xiaoyu | 1–1 | 50.00% |
| Ark621 vs Lee | 0–2 | 0.00% |
| Ark621 vs Kuma | 0–2 | 0.00% |
| Ark621 vs Zafina | 0–2 | 0.00% |
| Ark621 vs Jack-8 | 0–1 | 0.00% |
| Ark621 vs Alisa | 0–1 | 0.00% |
| Ark621 vs Panda | 0–1 | 0.00% |
| Ark621 vs Raven | 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.