| Sundayz vs Hwoarang | 55–37 | 59.78% |
| Sundayz vs Jin | 45–46 | 49.45% |
| Sundayz vs Bryan | 50–37 | 57.47% |
| Sundayz vs Reina | 40–34 | 54.05% |
| Sundayz vs Kazuya | 42–25 | 62.69% |
| Sundayz vs King | 42–22 | 65.62% |
| Sundayz vs Law | 31–27 | 53.45% |
| Sundayz vs Steve | 38–14 | 73.08% |
| Sundayz vs Lee | 24–25 | 48.98% |
| Sundayz vs Dragunov | 29–18 | 61.70% |
| Sundayz vs Devil Jin | 23–19 | 54.76% |
| Sundayz vs Yoshimitsu | 21–18 | 53.85% |
| Sundayz vs Asuka | 15–24 | 38.46% |
| Sundayz vs Azucena | 22–16 | 57.89% |
| Sundayz vs Fahkumram | 17–18 | 48.57% |
| Sundayz vs Paul | 13–19 | 40.62% |
| Sundayz vs Lili | 13–18 | 41.94% |
| Sundayz vs Feng | 18–9 | 66.67% |
| Sundayz vs Leroy | 15–11 | 57.69% |
| Sundayz vs Claudio | 6–19 | 24.00% |
| Sundayz vs Jack-8 | 15–9 | 62.50% |
| Sundayz vs Victor | 9–13 | 40.91% |
| Sundayz vs Alisa | 11–9 | 55.00% |
| Sundayz vs Nina | 14–6 | 70.00% |
| Sundayz vs Xiaoyu | 8–10 | 44.44% |
| Sundayz vs Lars | 5–12 | 29.41% |
| Sundayz vs Kuma | 3–13 | 18.75% |
| Sundayz vs Eddy | 4–12 | 25.00% |
| Sundayz vs Leo | 5–10 | 33.33% |
| Sundayz vs Jun | 9–2 | 81.82% |
| Sundayz vs Raven | 9–2 | 81.82% |
| Sundayz vs Lidia | 3–2 | 60.00% |
| Sundayz vs Zafina | 0–4 | 0.00% |
| Sundayz vs Shaheen | 2–1 | 66.67% |
| Sundayz vs Anna | 0–3 | 0.00% |
| Sundayz vs Heihachi | 2–0 | 100.00% |
| Sundayz 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.