| C4-621 vs Reina | 25–40 | 38.46% |
| C4-621 vs King | 21–41 | 33.87% |
| C4-621 vs Jin | 13–40 | 24.53% |
| C4-621 vs Steve | 18–34 | 34.62% |
| C4-621 vs Hwoarang | 8–40 | 16.67% |
| C4-621 vs Kazuya | 19–29 | 39.58% |
| C4-621 vs Yoshimitsu | 12–33 | 26.67% |
| C4-621 vs Law | 4–37 | 9.76% |
| C4-621 vs Lidia | 11–29 | 27.50% |
| C4-621 vs Lili | 16–22 | 42.11% |
| C4-621 vs Dragunov | 6–32 | 15.79% |
| C4-621 vs Victor | 11–27 | 28.95% |
| C4-621 vs Paul | 8–26 | 23.53% |
| C4-621 vs Bryan | 15–19 | 44.12% |
| C4-621 vs Azucena | 16–15 | 51.61% |
| C4-621 vs Eddy | 4–26 | 13.33% |
| C4-621 vs Jun | 6–22 | 21.43% |
| C4-621 vs Heihachi | 8–19 | 29.63% |
| C4-621 vs Kuma | 5–18 | 21.74% |
| C4-621 vs Asuka | 6–16 | 27.27% |
| C4-621 vs Lee | 8–14 | 36.36% |
| C4-621 vs Leroy | 4–18 | 18.18% |
| C4-621 vs Raven | 6–16 | 27.27% |
| C4-621 vs Alisa | 6–15 | 28.57% |
| C4-621 vs Shaheen | 10–11 | 47.62% |
| C4-621 vs Nina | 4–16 | 20.00% |
| C4-621 vs Clive | 1–17 | 5.56% |
| C4-621 vs Xiaoyu | 3–13 | 18.75% |
| C4-621 vs Leo | 4–12 | 25.00% |
| C4-621 vs Lars | 1–14 | 6.67% |
| C4-621 vs Zafina | 8–7 | 53.33% |
| C4-621 vs Claudio | 2–12 | 14.29% |
| C4-621 vs Jack-8 | 1–12 | 7.69% |
| C4-621 vs Feng | 3–9 | 25.00% |
| C4-621 vs Anna | 3–4 | 42.86% |
| C4-621 vs Fahkumram | 1–5 | 16.67% |
| C4-621 vs Devil Jin | 1–3 | 25.00% |
| C4-621 vs Panda | 1–3 | 25.00% |
| C4-621 vs Armor King | 1–1 | 50.00% |
| C4-621 vs Miary Zo | 2–0 | 100.00% |
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.