| Justsumcasual vs King | 36–3 | 92.31% |
| Justsumcasual vs Hwoarang | 25–8 | 75.76% |
| Justsumcasual vs Kazuya | 18–5 | 78.26% |
| Justsumcasual vs Jin | 18–3 | 85.71% |
| Justsumcasual vs Steve | 17–3 | 85.00% |
| Justsumcasual vs Bryan | 14–1 | 93.33% |
| Justsumcasual vs Eddy | 12–3 | 80.00% |
| Justsumcasual vs Clive | 8–6 | 57.14% |
| Justsumcasual vs Law | 11–2 | 84.62% |
| Justsumcasual vs Raven | 11–2 | 84.62% |
| Justsumcasual vs Devil Jin | 10–2 | 83.33% |
| Justsumcasual vs Fahkumram | 12–0 | 100.00% |
| Justsumcasual vs Asuka | 11–0 | 100.00% |
| Justsumcasual vs Azucena | 10–1 | 90.91% |
| Justsumcasual vs Heihachi | 7–4 | 63.64% |
| Justsumcasual vs Reina | 9–1 | 90.00% |
| Justsumcasual vs Yoshimitsu | 6–3 | 66.67% |
| Justsumcasual vs Feng | 6–3 | 66.67% |
| Justsumcasual vs Lili | 8–1 | 88.89% |
| Justsumcasual vs Jun | 9–0 | 100.00% |
| Justsumcasual vs Victor | 6–3 | 66.67% |
| Justsumcasual vs Lidia | 9–0 | 100.00% |
| Justsumcasual vs Xiaoyu | 4–3 | 57.14% |
| Justsumcasual vs Dragunov | 7–0 | 100.00% |
| Justsumcasual vs Lars | 7–0 | 100.00% |
| Justsumcasual vs Alisa | 5–0 | 100.00% |
| Justsumcasual vs Nina | 4–1 | 80.00% |
| Justsumcasual vs Lee | 4–1 | 80.00% |
| Justsumcasual vs Armor King | 5–0 | 100.00% |
| Justsumcasual vs Claudio | 4–0 | 100.00% |
| Justsumcasual vs Miary Zo | 4–0 | 100.00% |
| Justsumcasual vs Paul | 3–0 | 100.00% |
| Justsumcasual vs Shaheen | 3–0 | 100.00% |
| Justsumcasual vs Zafina | 2–1 | 66.67% |
| Justsumcasual vs Leroy | 3–0 | 100.00% |
| Justsumcasual vs Jack-8 | 0–2 | 0.00% |
| Justsumcasual vs Leo | 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.