| Justsaac vs King | 36–13 | 73.47% |
| Justsaac vs Kazuya | 28–18 | 60.87% |
| Justsaac vs Heihachi | 21–16 | 56.76% |
| Justsaac vs Law | 24–11 | 68.57% |
| Justsaac vs Armor King | 14–20 | 41.18% |
| Justsaac vs Reina | 18–15 | 54.55% |
| Justsaac vs Jin | 27–5 | 84.38% |
| Justsaac vs Yoshimitsu | 12–19 | 38.71% |
| Justsaac vs Steve | 18–11 | 62.07% |
| Justsaac vs Hwoarang | 18–8 | 69.23% |
| Justsaac vs Xiaoyu | 18–7 | 72.00% |
| Justsaac vs Bryan | 14–10 | 58.33% |
| Justsaac vs Eddy | 16–8 | 66.67% |
| Justsaac vs Dragunov | 13–7 | 65.00% |
| Justsaac vs Victor | 12–6 | 66.67% |
| Justsaac vs Paul | 11–6 | 64.71% |
| Justsaac vs Miary Zo | 7–10 | 41.18% |
| Justsaac vs Asuka | 13–3 | 81.25% |
| Justsaac vs Lili | 11–5 | 68.75% |
| Justsaac vs Lars | 9–7 | 56.25% |
| Justsaac vs Leroy | 10–6 | 62.50% |
| Justsaac vs Jun | 11–5 | 68.75% |
| Justsaac vs Zafina | 11–4 | 73.33% |
| Justsaac vs Azucena | 9–5 | 64.29% |
| Justsaac vs Fahkumram | 7–7 | 50.00% |
| Justsaac vs Lee | 9–4 | 69.23% |
| Justsaac vs Raven | 9–4 | 69.23% |
| Justsaac vs Feng | 6–6 | 50.00% |
| Justsaac vs Alisa | 7–5 | 58.33% |
| Justsaac vs Lidia | 9–3 | 75.00% |
| Justsaac vs Jack-8 | 4–6 | 40.00% |
| Justsaac vs Devil Jin | 5–5 | 50.00% |
| Justsaac vs Nina | 2–7 | 22.22% |
| Justsaac vs Clive | 4–1 | 80.00% |
| Justsaac vs Claudio | 2–2 | 50.00% |
| Justsaac vs Panda | 2–2 | 50.00% |
| Justsaac vs Anna | 2–2 | 50.00% |
| Justsaac vs Leo | 3–0 | 100.00% |
| Justsaac vs Shaheen | 3–0 | 100.00% |
| Justsaac vs Kuma | 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.