| Isssaieah vs Law | 32–27 | 54.24% |
| Isssaieah vs Kazuya | 19–36 | 34.55% |
| Isssaieah vs King | 19–31 | 38.00% |
| Isssaieah vs Steve | 25–24 | 51.02% |
| Isssaieah vs Jin | 20–27 | 42.55% |
| Isssaieah vs Bryan | 22–17 | 56.41% |
| Isssaieah vs Heihachi | 17–19 | 47.22% |
| Isssaieah vs Asuka | 17–17 | 50.00% |
| Isssaieah vs Lili | 21–13 | 61.76% |
| Isssaieah vs Dragunov | 18–13 | 58.06% |
| Isssaieah vs Fahkumram | 16–15 | 51.61% |
| Isssaieah vs Hwoarang | 10–19 | 34.48% |
| Isssaieah vs Azucena | 11–18 | 37.93% |
| Isssaieah vs Paul | 13–15 | 46.43% |
| Isssaieah vs Reina | 14–14 | 50.00% |
| Isssaieah vs Miary Zo | 16–9 | 64.00% |
| Isssaieah vs Eddy | 14–10 | 58.33% |
| Isssaieah vs Clive | 12–11 | 52.17% |
| Isssaieah vs Anna | 12–11 | 52.17% |
| Isssaieah vs Raven | 13–9 | 59.09% |
| Isssaieah vs Lars | 8–13 | 38.10% |
| Isssaieah vs Lee | 9–12 | 42.86% |
| Isssaieah vs Leo | 9–11 | 45.00% |
| Isssaieah vs Nina | 9–11 | 45.00% |
| Isssaieah vs Armor King | 12–6 | 66.67% |
| Isssaieah vs Yoshimitsu | 10–7 | 58.82% |
| Isssaieah vs Xiaoyu | 9–8 | 52.94% |
| Isssaieah vs Lidia | 7–10 | 41.18% |
| Isssaieah vs Jun | 9–6 | 60.00% |
| Isssaieah vs Victor | 7–7 | 50.00% |
| Isssaieah vs Devil Jin | 5–8 | 38.46% |
| Isssaieah vs Leroy | 5–7 | 41.67% |
| Isssaieah vs Feng | 3–8 | 27.27% |
| Isssaieah vs Alisa | 2–5 | 28.57% |
| Isssaieah vs Jack-8 | 4–1 | 80.00% |
| Isssaieah vs Claudio | 2–2 | 50.00% |
| Isssaieah vs Shaheen | 1–3 | 25.00% |
| Isssaieah vs Kuma | 3–0 | 100.00% |
| Isssaieah vs Zafina | 3–0 | 100.00% |
| Isssaieah vs Panda | 1–0 | 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.