| Isaiah vs King | 42–47 | 47.19% |
| Isaiah vs Hwoarang | 35–24 | 59.32% |
| Isaiah vs Kazuya | 34–25 | 57.63% |
| Isaiah vs Jin | 33–25 | 56.90% |
| Isaiah vs Bryan | 19–35 | 35.19% |
| Isaiah vs Azucena | 26–19 | 57.78% |
| Isaiah vs Eddy | 12–33 | 26.67% |
| Isaiah vs Lili | 21–23 | 47.73% |
| Isaiah vs Dragunov | 23–21 | 52.27% |
| Isaiah vs Steve | 27–15 | 64.29% |
| Isaiah vs Reina | 23–19 | 54.76% |
| Isaiah vs Yoshimitsu | 17–22 | 43.59% |
| Isaiah vs Law | 16–22 | 42.11% |
| Isaiah vs Asuka | 20–14 | 58.82% |
| Isaiah vs Nina | 17–17 | 50.00% |
| Isaiah vs Paul | 18–15 | 54.55% |
| Isaiah vs Jun | 11–22 | 33.33% |
| Isaiah vs Lars | 13–15 | 46.43% |
| Isaiah vs Lee | 10–17 | 37.04% |
| Isaiah vs Victor | 10–17 | 37.04% |
| Isaiah vs Xiaoyu | 16–10 | 61.54% |
| Isaiah vs Leo | 10–15 | 40.00% |
| Isaiah vs Heihachi | 9–14 | 39.13% |
| Isaiah vs Feng | 11–11 | 50.00% |
| Isaiah vs Alisa | 7–15 | 31.82% |
| Isaiah vs Jack-8 | 11–9 | 55.00% |
| Isaiah vs Raven | 7–8 | 46.67% |
| Isaiah vs Kuma | 3–11 | 21.43% |
| Isaiah vs Clive | 3–6 | 33.33% |
| Isaiah vs Leroy | 1–7 | 12.50% |
| Isaiah vs Anna | 3–4 | 42.86% |
| Isaiah vs Devil Jin | 2–2 | 50.00% |
| Isaiah vs Claudio | 1–3 | 25.00% |
| Isaiah vs Panda | 1–2 | 33.33% |
| Isaiah vs Zafina | 1–2 | 33.33% |
| Isaiah vs Lidia | 2–1 | 66.67% |
| Isaiah vs Fahkumram | 1–2 | 33.33% |
| Isaiah vs Armor King | 2–1 | 66.67% |
| Isaiah vs Miary Zo | 0–2 | 0.00% |
| Isaiah vs Shaheen | 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.