| Isaiah1998 vs King | 52–14 | 78.79% |
| Isaiah1998 vs Bryan | 20–15 | 57.14% |
| Isaiah1998 vs Kazuya | 18–14 | 56.25% |
| Isaiah1998 vs Armor King | 18–12 | 60.00% |
| Isaiah1998 vs Jin | 12–17 | 41.38% |
| Isaiah1998 vs Jun | 14–13 | 51.85% |
| Isaiah1998 vs Steve | 17–9 | 65.38% |
| Isaiah1998 vs Law | 16–8 | 66.67% |
| Isaiah1998 vs Dragunov | 18–6 | 75.00% |
| Isaiah1998 vs Lili | 11–12 | 47.83% |
| Isaiah1998 vs Reina | 15–5 | 75.00% |
| Isaiah1998 vs Raven | 13–6 | 68.42% |
| Isaiah1998 vs Nina | 11–6 | 64.71% |
| Isaiah1998 vs Victor | 9–8 | 52.94% |
| Isaiah1998 vs Azucena | 11–5 | 68.75% |
| Isaiah1998 vs Lidia | 9–7 | 56.25% |
| Isaiah1998 vs Miary Zo | 11–4 | 73.33% |
| Isaiah1998 vs Xiaoyu | 10–4 | 71.43% |
| Isaiah1998 vs Alisa | 7–7 | 50.00% |
| Isaiah1998 vs Lee | 10–4 | 71.43% |
| Isaiah1998 vs Paul | 10–3 | 76.92% |
| Isaiah1998 vs Eddy | 10–3 | 76.92% |
| Isaiah1998 vs Feng | 9–3 | 75.00% |
| Isaiah1998 vs Hwoarang | 9–2 | 81.82% |
| Isaiah1998 vs Heihachi | 6–3 | 66.67% |
| Isaiah1998 vs Lars | 2–6 | 25.00% |
| Isaiah1998 vs Anna | 6–2 | 75.00% |
| Isaiah1998 vs Fahkumram | 5–3 | 62.50% |
| Isaiah1998 vs Claudio | 5–2 | 71.43% |
| Isaiah1998 vs Devil Jin | 4–2 | 66.67% |
| Isaiah1998 vs Kuma | 2–4 | 33.33% |
| Isaiah1998 vs Zafina | 3–3 | 50.00% |
| Isaiah1998 vs Asuka | 5–0 | 100.00% |
| Isaiah1998 vs Yoshimitsu | 2–2 | 50.00% |
| Isaiah1998 vs Leo | 4–0 | 100.00% |
| Isaiah1998 vs Shaheen | 2–1 | 66.67% |
| Isaiah1998 vs Leroy | 0–3 | 0.00% |
| Isaiah1998 vs Jack-8 | 2–0 | 100.00% |
| Isaiah1998 vs Panda | 1–1 | 50.00% |
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.