| WORST NIGHTMARE vs Kazuya | 21–14 | 60.00% |
| WORST NIGHTMARE vs Dragunov | 13–8 | 61.90% |
| WORST NIGHTMARE vs Clive | 9–12 | 42.86% |
| WORST NIGHTMARE vs Hwoarang | 11–9 | 55.00% |
| WORST NIGHTMARE vs King | 9–10 | 47.37% |
| WORST NIGHTMARE vs Jin | 9–8 | 52.94% |
| WORST NIGHTMARE vs Paul | 12–4 | 75.00% |
| WORST NIGHTMARE vs Law | 10–6 | 62.50% |
| WORST NIGHTMARE vs Lili | 8–8 | 50.00% |
| WORST NIGHTMARE vs Bryan | 4–9 | 30.77% |
| WORST NIGHTMARE vs Reina | 8–5 | 61.54% |
| WORST NIGHTMARE vs Heihachi | 8–4 | 66.67% |
| WORST NIGHTMARE vs Lars | 4–6 | 40.00% |
| WORST NIGHTMARE vs Alisa | 4–6 | 40.00% |
| WORST NIGHTMARE vs Jun | 4–6 | 40.00% |
| WORST NIGHTMARE vs Azucena | 6–4 | 60.00% |
| WORST NIGHTMARE vs Eddy | 7–3 | 70.00% |
| WORST NIGHTMARE vs Yoshimitsu | 4–5 | 44.44% |
| WORST NIGHTMARE vs Xiaoyu | 2–6 | 25.00% |
| WORST NIGHTMARE vs Asuka | 3–4 | 42.86% |
| WORST NIGHTMARE vs Steve | 5–1 | 83.33% |
| WORST NIGHTMARE vs Feng | 3–3 | 50.00% |
| WORST NIGHTMARE vs Leo | 5–1 | 83.33% |
| WORST NIGHTMARE vs Nina | 3–2 | 60.00% |
| WORST NIGHTMARE vs Lidia | 2–3 | 40.00% |
| WORST NIGHTMARE vs Claudio | 2–2 | 50.00% |
| WORST NIGHTMARE vs Devil Jin | 2–1 | 66.67% |
| WORST NIGHTMARE vs Lee | 3–0 | 100.00% |
| WORST NIGHTMARE vs Zafina | 2–1 | 66.67% |
| WORST NIGHTMARE vs Raven | 2–1 | 66.67% |
| WORST NIGHTMARE vs Jack-8 | 0–2 | 0.00% |
| WORST NIGHTMARE vs Kuma | 2–0 | 100.00% |
| WORST NIGHTMARE vs Panda | 1–1 | 50.00% |
| WORST NIGHTMARE vs Leroy | 1–0 | 100.00% |
| WORST NIGHTMARE vs Victor | 0–1 | 0.00% |
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.