| Littleboy0040 vs Jin | 21–34 | 38.18% |
| Littleboy0040 vs Hwoarang | 16–19 | 45.71% |
| Littleboy0040 vs King | 13–17 | 43.33% |
| Littleboy0040 vs Reina | 14–15 | 48.28% |
| Littleboy0040 vs Kazuya | 6–22 | 21.43% |
| Littleboy0040 vs Law | 7–17 | 29.17% |
| Littleboy0040 vs Lili | 9–15 | 37.50% |
| Littleboy0040 vs Yoshimitsu | 13–10 | 56.52% |
| Littleboy0040 vs Bryan | 7–15 | 31.82% |
| Littleboy0040 vs Asuka | 7–15 | 31.82% |
| Littleboy0040 vs Steve | 7–14 | 33.33% |
| Littleboy0040 vs Jun | 7–12 | 36.84% |
| Littleboy0040 vs Azucena | 9–9 | 50.00% |
| Littleboy0040 vs Eddy | 8–10 | 44.44% |
| Littleboy0040 vs Heihachi | 4–14 | 22.22% |
| Littleboy0040 vs Lars | 10–6 | 62.50% |
| Littleboy0040 vs Paul | 7–8 | 46.67% |
| Littleboy0040 vs Nina | 8–7 | 53.33% |
| Littleboy0040 vs Lee | 4–9 | 30.77% |
| Littleboy0040 vs Victor | 6–7 | 46.15% |
| Littleboy0040 vs Dragunov | 4–8 | 33.33% |
| Littleboy0040 vs Leroy | 5–6 | 45.45% |
| Littleboy0040 vs Devil Jin | 2–7 | 22.22% |
| Littleboy0040 vs Xiaoyu | 4–4 | 50.00% |
| Littleboy0040 vs Kuma | 3–5 | 37.50% |
| Littleboy0040 vs Zafina | 3–5 | 37.50% |
| Littleboy0040 vs Raven | 5–3 | 62.50% |
| Littleboy0040 vs Lidia | 4–4 | 50.00% |
| Littleboy0040 vs Feng | 4–3 | 57.14% |
| Littleboy0040 vs Alisa | 3–4 | 42.86% |
| Littleboy0040 vs Anna | 1–6 | 14.29% |
| Littleboy0040 vs Leo | 2–4 | 33.33% |
| Littleboy0040 vs Claudio | 1–4 | 20.00% |
| Littleboy0040 vs Shaheen | 4–0 | 100.00% |
| Littleboy0040 vs Clive | 2–2 | 50.00% |
| Littleboy0040 vs Jack-8 | 0–2 | 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.