| Shamacalay vs Kazuya | 75–78 | 49.02% |
| Shamacalay vs Jin | 54–62 | 46.55% |
| Shamacalay vs Heihachi | 53–47 | 53.00% |
| Shamacalay vs Reina | 44–44 | 50.00% |
| Shamacalay vs Bryan | 41–39 | 51.25% |
| Shamacalay vs Steve | 34–37 | 47.89% |
| Shamacalay vs Law | 23–47 | 32.86% |
| Shamacalay vs King | 28–41 | 40.58% |
| Shamacalay vs Yoshimitsu | 30–29 | 50.85% |
| Shamacalay vs Lili | 27–27 | 50.00% |
| Shamacalay vs Hwoarang | 23–28–1 | 45.10% |
| Shamacalay vs Devil Jin | 28–22 | 56.00% |
| Shamacalay vs Paul | 15–29 | 34.09% |
| Shamacalay vs Dragunov | 20–23 | 46.51% |
| Shamacalay vs Jun | 18–18 | 50.00% |
| Shamacalay vs Azucena | 21–15 | 58.33% |
| Shamacalay vs Feng | 20–15 | 57.14% |
| Shamacalay vs Lee | 19–16 | 54.29% |
| Shamacalay vs Eddy | 11–21 | 34.38% |
| Shamacalay vs Xiaoyu | 14–17 | 45.16% |
| Shamacalay vs Asuka | 14–17 | 45.16% |
| Shamacalay vs Victor | 18–13 | 58.06% |
| Shamacalay vs Clive | 6–21 | 22.22% |
| Shamacalay vs Jack-8 | 10–16 | 38.46% |
| Shamacalay vs Fahkumram | 16–10 | 61.54% |
| Shamacalay vs Nina | 11–14 | 44.00% |
| Shamacalay vs Alisa | 10–14 | 41.67% |
| Shamacalay vs Lidia | 14–9 | 60.87% |
| Shamacalay vs Lars | 13–9 | 59.09% |
| Shamacalay vs Shaheen | 8–10 | 44.44% |
| Shamacalay vs Leroy | 7–10 | 41.18% |
| Shamacalay vs Leo | 6–10 | 37.50% |
| Shamacalay vs Raven | 5–11 | 31.25% |
| Shamacalay vs Armor King | 5–7 | 41.67% |
| Shamacalay vs Claudio | 6–5 | 54.55% |
| Shamacalay vs Zafina | 3–6 | 33.33% |
| Shamacalay vs Anna | 8–1 | 88.89% |
| Shamacalay vs Kuma | 2–4 | 33.33% |
| Shamacalay vs Miary Zo | 1–3 | 25.00% |
| Shamacalay vs Panda | 2–1 | 66.67% |
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.