| Tamasaki vs Dragunov | 57–51 | 52.78% |
| Tamasaki vs Kazuya | 52–49 | 51.49% |
| Tamasaki vs Reina | 67–29 | 69.79% |
| Tamasaki vs Asuka | 42–46 | 47.73% |
| Tamasaki vs Jin | 48–39 | 55.17% |
| Tamasaki vs Paul | 47–38 | 55.29% |
| Tamasaki vs Bryan | 45–38 | 54.22% |
| Tamasaki vs Lili | 48–32 | 60.00% |
| Tamasaki vs Victor | 40–40 | 50.00% |
| Tamasaki vs Hwoarang | 35–41 | 46.05% |
| Tamasaki vs Leroy | 50–20 | 71.43% |
| Tamasaki vs Azucena | 41–28 | 59.42% |
| Tamasaki vs Yoshimitsu | 34–30 | 53.12% |
| Tamasaki vs Law | 33–29 | 53.23% |
| Tamasaki vs King | 37–25 | 59.68% |
| Tamasaki vs Steve | 34–24 | 58.62% |
| Tamasaki vs Jack-8 | 28–29 | 49.12% |
| Tamasaki vs Devil Jin | 36–21 | 63.16% |
| Tamasaki vs Lee | 24–29 | 45.28% |
| Tamasaki vs Feng | 31–21 | 59.62% |
| Tamasaki vs Nina | 31–18 | 63.27% |
| Tamasaki vs Lars | 31–17 | 64.58% |
| Tamasaki vs Alisa | 25–21 | 54.35% |
| Tamasaki vs Raven | 29–15 | 65.91% |
| Tamasaki vs Zafina | 21–19 | 52.50% |
| Tamasaki vs Kuma | 15–22 | 40.54% |
| Tamasaki vs Jun | 21–16 | 56.76% |
| Tamasaki vs Eddy | 16–21 | 43.24% |
| Tamasaki vs Claudio | 26–8 | 76.47% |
| Tamasaki vs Leo | 11–21 | 34.38% |
| Tamasaki vs Xiaoyu | 11–19 | 36.67% |
| Tamasaki vs Shaheen | 15–12 | 55.56% |
| Tamasaki vs Panda | 13–8 | 61.90% |
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.