| Aihara vs King | 149–144 | 50.85% |
| Aihara vs Jin | 150–133 | 53.00% |
| Aihara vs Kazuya | 115–129 | 47.13% |
| Aihara vs Hwoarang | 147–89 | 62.29% |
| Aihara vs Law | 119–116 | 50.64% |
| Aihara vs Bryan | 103–115 | 47.25% |
| Aihara vs Steve | 115–83 | 58.08% |
| Aihara vs Armor King | 92–98 | 48.42% |
| Aihara vs Reina | 82–103 | 44.32% |
| Aihara vs Heihachi | 97–83 | 53.89% |
| Aihara vs Lars | 70–79 | 46.98% |
| Aihara vs Yoshimitsu | 64–80–1 | 44.44% |
| Aihara vs Dragunov | 60–77–1 | 43.80% |
| Aihara vs Paul | 43–69 | 38.39% |
| Aihara vs Lee | 50–61 | 45.05% |
| Aihara vs Lili | 49–57 | 46.23% |
| Aihara vs Fahkumram | 47–57 | 45.19% |
| Aihara vs Anna | 54–49 | 52.43% |
| Aihara vs Jun | 48–54 | 47.06% |
| Aihara vs Azucena | 40–62 | 39.22% |
| Aihara vs Raven | 43–56 | 43.43% |
| Aihara vs Miary Zo | 44–52 | 45.83% |
| Aihara vs Xiaoyu | 47–46 | 50.54% |
| Aihara vs Eddy | 35–57 | 38.04% |
| Aihara vs Feng | 33–57 | 36.67% |
| Aihara vs Victor | 50–36 | 58.14% |
| Aihara vs Leroy | 36–49 | 42.35% |
| Aihara vs Asuka | 30–54 | 35.71% |
| Aihara vs Lidia | 35–41 | 46.05% |
| Aihara vs Leo | 43–29 | 59.72% |
| Aihara vs Devil Jin | 35–35 | 50.00% |
| Aihara vs Nina | 32–36 | 47.06% |
| Aihara vs Clive | 37–31 | 54.41% |
| Aihara vs Zafina | 19–33 | 36.54% |
| Aihara vs Alisa | 18–29 | 38.30% |
| Aihara vs Jack-8 | 13–24 | 35.14% |
| Aihara vs Claudio | 15–18 | 45.45% |
| Aihara vs Kuma | 17–10 | 62.96% |
| Aihara vs Shaheen | 9–14 | 39.13% |
| Aihara vs Panda | 3–5 | 37.50% |
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.