| Jameikko vs Clive | 15–20 | 42.86% |
| Jameikko vs Steve | 12–20 | 37.50% |
| Jameikko vs Reina | 21–7 | 75.00% |
| Jameikko vs Yoshimitsu | 9–16 | 36.00% |
| Jameikko vs Lee | 10–13 | 43.48% |
| Jameikko vs King | 11–10 | 52.38% |
| Jameikko vs Jin | 12–9 | 57.14% |
| Jameikko vs Bryan | 7–11 | 38.89% |
| Jameikko vs Kazuya | 12–6 | 66.67% |
| Jameikko vs Victor | 14–4 | 77.78% |
| Jameikko vs Eddy | 8–10 | 44.44% |
| Jameikko vs Lili | 6–11 | 35.29% |
| Jameikko vs Jun | 7–10 | 41.18% |
| Jameikko vs Hwoarang | 11–5 | 68.75% |
| Jameikko vs Dragunov | 9–7 | 56.25% |
| Jameikko vs Xiaoyu | 7–8 | 46.67% |
| Jameikko vs Heihachi | 8–7 | 53.33% |
| Jameikko vs Lars | 7–6 | 53.85% |
| Jameikko vs Armor King | 8–3 | 72.73% |
| Jameikko vs Nina | 4–6 | 40.00% |
| Jameikko vs Azucena | 7–3 | 70.00% |
| Jameikko vs Feng | 4–5 | 44.44% |
| Jameikko vs Asuka | 0–8 | 0.00% |
| Jameikko vs Devil Jin | 2–6 | 25.00% |
| Jameikko vs Lidia | 5–3 | 62.50% |
| Jameikko vs Alisa | 2–4 | 33.33% |
| Jameikko vs Claudio | 1–5 | 16.67% |
| Jameikko vs Leroy | 6–0 | 100.00% |
| Jameikko vs Raven | 2–4 | 33.33% |
| Jameikko vs Fahkumram | 4–2 | 66.67% |
| Jameikko vs Law | 0–5 | 0.00% |
| Jameikko vs Leo | 3–2 | 60.00% |
| Jameikko vs Kuma | 2–2 | 50.00% |
| Jameikko vs Panda | 3–1 | 75.00% |
| Jameikko vs Paul | 1–2 | 33.33% |
| Jameikko vs Jack-8 | 3–0 | 100.00% |
| Jameikko vs Zafina | 3–0 | 100.00% |
| Jameikko vs Anna | 2–1 | 66.67% |
| Jameikko vs Shaheen | 2–0 | 100.00% |
| Jameikko vs Miary Zo | 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.