| Björn Ironside vs Steve | 34–23 | 59.65% |
| Björn Ironside vs Armor King | 26–23 | 53.06% |
| Björn Ironside vs King | 29–19 | 60.42% |
| Björn Ironside vs Eddy | 32–16 | 66.67% |
| Björn Ironside vs Kazuya | 15–27 | 35.71% |
| Björn Ironside vs Reina | 21–16 | 56.76% |
| Björn Ironside vs Law | 15–18 | 45.45% |
| Björn Ironside vs Jin | 12–19 | 38.71% |
| Björn Ironside vs Bryan | 15–9 | 62.50% |
| Björn Ironside vs Dragunov | 17–7 | 70.83% |
| Björn Ironside vs Asuka | 17–6 | 73.91% |
| Björn Ironside vs Yoshimitsu | 11–8 | 57.89% |
| Björn Ironside vs Fahkumram | 9–9 | 50.00% |
| Björn Ironside vs Hwoarang | 10–7 | 58.82% |
| Björn Ironside vs Lili | 10–4 | 71.43% |
| Björn Ironside vs Jun | 9–5 | 64.29% |
| Björn Ironside vs Xiaoyu | 8–4 | 66.67% |
| Björn Ironside vs Lars | 7–5 | 58.33% |
| Björn Ironside vs Miary Zo | 5–5 | 50.00% |
| Björn Ironside vs Paul | 8–1 | 88.89% |
| Björn Ironside vs Lee | 6–3 | 66.67% |
| Björn Ironside vs Azucena | 6–3 | 66.67% |
| Björn Ironside vs Victor | 5–4 | 55.56% |
| Björn Ironside vs Heihachi | 4–5 | 44.44% |
| Björn Ironside vs Jack-8 | 2–6 | 25.00% |
| Björn Ironside vs Nina | 2–6 | 25.00% |
| Björn Ironside vs Devil Jin | 1–6 | 14.29% |
| Björn Ironside vs Feng | 2–5 | 28.57% |
| Björn Ironside vs Leroy | 3–4 | 42.86% |
| Björn Ironside vs Leo | 4–2 | 66.67% |
| Björn Ironside vs Raven | 5–1 | 83.33% |
| Björn Ironside vs Anna | 4–2 | 66.67% |
| Björn Ironside vs Claudio | 4–1 | 80.00% |
| Björn Ironside vs Panda | 4–1 | 80.00% |
| Björn Ironside vs Alisa | 1–3 | 25.00% |
| Björn Ironside vs Clive | 1–2 | 33.33% |
| Björn Ironside vs Lidia | 1–1 | 50.00% |
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.