| Islandboy vs Jin | 14–16 | 46.67% |
| Islandboy vs Kazuya | 19–11 | 63.33% |
| Islandboy vs Bryan | 17–9 | 65.38% |
| Islandboy vs Hwoarang | 16–9 | 64.00% |
| Islandboy vs Reina | 14–10 | 58.33% |
| Islandboy vs King | 11–12 | 47.83% |
| Islandboy vs Lili | 14–9 | 60.87% |
| Islandboy vs Law | 13–9 | 59.09% |
| Islandboy vs Armor King | 14–6 | 70.00% |
| Islandboy vs Asuka | 13–6 | 68.42% |
| Islandboy vs Steve | 10–8 | 55.56% |
| Islandboy vs Victor | 11–6 | 64.71% |
| Islandboy vs Paul | 11–4 | 73.33% |
| Islandboy vs Eddy | 4–10 | 28.57% |
| Islandboy vs Feng | 5–8 | 38.46% |
| Islandboy vs Dragunov | 5–7 | 41.67% |
| Islandboy vs Lars | 6–5 | 54.55% |
| Islandboy vs Nina | 7–4 | 63.64% |
| Islandboy vs Claudio | 6–4 | 60.00% |
| Islandboy vs Alisa | 6–2 | 75.00% |
| Islandboy vs Raven | 5–3 | 62.50% |
| Islandboy vs Heihachi | 5–3 | 62.50% |
| Islandboy vs Zafina | 4–3 | 57.14% |
| Islandboy vs Yoshimitsu | 2–4 | 33.33% |
| Islandboy vs Devil Jin | 4–2 | 66.67% |
| Islandboy vs Leroy | 3–3 | 50.00% |
| Islandboy vs Jun | 6–0 | 100.00% |
| Islandboy vs Miary Zo | 3–3 | 50.00% |
| Islandboy vs Shaheen | 4–1 | 80.00% |
| Islandboy vs Azucena | 4–1 | 80.00% |
| Islandboy vs Lidia | 1–4 | 20.00% |
| Islandboy vs Clive | 1–4 | 20.00% |
| Islandboy vs Fahkumram | 3–2 | 60.00% |
| Islandboy vs Leo | 4–0 | 100.00% |
| Islandboy vs Kuma | 2–2 | 50.00% |
| Islandboy vs Jack-8 | 2–1 | 66.67% |
| Islandboy vs Lee | 1–2 | 33.33% |
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.