| SpeedDemon vs Kazuya | 8–5 | 61.54% |
| SpeedDemon vs Heihachi | 8–3 | 72.73% |
| SpeedDemon vs Armor King | 5–5 | 50.00% |
| SpeedDemon vs Jin | 7–2 | 77.78% |
| SpeedDemon vs Law | 6–2 | 75.00% |
| SpeedDemon vs Reina | 4–4 | 50.00% |
| SpeedDemon vs Yoshimitsu | 4–3 | 57.14% |
| SpeedDemon vs Hwoarang | 4–2 | 66.67% |
| SpeedDemon vs Bryan | 6–0 | 100.00% |
| SpeedDemon vs Steve | 6–0 | 100.00% |
| SpeedDemon vs Devil Jin | 4–2 | 66.67% |
| SpeedDemon vs Lili | 3–3 | 50.00% |
| SpeedDemon vs Dragunov | 6–0 | 100.00% |
| SpeedDemon vs Eddy | 3–3 | 50.00% |
| SpeedDemon vs Xiaoyu | 3–2 | 60.00% |
| SpeedDemon vs Azucena | 2–2 | 50.00% |
| SpeedDemon vs Clive | 2–2 | 50.00% |
| SpeedDemon vs Fahkumram | 4–0 | 100.00% |
| SpeedDemon vs Paul | 1–2 | 33.33% |
| SpeedDemon vs King | 2–1 | 66.67% |
| SpeedDemon vs Feng | 0–3 | 0.00% |
| SpeedDemon vs Zafina | 3–0 | 100.00% |
| SpeedDemon vs Leroy | 0–3 | 0.00% |
| SpeedDemon vs Miary Zo | 0–3 | 0.00% |
| SpeedDemon vs Panda | 2–0 | 100.00% |
| SpeedDemon vs Lidia | 1–1 | 50.00% |
| SpeedDemon vs Asuka | 1–0 | 100.00% |
| SpeedDemon vs Alisa | 0–1 | 0.00% |
| SpeedDemon vs Claudio | 1–0 | 100.00% |
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.