Final answer:
Squeaky characterizes Raphael as both a fast runner and a psychological tactician who intimidates his opponents to secure his victories in races.
Step-by-step explanation:
Raphael is characterized by Squeaky as a confident and skilled runner, but also as someone who employs psychological tactics to unsettle his opponents before a race. The passage suggests that he intimidates other runners by predicting embarrassing mishaps for them, which likely helps him secure his victories. Despite this, Squeaky acknowledges Raphael's inherent speed, mentioning that he is "very fast", and comparing his speed to her own.