mile isn’t as important for ur speed. speed ad endurance are different things. work on reaction time drills and short sprnts like 50 m. with faster reaction u’ll move faster shortening ur time to get to the ball. and u’ll have a better set-up to hit it.
for weight training tennis uses just baout every muscle. the main ones are in ur arms which could include the bicep and tricep. the bicep is for ur forehand. i suggest preacher curls. and bicep curls. hammer curls too. tricep and chest can be helped my bench curls.
i have a website full of these but currently i dont have acess to the computer i bookmarked it on. best answer me and i’ll email u the link. or jut email me later and i’ll send u it

well in general any weight training for a tennis player should focus more on speed and stamina higher reps…. i’d say 10 - 12 reps.. focus on being lean, and shorter rests bewteen sets…

perhaps one week a monthu can lift heavier weights and go for reps of 6 - 8 for more strength and muscle size….

this is a good way to do it….

even lifting heavier u will not get huge unless u really have the genetics and diet for it

Honestly, how fast you run the mile isn’t directly applicable. You should practice footwork and agility on the court in quick bursts. liners, grapevines, shuffles, footwork drills.

Careful on weight training just focused on the arms. Unbalanced training can actually hinder how well you play, so it’s better to focus on arms and legs and core

For agility i’d say do some line drill,
running also helps. well that’s a given.

weight training? Play dance dance revolution, trust me your speed and agility will be great. As for arms? i dont know if weight training will help you. Remember, when you hit the ball, its how fast you swing your arm, than how much strength you have.