head to head
Virtua Tennis 4 asks more than Forza Horizon 2, and the gap is reads.

Execution · Pure Mechanics
Open-world racing testing car control and line discipline with light tuning underneath.

Execution · Pure Mechanics
An arcade tennis game rewarding precise timing and reading human opponents.
Forza Horizon 2 leans Execution (Pure Mechanics); Virtua Tennis 4 leans Execution (Pure Mechanics).
Virtua Tennis 4 leans a little harder on execution, though the gap is small.
Forza Horizon 2
Racing lines, braking points and car control lead everything
Virtua Tennis 4
precise shot timing and positioning
Virtua Tennis 4 leans clearly harder on reads.
Forza Horizon 2
Drivatar AI mimics styles but stays effectively scripted
Virtua Tennis 4
human opponents can be out-predicted in rallies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon 2
Weather shifts grip slightly; courses are fully known
Virtua Tennis 4
minor ball-bounce randomness
Forza Horizon 2 leans a little harder on optimization, though the gap is small.
Forza Horizon 2
Car tuning and route knowledge reward preparation
Virtua Tennis 4
minimal build depth, mostly play skill
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.