head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Competitive PvP
Football sim testing execution and opponent reading under a studied tactical meta.

Reads · Grand Arena
A football sim where stick execution meets reading and outguessing opponents' play calls.
FIFA 21 leans Execution (Competitive PvP); Madden NFL 26 leans Reads (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA 21
Skill moves and finishing mechanics demand practiced hands
Madden NFL 26
Stick skills, timing throws and jukes matter constantly
Madden NFL 26 leans a little harder on reads, though the gap is small.
FIFA 21
Outguessing a human's defensive shape and attacking patterns is central
Madden NFL 26
Live opponents call and disguise plays, demanding prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA 21
Deflections, finishing RNG and pack luck colour outcomes
Madden NFL 26
Catch, fumble and injury RNG inject uncertainty
Madden NFL 26 leans a little harder on optimization, though the gap is small.
FIFA 21
Meta formations, custom tactics and squad building are studied deeply
Madden NFL 26
Playbook knowledge, roster building and scheme are deep
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.