Most LMSs assume US grading and force everyone else to retrofit. WebBoard ships nine grading systems, each as a real C# strategy with matching frontend formatter, so the boundaries match what your country actually uses.
Grading systems shipped:
US A to F (90/80/70/60)
Croatian 1 to 5 (90/75/60/50)
German 1 to 6 (Schulnoten, pass at 4)
UK 1 to 9 (GCSE, pass at 4 / 35%)
IB 1 to 7 (Diploma, pass at 4 / 50%)
ECTS A to F (Higher Education, E as minimum pass)
Norwegian 1 to 6 (grade 2 still passes per Norwegian convention)
Percentage (raw %, pass at 50)
Pass / Fail (binary)
Other features:
Pick the org default, override per class
Weight categories per subject inside one class
Manual grade rows that aren't tied to an assignment
Full audit trail on every grade change (created and modified timestamps and member ids)
Export to CSV or XLSX for district reports