In a volleyball league system, 3-0 and 3-1 win gives 3 points, 3-2 win gives 2 points, 2-3 loss gives 1 point, and 1-3 and 0-3 loss gives 0 point.
I thought this system is very strange because winning by 3-2 does not give full three points. This makes the standings table quite strange. For example, the Italian league as of January 24, 2023 looks like this:
|Rank||Team||Points||W||L||Sets W||Sets L||Sets Ratio|
|1||Sir Safety Susa Perugia||48||16||0||48||8||6.000|
|3||Valsa Group Modena||29||9||7||34||26||1.308|
|4||Cucine Lube Civitanova||26||9||7||32||27||1.185|
|5||Gas Sales Bluenergy Piacenza||25||8||8||33||30||1.100|
|6||Vero Volley Monza||24||8||8||28||31||0.903|
|8||Top Volley Cisterna||23||7||9||31||33||0.939|
|11||Gioiella Prisma Taranto||13||4||12||20||39||0.513|
|12||Emma Villas Aubay Siena||12||4||12||17||40||0.425|
The 9th ranked team (Verona) has a win-loss record of 8-8, but the 8th ranked team (Milano) has 7-9 which does not seem logical.
Is there a history or rationale for this unique ranking system?