Starting XI splits

Data: transfermarkt-datasets, which collates Transfermarkt. Snapshot pinned at commit 154367df — nothing after 6 July 2026, because that project's pipeline stopped completing in mid-July 2026. The big five leagues only. Lineups exist from the 2013 season onward, so earlier games carry results but no starting XI; they are excluded from both sides of every split rather than counted as "did not start".