| Full name: | Sydney Ernest Day |
| Born: | 9th February 1884, Blackheath, Kent, England |
| Died: | 7th July 1970, West Malling, Kent, England |
| Batting: | Right-hand batter |
| Education: | Malvern College |
| Relations: | Brother-in-law: C Toppin; Brother: AP Day; Brother: SH Day; Nephew: AS Day; Nephew: CG Toppin; Nephew: JFT Toppin; Nephew: DAS Day |
| Teams: | Kent (Main FC: 1922-1925); All teams |
| Lists of matches and more detailed statistics | |
| First-Class Career Batting and Fielding (1922-1925) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Kent | 11 | 17 | 4 | 245 | 45* | 18.84 | 0 | 0 | 4 | |