Grab your racket and a magnifying glass (or use your phone’s camera zoom). Lighting is critical here, as these codes are often laser-etched or printed in fine black ink.
1234567)This number is sequential but not publicly cross-referenced by Yonex. However: how to check yonex racket serial number
8888888) or very low numbers like 0000001.All genuine Yonex rackets (outside of very old vintage models) have a two-letter country code at the end of the shaft code. If you see 061233 with no letters – fake. How to check a Yonex racket serial number