How old were they?

Yoshikatsu Kawaguchi

GK · Born August 15, 1975

Age in each playoff game

1. 1998 Group stage (June 14, 1998), Japan vs Argentina 0–1: 22 years, 303 days
2. 1998 Group stage (June 20, 1998), Japan vs Croatia 0–1: 22 years, 309 days
3. 1998 Group stage (June 26, 1998), Japan vs Jamaica 1–2: 22 years, 315 days
4. 2006 Group stage (June 12, 2006), Japan vs Australia 1–3: 30 years, 301 days
5. 2006 Group stage (June 18, 2006), Japan vs Croatia 0–0: 30 years, 307 days
6. 2006 Group stage (June 22, 2006), Japan vs Brazil 1–4: 30 years, 311 days

Age in each season

1. 1998 (Japan): 22 years, 299 days to 22 years, 331 days
2. 2002 (Japan): 26 years, 289 days to 26 years, 319 days
3. 2006 (Japan): 30 years, 298 days to 30 years, 328 days
4. 2010 (Japan): 34 years, 300 days to 34 years, 330 days