|Year|Competition|Venue|Position|Notes|
|---|---|---|---|---|
|1994|Commonwealth Games|Victoria, Canada|6th|400 m h|
|1995|World Championships|Gothenburg, Sweden|6th|400 m h|
|1997|World Championships|Athens, Greece|7th|4x400 m relay|
|1998|Commonwealth Games|Kuala Lumpur, Malaysia|3rd|400 m h|
|1998|African Championships|Dakar, Senegal|2nd|400 m h|
|1999|All-Africa Games|Johannesburg, South Africa|2nd|400 m h|

Question: in what year did ken harnden participate in more than one competition?
Answer: 1998