Complex sentence: Koch started his World Cup career in 1999, and finished in the top 3 in all ski jumping events eighteen times, including two victories with the first being on 8 January 2011 in Harrachov.
Split into simpler sentences: Koch started his World Cup career in 1999 and finished in the top 3 in all ski jumping events eighteen times. This included two victories with the first being on 8 January 2011 in Harrachov.