- At the 13th FINA World Swimming Championships (25-m) in Windsor, Ont. Dekker finished 31st in the 200-m butterfly.
- At the 2016 Canadian Swimming Championships in Edmonton, Dekker left with two gold and a silver medal. Dekker finished with gold in the 100-m and 200-m butterfly along with a silver in the 50-m butterfly.
- At the 2016 Olympic & Para-swimming Trials in Toronto, Dekker finished second in the 200-m butterfly.
- At the 2014 Junior Pan Pacific Championships in Maui, Dekker swam in the prelim for the 4×100-m freestyle relay that later won a bronze medal.
- At the 2014 Canadian Swimming Championships in Saskatoon, Dekker left with a bronze medal in the 100-m butterfly.
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