The 2015 Championships had a narrower list of events for S12 classification swimmers .
Russell entered only three events , winning gold in the 50m freestyle and two silver medals in the 100m backstroke and 100m freestyle .
The 2015 Championships had a narrower list of events for S12 classification swimmers , and Russell entered only three events , winning gold in the 50m freestyle and two silver medals in the 100m backstroke and 100m freestyle .