The 33-year-old paraplegic clocked 14.51 seconds in the men’s T53 100-metre final in Lyon, France. Lakatos won gold in the T53 200 (26.00) and 400 (49.02) events earlier in the week, all championship records.
He picked up a silver medal in the 800.
Lakatos earned his first Paralympic medal in his third Games last September in London, finishing second in the T53 400.
The Quebec-raised computer analyst from Dallas became a paraplegic as a result of a hockey accident when he was six.
Lakatos’s wife, Stefanie Reid, is a single-leg amputee who also competed at the 2012 Paralympics.
The world paralympic athletics championship continues through the weekend.