Katie Ledecky Swims 4:02 400 Free at Sectionals; Summer McIntosh Goes Sub-1:00 100 Back. One day after her 13-year winning streak in the 800 freestyle was snapped, Katie Ledecky swam one more race at the Orlando Sectionals Friday evening, this time without Summer McIntosh in the field, but McIntosh raced other events and continued building up her legend as one of the most versatile swimmers not only currently active but in swimming history.