Swimming at the 1964 Summer Olympics

Lore & Background

The 1964 swimming competition saw the removal of the men's 100 metre backstroke and the addition of the men's 200 metre backstroke, the 4 × 100 metre freestyle relay, and the 400 metre individual medley for both sexes. On the women's side, only the 400 metre individual medley was added. All pool events were long course, with distances in metres. The program included freestyle, backstroke, breaststroke, butterfly, individual medley, and relay events.

Reader's Guide

The 1964 Olympics marked a turning point in competitive swimming with the introduction of electronic touchpads, which improved timing accuracy. The fact that Olympic records were set in every event and world records in ten underscores the high level of performance. The addition of the 400 metre individual medley and the men's 4 × 100 freestyle relay expanded the program, reflecting the sport's evolution. The participation of 405 swimmers from 42 nations highlighted swimming's global reach. Sharon Stouder's four medals at age 15 exemplified the emergence of young talent. These Games set a benchmark for future Olympic swimming competitions.

Did You Know?

• Electronic touchpads for timing debuted at these Games.
• Olympic records were broken in all 18 events.
• World records were broken in ten events.
• 15-year-old Sharon Stouder won four medals, three of them gold.

The Scale and Structure of Olympic Swimming

Swimming holds a uniquely prominent position in the Olympic programme, having been contested at every edition of the modern Summer Games since their inception. It ranks as the second-largest medal discipline behind only athletics, a testament to the depth of events offered across strokes and distances. The sport sits within the broader Olympic discipline of aquatics, which also encompasses artistic swimming, diving, marathon swimming, and water polo. While men have competed from the very first Games in 1896, women were not admitted to the swimming programme until 1912 in Stockholm. That single decision transformed the sport's competitive landscape, and over the following decades the women's schedule expanded steadily. By the mid-20th century, both men and women were contending across freestyle, backstroke, breaststroke, and butterfly events, as well as individual medley and relay formats. The sheer volume of medal opportunities means that swimming generates more podium ceremonies than nearly any other Olympic sport, making it a central pillar of the Games' competitive rhythm.

From Open Water to the 50-Metre Standard

The early Olympic swimming competitions bore little resemblance to the precision-engineered pool races of later decades. In 1896, swimmers raced in the Mediterranean Sea; in 1900 they tackled the Seine in Paris; in 1904 they competed in an artificial lake, with distances measured in yards rather than the customary metres; and in 1906 they returned to the Mediterranean. The 1908 Games in London marked a turning point, as a 100-metre pool was constructed inside the track-and-field oval of the main stadium. Four years later in Stockholm, electrical timing was introduced for the first time, though the races still took place in the harbour. The definitive standard arrived at the 1924 Paris Games: for the first time, a 50-metre pool with clearly marked lanes was used, and that specification has remained the universal Olympic requirement ever since. This shift from unpredictable open water to a controlled, measurable environment fundamentally changed how swimmers trained, how records were set, and how the sport was perceived by audiences worldwide.

Rules, Strokes, and the Evolution of Equipment

The technical rules governing Olympic swimming have undergone dramatic transformations over the decades. Male athletes wore full-body swimsuits that generated considerably more drag than the streamlined trunks of the modern era, a constraint that persisted until the 1940s. Diving blocks were not introduced until the 1936 Berlin Games, before which swimmers simply dove from the pool walls. The flip-turn, now a universal technique for changing direction, was not developed until the 1950s. Perhaps the most significant rule change came in 1956, when the butterfly stroke was formally separated from breaststroke and established as its own discipline; prior to that, butterfly movements were permitted within breaststroke races. Swimming goggles were not permitted until the 1976 Montreal Games. Pool engineering has also played a crucial role in reducing resistance: proper depth, elimination of surface waves and currents, wider lanes, energy-absorbing lane lines and gutters, and innovative hydraulic and acoustic designs have all contributed to consistently faster times across successive Olympics.

Closing the Gender Gap in Distances and Relays

For much of Olympic history, the men's and women's swimming programmes were not symmetrical in scope. The 800-metre freestyle was added to the women's schedule in 1968, yet it remained shorter than the men's 1500-metre event. That imbalance was not corrected until the 2020 Tokyo Games, when the 1500 metres was finally included for women and the 800 metres was added for men. The 200-metre freestyle, providing an intermediate distance between 100 and 400 metres, was granted to both genders in 1968. Relay competition also evolved: the 4 × 100-metre medley relay did not appear for either sex until 1960, but has been a fixture in every Games since. The women's 4 × 200-metre freestyle relay debuted in 1996, and remarkably, the winning time at that debut was more than two minutes faster than the men's winning time in 1912, when the men's version of that relay was first held. A mixed 4 × 100-metre medley relay featuring two women and two men was introduced at the 2020 Games, and the 50-metre backstroke, breaststroke, and butterfly events are scheduled for the 2028 programme.