was not until 1912 that newspapers reported potato racing as a mounted rodeo event, with advertisements for one large Los Angeles rodeo listing the potato race by name, although without elaboration on the rules. A 1913 report in the San Francisco Chronicle clearly describes a team-based potato race taking place at a Mardi Gras celebration in Salinas, California, calling it a "new riding stunt". By 1913, on-foot potato races were being referred to as old-fashioned. A 1917 article in Popular Mechanics magazine suggested racing to screw in a line of lightbulbs as a substitute for potato races. The popularity of mounted potato races as rodeo events died out by the 1930s. Informal on-foot potato races for children are still featured as a means of entertainment at many local celebrations and events in the United States. Mounted potato races are still used as a part of equestrian gymkhana events for youth today, albeit in a more structured and form that lacks the violence of the team-based rodeo version. Foot races Potato races run on foot were commonly held for children as playground games and during physical education classes in schools. They were also featured at local events such as picnics or fairs, and still occasionally are today. Potato races have also been used by researchers to measure physical performance in children. A number of lanes, one per runner, would be marked out. Potatoes would be placed at intervals along each lane, and a basket would be placed several feet behind the lane. Runners would race to retrieve potatoes one by one, returning each one to the basket before returning for the next. The winner was the first to collect all the potatoes in their lane. In one variation, two runners competed to be the first to return fifty potatoes to their own basket, racing simultaneously to take the closest potato from a single line of one hundred potatoes rather than separate lanes. On-foot potato races have been likened to the Zuni game of A-we-wō-po-pa-ne, which involved collecting stones rather than potatoes. Writing in 1915, feminist theorist Charlotte Perkins Gilman described seeing a moving picture of a potato race on ice, and remarked on the notable difference between the performance of men and women, which she attributed to the restrictive clothing worn by women at the time. Mounted Individual competition Potato races with mounted participants were historically geared toward adult participation. They