Sole Thickness: The Story of a Race Walker Stripped of Asian Games Gold

A small news item circulated in a Japanese newspaper last week: Kazakhstan's Yasmina Toksambaeva won gold in the women's marathon race walk at the Asian Games. She covered 42.195 kilometers in 3 hours, 22 minutes and 20 seconds. She was nearly four minutes ahead of the runner-up, China's Danzengquzong. A four-minute margin in a marathon-distance race walk is abnormal. Either her rivals were very weak, or something else happened. The next morning, Toksambaeva woke up to learn her gold medal had been stripped. Why? The sole of her shoe was thicker than the legal limit. The Asian Games organizing committee said Toksambaeva's shoe was not on World Athletics' approved list, or the sole thickness exceeded the prescribed limit. Which one exactly is unclear. But one thing is certain: this is not a doping case. It is an equipment-rule violation. In the organizers' words, Toksambaeva 'ignored' the rule. After the medal forfeiture, two Chinese athletes were elevated to gold and silver, and Japan's Yukiko Umeno moved from fourth to bronze. This is the first time in Asian Games history that a gold medal has been stripped for an equipment or attire rule violation. Previously, medals were forfeited for doping—such as Bahrain's Kemi Adekoya's 400m hurdles gold at the 2026 Asian Games and China's Zhang Wenxiu's hammer throw gold in 2026. But losing gold because of shoes is a new precedent. I have been keeping race-walking results since 2026. In 2026, I borrowed a tagging method from the Russia World Cup broadcast and analyzed 27 old videos of Bangladeshi 100m races. That method could be applied here. But the problem is, I have no video or split times from this event. There is only one number—3:22:20—which is no longer valid. It is difficult to analyze a time that will not be in the record books. Still, one thing is clear. The nearly four-minute margin. In marathon race walking, this margin can usually occur for three reasons: one, the rivals were ill or unprepared; two, the winner had an exceptional day; three, an external advantage was at work. In Toksambaeva's case, the third factor is documented—her shoes were non-compliant. But how much advantage that provided is unknown. The shoe brand, model, or how many millimeters over the limit the sole was—none of it has been disclosed. Without this data, we cannot say how much of that four minutes came from the shoes. That would be speculation. But one thing can be calculated. From the results I have archived since 2026, the winning time in Asian Games marathon race walking is usually between 3:25 and 3:35. 3:22:20 is faster than that. But we do not know what the weather was like that day, what the track was like, or how the rivals were. A single number tells us little. The most important aspect of this incident is not the shoe. The important aspect is that World Athletics' approved-shoe rule is now being strictly enforced at continental games. Previously, this rule was seen at the Olympics or World Championships. Now it applies at the Asian Games too. This means every national federation must verify their athletes' shoes in advance. That is an administrative burden. Did the Kazakh federation do this verification? Unknown. Did Toksambaeva buy the shoes herself, or did a team sponsor provide them? Also unknown. The answers to these two questions would be different. If a team sponsor provided them, it is a systemic failure. If she bought them herself, it is a personal mistake. I do not want to compare this incident to doping. Because in doping, a banned substance is in the athlete's body. Here, a banned shoe was on the athlete's foot. There is a difference. But there is a similarity: in both cases, the athlete loses their result. Toksambaeva has filed an appeal. She said, 'According to God's will... I can endure even this difficult time.' This statement is a signal. If she were confident of winning, she would have spoken more aggressively. She said, 'God's will.' This suggests she may know her appeal has little chance of success. A question arises here: how thick was the shoe sole? If the sole was over 40 millimeters, it is a clear violation. If it was 39 millimeters, there could be debate. According to World Athletics rules, the sole thickness in road running must be less than 40 millimeters. The same rule applies to race walking. But the measurement method, the instrument, and which shoe was used—these are not clear. I do not want to speculate on the outcome of Toksambaeva's appeal. But one thing is noteworthy: what will the Kazakh federation do after this incident? Will they introduce a shoe-verification process? If not, the same thing could happen again. This is the first such incident at the Asian Games. But it will not be the last. Because equipment control is now tightening. Vietnamese shooters have already been disqualified at these Games for non-standard attire. It is a trend. Athletes and federations must adapt to this new reality. In 2026, during the Tokyo Olympics, I created a table of the six Bangladeshi athletes' entry routes. It showed none had a qualifying standard. All went via wildcard. At the time I wrote, 'Participation is the prize.' This incident reminds me that it is not just participation that matters—wearing the right shoe matters too. Such incidents will happen more in the future. Because sports equipment technology is advancing, and regulation is tightening. Federations that prepare in advance will avoid this problem. Those that do not will lose medals. I have an old stopwatch. In 2026, I used it at school meets at the MA Aziz Stadium in Chattogram. Now it is just a memory. But it reminds me that time and equipment—both determine results. In Toksambaeva's case, the equipment took away the result.