In Valencia, athletes achieved record-breaking times, but neither will count officially. Yaseen Abdalla, born in the U.S., ran 59:12, surpassing the American record. However, he competed under the Sudanese flag. Similarly, Rodrigue Kwizera, now Spanish, clocked 58:03, beating the European record.

Abdalla, living and training in the U.S., claims the fastest American time ever. Yet, World Athletics won't recognize it. Kwizera's time won't be a European record until 2027 due to a three-year waiting period for allegiance changes. Spain recognizes Kwizera's run as a national record. Read more culture coverage.

Despite these unrecognized records, other athletes shone. Sheila Chepkirui and Diana Wanza, both Kenyan, raced closely, with Chepkirui winning in 1:03:51. Two Canadians, Hudson Grimshaw-Surette and Ben Preisner, also achieved sub-1:03 times, with Grimshaw-Surette setting a new personal best. Related: Abdalla's Record-Breaking Run in Valencia.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.