India's Avinash Sable shattered his own 3000m steeplechase national record but failed to qualify for the final despite clocking a better time than the top three in another heat race of the Tokyo Olympics on Friday.

The 26-year-old clocked 8 minutes 18.12 seconds in heat number 2 to finish seventh and better his earlier national record of 8:20.20 that he set during the Federation Cup in March.

But he was unlucky to miss the finals cut as only the top-three finishers from each heat are automatic qualifiers. The top-three from heat number 3 ran in slower time than him. Fifteen athletes -- the best three in each of the three heats and the next six fastest athletes across all the qualifying heats -- qualify for the final. Sable ended seventh best across all the qualifying heats and 13th overall.

In the 400m hurdles round 1 heat 5, MP Jabir struggled and finished last with 50.77.

Dutee Chand fails

Indian sprinter Dutee Chand failed to get through to the semifinals of 100m, finishing seventh in Round 1 - Heat 1.

(With PTI inputs)