Kovalev-Korobov amateur fights (Please help)

[Pigeons]

Korobov beat Kovalev 38-15 at middleweight at the Russian Nationals in 2004.




While I was on YouTube, I came across another Kovalev-Korobov amateur fight which Kovalev won 22-19 at middleweight.
Does anyone know the context behind this fight? Tournament, year?

[jamamb]

going by kovalevs boxrec wiki page:

"2004 Russian Team Cup (Middleweight) Defeated Matvey Korobov (22-19)"

http://boxrec.com/media/index.php/Sergey_Kovalev

[Pigeons]

going by kovalevs boxrec wiki page:

"2004 Russian Team Cup (Middleweight) Defeated Matvey Korobov (22-19)"

http://boxrec.com/media/index.php/Sergey_Kovalev

I updated that based on information from this post from another forum (https://www.boxingforum24.com/threads/m ... t-17501045). I'm just unable to find any information about this tournament on the internet and I am unable to verify whether it occurred before or after the 2004 Russian Nationals which occurred Nov. 29-Dec. 5.