[5] Classified S1, the class for swimmers with the most severe disabilities, he competes in S1 and S2 events.

His car went off the road into a crowded bus stop and killed two people and also severely injured a third person, causing her to lose her right arm.

[7] In July 2010 he was convicted of negligent homicide, but was spared of prison sentence because of his severe disability.

[8] As of February 2013[update], Mamistvalov is IPC World Record holder in the S1 50m, 100m and 200m freestyle events.

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