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Sirio Costantini is a competitive kart racing driver from Italy, currently ranked #195 in the world in the KZ2 category with a WKR Rating of 25.3 from 1 counted races. Rankings by World Karting Rankings, updated August 3, 2026.
In the KZ2 world standings, Sirio currently sits P195 out of 286 ranked drivers, with a WKR Rating of 25.3 built from 1 counted races.
Sirio’s most recent final in our database was P19 at ACI ValVibrata 2026 R4 on 24 July 2026.
In the fight for KZ2 positions, Sirio trails Boccardi Leonardo Maria (P194) by 0.0 rating points and holds a 0.5-point margin over Derk Van Silfhout (P196).
Races this driver has competed in that are in our database and count toward their WKR rank — these are participations, not race results.
Sirio Costantini has 1 counted race participation across 1 event in KZ2 recorded in the WKR database. Sirio Costantini currently holds world rank #195 in KZ2 with a WKR Rating of 25.3. Compare with other drivers from Italy on the drivers list.
| Date | Race |
|---|---|
| 24 Jul 2026 | ACI ValVibrata 2026 R4 |