Kelvin Tsz Chung Sham, who competes as MadDogg9, is a 22-year-old bot laner from Hong Kong currently signed to Viper Night Raider in the PCS. The Pacific Championship Series serves as the premier competitive circuit for the region, drawing talent from across Southeast Asia and beyond, and MadDogg9 has established himself as one of its marksman prospects.
The bot lane carry, or ADC, is tasked with converting gold and farm into the sustained damage that wins the late game. It is a role of scaling and positioning, where a single misstep in a teamfight can undo an entire game’s worth of accumulated advantage. MadDogg9’s pool leans into the high-skill, high-reward end of the marksman spectrum. Aphelios and Kalista are notoriously mechanically demanding champions that reward precise execution, while Kai’Sa offers flexibility across itemization paths. Draven, meanwhile, is the ultimate expression of aggressive early-game bravado, rewarding players who can snowball a lead from the opening minutes.
Choosing champions like Aphelios and Draven signals a player confident in his mechanical ceiling and willing to shoulder the responsibility of being his team’s primary damage dealer. These picks are not forgiving, and a bot laner who commits to them is betting on his own consistency under pressure. For Viper Night Raider, MadDogg9 represents the kind of carry threat that can tilt the balance of a series when he finds his rhythm.
At 22, he sits at an age where many marksmen begin to hit their competitive stride, blending youthful reflexes with the accumulated experience of the regional grind. The PCS has historically been a proving ground for players who go on to broader international exposure, and consistent performances in the league can open doors to larger stages.
As an active player, MadDogg9’s story is still being written. His trajectory will depend on how well he continues to synergize with his support and how reliably he can carry the burden of late-game damage. For followers of Hong Kong and Pacific League of Legends, he is a name that carries genuine upside heading into the seasons ahead.
MadDogg9 (Kelvin Tsz Chung Sham) is 22 years old, born April 17, 2004.
MadDogg9 currently plays as Bot / ADC for Viper Night Raider in the PCS.
MadDogg9 is best known for Aphelios, Kalista, Kai'Sa, Draven.

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