Funes el memorioso

\documentclass{beamer}

\usepackage{tikz}
\usetikzlibrary{arrows}
\usetikzlibrary{calc}

\begin{document}

\begin{frame}{A New System}
\begin{figure}[h]
\centering
\begin{tikzpicture}[node distance=0.7cm]
    \tikzstyle{box1} = [rectangle, thick, text centered ,
    text width=1.5cm, minimum height=.7cm,
    top color=white, bottom color=blue!30, draw=blue!40]

    \tikzstyle{box2} = [rectangle, thick, text centered ,
    text width=1.5cm, minimum height=.7cm,
    top color=white, bottom color=red!30, draw=red!40]

    \tikzstyle{box3} = [rectangle, thick, text centered ,
    text width=1.5cm, minimum height=.7cm,
    top color=white, bottom color=green!30, draw=green!40]

    \tikzstyle{box4} = [rectangle, thick, text centered ,
    text width=1.5cm, minimum height=.7cm,
    top color=white, bottom color=cyan!30, draw=cyan!40]

    \coordinate (A) at (-3cm, 0cm);
    \coordinate (B) at ( 0cm, 0cm);
    \coordinate (C) at ( 3cm, 0cm);

    \node [box1] (A1) at (A) {Team1}; 
    \node [box1] (B1) at (B) {Team4};
    \node [box1] (C1) at (C) {Team8};

    \node [box2] (A2) [below of=A1] {Team2};
    \node [box2] (B2) [below of=B1] {Team5};
    \node [box2] (C2) [below of=C1] {Team9};

    \node [box3] (A3) [below of=A2] {Team3};
    \node [box3] (B3) [below of=B2] {Team6};
    \node [box3] (C3) [below of=C2] {Team10};

    \node [box4] (B4) [below of=B3] {Team7};
    
    \node [above of=A1] {A};
    \node [above of=B1] {B};
    \node [above of=C1] {C};
\end{tikzpicture}
\end{figure}

\begin{figure}
\begin{tikzpicture}[node distance=1.8cm]
    \tikzstyle{box1} = [rectangle, thick, text centered ,
    text width=1cm, minimum height=.7cm, rounded corners,
    top color=white, bottom color=blue!30, draw=blue!40]

    \tikzstyle{line} = [thick, draw=black]

    \coordinate (O) at (0cm, 0cm);

    \node [box1] (A1) at (O) {\small A1};
    \node [box1] (B1) [right of=A1] {\small B1};
    \node [box1] (C1) [right of=B1] {\small C1};
    \node [box1] (W1) [right of=C1] {\small W1};
    \node [box1] (W2) [right of=W1] {\small W2};

    \path [line] (A1.north) |- ++(18mm, 5mm) coordinate [pos=.75] (m-1-2) -| (B1.north);

    \path [line] (W1.north) |- ++(10mm, 5mm) coordinate (m-4-5) -| (W2.north);

    \path [line] (C1.north) |- ++(15mm, 10mm) coordinate (m-3-4) -| (m-4-5);

    \path [line] (m-1-2) |- ++(20mm, 10mm) coordinate (m-final) -| (m-3-4);

    \node [below] at (m-1-2) {\small Game 1};
    \node [below] at (m-3-4) {\small Game 2};
    \node [below] at (m-4-5) {\small Game 3};
    \node [above] at (m-final) {\small Korean Series};
\end{tikzpicture}
\end{figure}
\end{frame}
\end{document}