Generating scoreboards

In jungleville, head-to-head matchups are a regular affair. Scoreboards can be used to keep track of competition and who has won.

What does the scoreboard for user_id=0004 look like?

SELECT stats.uuid AS player, hist.uuid AS opponent, 
    SUM(CASE WHEN hist.result = "won" THEN 1 ELSE 0 END) AS wins, 
    SUM(CASE WHEN hist.result = "lost" THEN 1 ELSE 0 END) AS losses
FROM jungleville_stats AS stats 
    KEY "zid-jungle-stats-0004" 
UNNEST stats.pvp-hist AS hist
GROUP BY stats.uuid, hist.uuid