function buildEntries(nation: Nation, week: WRankWeek): LeaderboardEntry[] {
   const wRankEntries = WRank.entriesForNation(nation, week);

   return wRankEntries.map((wr): LeaderboardEntry => {
     const char = wr.character;
 
     // Aggregate K/D and stats from all active slots this week
     let totalKills  = 0;
     let totalDeaths = 0;
     let totalAtk    = 0;
     let totalDef    = 0;
     let totalHeal   = 0;
 
     for (const historyKey of (WRank.currentWeek().scoreIndex[char.name] ?? [])) {
       const score = Score.get({
         character: char,
         slot:        TGKey.parse(historyKey as TGKey).slot,
         historyKey:  historyKey as TGKey,
       });
       if (!score) continue;
       totalKills  += score.k  ?? 0;
       totalDeaths += score.d  ?? 0;
       totalAtk    += score.atk  ?? 0;
       totalDef    += score.def  ?? 0;
       totalHeal   += score.heal ?? 0;
     }
 
     return {
       character:    char,
       weeklyPts:    wr.weeklyPoints,
       tgCount:      wr.tgCount,
       totalKills,
       totalDeaths,
       stats: {
          atk:          totalAtk  || undefined,
          def:          totalDef  || undefined,
          heal:         totalHeal || undefined,
       },
       currentRank:  wr.currentRank,
       previousRank: wr.previousRank,
       leavesCount:  Leaves.countForChar({ characterName: char.name }),
     };
   });
 }