csgomatchhistory.js

var matchData = {
    "team": [
        {
            "id": "",
            "kills": "",
            "assists": "",
            "deaths": "",
            "mvps": "",
            "hs": "",
            "score": ""
        }
    ],
    "opponent": [
        {
            "id": "",
            "kills": "",
            "assists": "",
            "deaths": "",
            "mvps": "",
            "hs": "",
            "score": ""
        }
    ],
    "rounds_won": 3,
    "rounds_lost": 16
}

// We don't know which row would be ours.

function getTeamPlayerRows(matchRow) {
    var childElems = [... matchRow.children[1].children[0].children[0].children];
    return childElems.slice(1, 6);
}

function getOpponentPlayerRows(matchRow) {
    var childElems = [... matchRow.children[1].children[0].children[0].children];
    return childElems.slice(7, 12);
}

function getPlayerData(playerRow) {
    var mvps = parseInt(playerRow.children[5].innerText.slice(1));
    mvps = isNaN(mvps) ? 1 : mvps;
    return {
        "id": playerRow.getAttribute("data-steamid64"),
        "kills": parseInt(playerRow.children[2].innerText),
        "assists": parseInt(playerRow.children[3].innerText),
        "deaths": parseInt(playerRow.children[4].innerText),
        "mvps": mvps,
        "hs": parseInt(playerRow.children[6].innerText.slice(0, -1)),
        "score": parseInt(playerRow.children[7].innerText)
    }
}

var scoreRow = firstRow.children[1].children[0].children[0].children[6];