Fantasy Points Scoring Calculator: Roto vs. Points League Value Comparison
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Fantasy Points Scoring Calculator: Roto vs. Points League Value Comparison
Compare a player's value in a Rotisserie (Roto) league versus a Points-based fantasy league. Enter batting statistics and scoring settings to see which format rewards the player more.
### Player Statistics
Batting Average (AVG)
Home Runs (HR)
RBI
Runs Scored (R)
Stolen Bases (SB)
At Bats (AB)
Hits (H)
Doubles (2B)
Triples (3B)
Walks (BB)
### Roto League Settings (Category Weights)
Enter the relative weight (importance) for each Roto category (1–10 scale). These simulate how your league values each category.
AVG Weight
HR Weight
RBI Weight
R Weight
SB Weight
### Points League Scoring Settings
Enter points awarded per occurrence for each stat.
Points per Hit (H)
Points per Double (2B)
Points per Triple (3B)
Points per HR
Points per RBI
Points per Run
Points per SB
Points per BB
Calculate Value Comparison
function fanCalc() { // --- Gather player stats --- var avg = parseFloat(document.getElementById('fan-avg').value); var hr = parseFloat(document.getElementById('fan-hr').value); var rbi = parseFloat(document.getElementById('fan-rbi').value); var r = parseFloat(document.getElementById('fan-r').value); var sb = parseFloat(document.getElementById('fan-sb').value); var ab = parseFloat(document.getElementById('fan-ab').value); var h = parseFloat(document.getElementById('fan-h').value); var d2b = parseFloat(document.getElementById('fan-2b').value); var d3b = parseFloat(document.getElementById('fan-3b').value); var bb = parseFloat(document.getElementById('fan-bb').value);
// --- Roto weights --- var wAvg = parseFloat(document.getElementById('fan-w-avg').value); var wHr = parseFloat(document.getElementById('fan-w-hr').value); var wRbi = parseFloat(document.getElementById('fan-w-rbi').value); var wR = parseFloat(document.getElementById('fan-w-r').value); var wSb = parseFloat(document.getElementById('fan-w-sb').value);
// --- Points settings --- var ptH = parseFloat(document.getElementById('fan-pt-h').value); var pt2b = parseFloat(document.getElementById('fan-pt-2b').value); var pt3b = parseFloat(document.getElementById('fan-pt-3b').value); var ptHr = parseFloat(document.getElementById('fan-pt-hr').value); var ptRbi = parseFloat(document.getElementById('fan-pt-rbi').value); var ptR = parseFloat(document.getElementById('fan-pt-r').value); var ptSb = parseFloat(document.getElementById('fan-pt-sb').value); var ptBb = parseFloat(document.getElementById('fan-pt-bb').value);
// --- Validation --- var fields = [avg, hr, rbi, r, sb, ab, h, d2b, d3b, bb, wAvg, wHr, wRbi, wR, wSb, ptH, pt2b, pt3b, ptHr, ptRbi, ptR, ptSb, ptBb]; for (var i = 0; i Please fill in all fields with valid numbers.'; return; } } if (avg 1) { document.getElementById('fan-result').innerHTML = 'Batting Average must be between 0 and 1 (e.g. 0.285).'; return; } if (ab At Bats must be greater than 0.'; return; } if (h > ab) { document.getElementById('fan-result').innerHTML = 'Hits cannot exceed At Bats.'; return; } if (wAvg 10 || wHr > 10 || wRbi > 10 || wR > 10 || wSb > 10) { document.getElementById('fan-result').innerHTML = 'Roto weights must be between 1 and 10.'; return; }
// ===================================================================== // ROTO SCORE CALCULATION // Roto leagues rank players across categories. We simulate a normalized // score per category using benchmark "elite" values, then weight them. // // Normalized Category Score = (PlayerStat / BenchmarkEliteStat) * Weight // Roto Total Score = Sum of all normalized weighted category scores // Roto Score is then expressed as a percentage of maximum possible score. // // Benchmark elite values (approximate MLB top-tier season): // AVG: 0.320, HR: 45, RBI: 130, R: 120, SB: 40 // ===================================================================== var benchAvg = 0.320; var benchHr = 45; var benchRbi = 130; var benchR = 120; var benchSb = 40;
var normAvg = Math.min(avg / benchAvg, 1.5); var normHr = Math.min(hr / benchHr, 1.5); var normRbi = Math.min(rbi / benchRbi, 1.5); var normR = Math.min(r / benchR, 1.5); var normSb = Math.min(sb / benchSb, 1.5);
var rotoRaw = (normAvg * wAvg) + (normHr * wHr) + (normRbi * wRbi) + (normR * wR) + (normSb * wSb);
var rotoMax = 1.5 * (wAvg + wHr + wRbi + wR + wSb); var rotoScore = (rotoRaw / rotoMax) * 100;
// ===================================================================== // POINTS LEAGUE CALCULATION // Total Points = HptH + 2Bpt2b + 3Bpt3b + HRptHr + // RBIptRbi + RptR + SBptSb + BBptBb // // Note: In most points leagues, extra-base hits earn ADDITIONAL points // on top of the base hit point. So a double earns ptH + pt2b, etc. // ===================================================================== var singles = h - d2b - d3b - hr; if (singles 0 ? totalPoints / gamesEstimate : 0;
// ===================================================================== // VALUE COMPARISON // Normalize points score to 0-100 scale using a benchmark elite total // Benchmark elite points season (using default scoring): // ~157H, 30 2B, 3 3B, 45 HR, 130 RBI, 120 R, 40 SB, 70 BB // ===================================================================== var benchSingles = 157 - 30 - 3 - 45; var benchPoints = (benchSingles * ptH) + (30 * (ptH + pt2b)) + (3 * (ptH + pt3b)) + (45 * (ptH + ptHr)) + (130 * ptRbi) + (120 * ptR) + (40 * ptSb) + (70 * ptBb);
var pointsScore = benchPoints > 0 ? Math.min((totalPoints / benchPoints) * 100, 150) : 0;
// Determine which format favors the player var diff = pointsScore - rotoScore; var verdict = ''; var verdictColor = ''; if (Math.abs(diff) 0) { verdict = 'This player is more valuable in a Points League (+' + diff.toFixed(1) + ' pts advantage).'; verdictColor = '#1a7a3c'; } else { verdict = 'This player is more valuable in a Roto League (+' + Math.abs(diff).toFixed(1) + ' pts advantage).'; verdictColor = '#1a3c7a'; }
// Category breakdown for Roto var catBreakdown = 'AVG (' + avg.toFixed(3) + ')' + (normAvg100).toFixed(1) + '%' + wAvg + '' + (normAvgwAvg).toFixed(2) + '' + 'HR (' + hr + ')' + (normHr100).toFixed(1) + '%' + wHr + '' + (normHrwHr).toFixed(2) + '' + 'RBI (' + rbi + ')' + (normRbi100).toFixed(1) + '%' + wRbi + '' + (normRbiwRbi).toFixed(2) + '' + 'R (' + r + ')' + (normR100).toFixed(1) + '%' + wR + '' + (normRwR).toFixed(2) + '' + 'SB (' + sb + ')' + (normSb100).toFixed(1) + '%' + wSb + '' + (normSbwSb).toFixed(2) + '';
// Points breakdown var ptBreakdown = 'Singles (' + singles + ')' + ptH + '' + (singlesptH).toFixed(1) + '' + 'Doubles (' + d2b + ')' + (ptH+pt2b) + '' + (d2b(ptH+pt2b)).toFixed(1) + '' + 'Triples (' + d3b + ')' + (ptH+pt3b) + '' + (d3b(ptH+pt3b)).toFixed(1) + '' + 'Home Runs (' + hr + ')' + (ptH+ptHr) + '' + (hr(ptH+ptHr)).toFixed(1) + '' + 'RBI (' + rbi + ')' + ptRbi + '' + (rbiptRbi).toFixed(1) + '' + 'Runs (' + r + ')' + ptR + '' + (rptR).toFixed(1) + '' + 'SB (' + sb + ')' + ptSb + '' + (sbptSb).toFixed(1) + '' + 'BB (' + bb + ')' + ptBb + '' + (bbptBb).toFixed(1) + '';
document.getElementById('fan-result').innerHTML = '### Results ' + '' + '' + verdict + '
' + '' +
'' + '' + 'Roto Value Score' + '' + rotoScore.toFixed(1) + '' + 'out of 100 (normalized)' + '' + '' + 'Points League Score' + '' + pointsScore.toFixed(1) + '' + 'out of 100 (normalized)' + '' + '' + 'Total Fantasy Points' + '' + totalPoints.toFixed(1) + '' + '' + pointsPerGame.toFixed(2) + ' pts/game est.' + '' + '' +
'#### Roto Category Breakdown ' + '' + '' + 'Category' + '% of Elite' + 'Weight' + 'Weighted Score' + '' + '' + catBreakdown + '' + '' + 'Roto Raw Score' + '' + rotoRaw.toFixed(2) + ' / ' + rotoMax.toFixed(2) + '' + '' + '' +
'#### Points League Breakdown ' + '' + '' + 'Stat' + 'Pts Each' + 'Subtotal' + '' + '' + ptBreakdown + '' + '' + 'Total Points' + '' + totalPoints.toFixed(1) + '' + '' + ''; }
#### Formulas Used
Roto Value Score:
Points League Score:
Value Comparison: Difference = Points Score − Roto Score. Positive = Points league favors player; Negative = Roto league favors player.
#### Assumptions & References
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