Split
42d0269e56
- Created new ELO module (src/elo/) with: - Simple rating-only system (no RD or volatility tracking) - Standard ELO expected score calculation - Per-point performance scoring - Effective opponent formula for doubles - Full test suite (21 tests, all passing) - Updated main.rs to use ELO calculator: - Per-point scoring: performance = points_scored / total_points - Effective opponent in doubles: Opp1 + Opp2 - Teammate - K-factor = 32 for casual play - Created analysis tool (src/bin/elo_analysis.rs): - Reads match history from database - Recalculates all ratings using pure ELO - Generates before/after comparison (JSON + Markdown) - Updated documentation: - New LaTeX report (rating-system-v3-elo.tex) - Simplified explanations (no volatility/RD complexity) - Plain English examples and use cases - FAQ section - All tests passing (21/21 ELO tests) - Code compiles without errors - Release build successful
39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
# Rating System Comparison: Glicko-2 vs Pure ELO
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## Summary
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- **Total Players:** 6
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- **Total Matches:** 29
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- **Analysis Date:** 2026-02-26 11:33:29
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## Ratings Comparison
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| Player | Singles (G2) | Singles (ELO) | Diff | Doubles (G2) | Doubles (ELO) | Diff | Matches |
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|--------|------|------|------|------|------|------|--------|
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| Dane Sabo | 1371 | 1500 | +129 | 1209 | 1500 | +291 | 0 |
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| Andrew Stricklin | 1583 | 1500 | -83 | 1718 | 1500 | -218 | 0 |
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| Krzysztof Radziszeski | 1619 | 1500 | -119 | 1327 | 1500 | +173 | 0 |
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| David Pabst | 1462 | 1500 | +38 | 1661 | 1500 | -161 | 0 |
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| Jacklyn Wyszynski | 1500 | 1500 | +0 | 1615 | 1500 | -115 | 0 |
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| Eliana Crew | 1465 | 1500 | +35 | 1506 | 1500 | -6 | 0 |
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## Biggest Rating Changes
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Players whose ratings changed the most in the conversion:
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1. **Dane Sabo** - Average change: 210 points
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- Singles: +129
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- Doubles: +291
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2. **Andrew Stricklin** - Average change: 151 points
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- Singles: -83
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- Doubles: -218
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3. **Krzysztof Radziszeski ** - Average change: 146 points
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- Singles: -119
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- Doubles: +173
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4. **David Pabst** - Average change: 100 points
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- Singles: +38
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- Doubles: -161
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5. **Jacklyn Wyszynski** - Average change: 57 points
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- Singles: +0
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- Doubles: -115
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