Official NHA Assessment
Race 6: TAB.CO.ZA PINNACLE STAKES (Open to all horses)
Line Horse
Texas Red
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Argo Alley 2 54.0 1 0.00 0.0 107 103 103 -4 2 Texas Red 5 60.0 2 1.00 0.0 119 119 119 +0 3 Musical Score 3 54.0 3 1.20 6.0 109 95 99 -10 4 Taegan's Champ 3 49.5 4 1.80 6.0 105 85 95 -10 5 That's My Baby 2 48.5 5 1.90 0.0 101 95 95 -6 6 Hotarubi 4 52.0 6 5.20 3.0 104 93 94 -10 99 Navajo Nation 4 52.0 99 0.00 3.0 - 93 93 +0 99 Red Bomber 2 50.0 99 0.00 0.0 - 95 95 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Argo Alley | 107 | 110 | 103 | +7 | 0.0 | - | |
| 2 | Texas Red Line | 119 | 119 | 119 | ✓ Match | 0.0 | ||
| 3 | Musical Score | 109 | 107 | 99 | +8 | 6.0 | - | |
| 4 | Taegan's Champ | 105 | 103 | 95 | +8 | 6.0 | - | |
| 5 | That's My Baby | 101 | 97 | 95 | +2 | 0.0 | - | |
| 6 | Hotarubi | 104 | 98 | 94 | +4 | 3.0 | - | |
| 99 | Navajo Nation | - | 104 | 93 | +11 | 3.0 | - | |
| 99 | Red Bomber | - | 86 | 95 | -9 | 0.0 | - |
Assessment Methodology
Calculation Steps:
- Identify Line Horse - consistent performer used as reference
- Calculate WFA Allowance based on age, distance, and month
- Apply Drag Adjustment for beaten margin
- Calculate Actual Weight Performance:
Weight - Drag - WFA - Compare to Line Horse to determine race rating
- Apply special rules (maiden caps, layoff allowance)
Key Formulas:
- Drag Effect: Varies by distance (see Benchmarks page)
- 1 length ≈ 1kg at 1 mile (1600m)
- WFA Scale: Based on Admiral Rous's 1855 table
- Rating Points: 1kg = 2 rating points