Official NHA Assessment
Race 3: GRADUATION HANDICAP (Maidens,1 & 2 time winners)
Line Horse
Sun Bird
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
5 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Coffeeberry 5 57.5 1 0.00 0.0 67 67 67 +0 2 Bruce's Spirit 6 60.0 2 2.00 0.0 64 75 75 +11 3 Sun Bird 3 59.0 3 5.50 4.0 62 62 62 +0 4 Days Gone By 3 57.5 4 8.00 4.0 59 59 59 +0 5 Chetan 3 53.5 5 9.75 4.0 51 51 51 +0 6 Queen Of Dallas 3 52.0 6 11.25 4.0 48 48 48 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Coffeeberry | 67 | 72 | 67 | +5 | 0.0 | - | |
| 2 | Bruce's Spirit | 64 | 55 | 75 | -20 | 0.0 | - | |
| 3 | Sun Bird Line | 62 | 87 | 62 | +25 | 4.0 | ||
| 4 | Days Gone By | 59 | 51 | 59 | -8 | 4.0 | - | |
| 5 | Chetan | 51 | 45 | 51 | -6 | 4.0 | - | |
| 6 | Queen Of Dallas | 48 | 40 | 48 | -8 | 4.0 | - |
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