Official NHA Assessment
Race 3: COME RACING AT BORROWDALE PARK MERIT RATED 75 HANDICAP (Open)
Line Horse
Kallipos
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
3 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Ultimate Jewel 5 60.0 1 0.00 0.0 75 79 75 +0 2 Jusrite 3 56.0 2 0.75 2.0 67 67 67 +0 3 Kallipos 3 58.5 3 3.25 2.0 72 72 72 +0 4 Gypsy Express 5 57.5 4 4.25 0.0 70 74 74 +4 5 Red Top 5 57.5 5 5.25 0.0 70 74 74 +4 6 Il Combattente 3 52.0 6 5.30 2.0 46 59 59 +13 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Ultimate Jewel | 75 | 80 | 75 | +5 | 0.0 | - | |
| 2 | Jusrite | 67 | 68 | 67 | +1 | 2.0 | - | |
| 3 | Kallipos Line | 72 | 63 | 72 | -9 | 2.0 | ||
| 4 | Gypsy Express | 70 | 58 | 74 | -16 | 0.0 | - | |
| 5 | Red Top | 70 | 70 | 74 | -4 | 0.0 | - | |
| 6 | Il Combattente | 46 | 46 | 59 | -13 | 2.0 | - |
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