Official NHA Assessment
Race 8: BETWAY IPI TOMBE CHALLENGE (Grade 2) (For Fillies and Mares)
Line Horse
Homely Girl
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
6 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Gimme A Shot 2 52.0 1 0.00 0.0 102 106 106 +4 2 Under Your Spell 3 60.0 2 3.50 7.0 119 109 109 -10 3 Feather Boa 2 52.0 3 4.00 0.0 108 107 107 -1 4 Marigold Hotel 3 59.0 4 4.25 7.0 110 107 107 -3 5 Homely Girl 3 60.0 5 4.30 7.0 108 108 108 +0 6 Miss Daisy 2 52.0 6 5.00 0.0 108 106 106 -2 7 Perfect Witness 3 59.0 7 7.50 7.0 106 106 106 +0 8 Admire Me 4 59.0 8 9.00 4.0 96 112 112 +16 9 Captain Peg 5 52.0 9 9.25 0.0 106 106 106 +0 10 Ululate 4 59.0 10 19.00 4.0 94 112 112 +18 11 Gilded Butterfly 3 59.0 11 99.99 7.0 100 106 106 +6 99 Bold Fortune 4 60.0 99 0.00 4.0 - 114 114 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Gimme A Shot | 102 | 110 | 106 | +4 | 0.0 | - | |
| 2 | Under Your Spell | 119 | 113 | 109 | +4 | 7.0 | - | |
| 3 | Feather Boa | 108 | 114 | 107 | +7 | 0.0 | - | |
| 4 | Marigold Hotel | 110 | 107 | 107 | ✓ Match | 7.0 | - | |
| 5 | Homely Girl Line | 108 | 99 | 108 | -9 | 7.0 | ||
| 6 | Miss Daisy | 108 | 108 | 106 | +2 | 0.0 | - | |
| 7 | Perfect Witness | 106 | 105 | 106 | -1 | 7.0 | - | |
| 8 | Admire Me | 96 | 85 | 112 | -27 | 4.0 | - | |
| 9 | Captain Peg | 106 | 100 | 106 | -6 | 0.0 | - | |
| 10 | Ululate | 94 | 80 | 112 | -32 | 4.0 | - | |
| 11 | Gilded Butterfly | 100 | 108 | 106 | +2 | 7.0 | - | |
| 99 | Bold Fortune | - | 83 | 114 | -31 | 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