Official NHA Assessment
Race 5: ZULU KINGDOM EXPLORER GOLDEN SLIPPER (Grade 2) (For 2 yof R60 000 Win BSA Bonus Series)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
0 / 14
Within 2 points
Significant Diffs
12 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Ameena 2 60.0 1 0.00 0.0 - - - +0 2 Woodland Retreat 2 60.0 2 0.50 0.0 - - - +0 3 Time Fo Orchids 5 60.0 3 1.00 0.0 - - - +0 4 Ride On 2 60.0 4 2.05 0.0 - - - +0 5 Only Hearts 2 60.0 5 2.25 0.0 - - - +0 6 Antigua Night 2 60.0 6 2.85 0.0 - - - +0 7 Bevies Delight 5 60.0 7 2.95 0.0 - - - +0 8 Time For Glory 2 60.0 8 3.10 0.0 - - - +0 9 Sweet Pepper 2 60.0 9 3.80 0.0 - - - +0 10 Maharanee 2 60.0 10 4.50 0.0 - - - +0 11 Time Chaser 2 60.0 11 7.20 0.0 - - - +0 12 Roy's T's 2 60.0 12 12.40 0.0 - - - +0 99 Air Of Mystery 2 60.0 99 0.00 0.0 - - - +0 99 Certainly 2 60.0 99 0.00 0.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Ameena | - | 103 | - | +103 | 0.0 | - | |
| 2 | Woodland Retreat | - | 75 | - | +75 | 0.0 | - | |
| 3 | Time Fo Orchids | - | 109 | - | +109 | 0.0 | - | |
| 4 | Ride On | - | 87 | - | +87 | 0.0 | - | |
| 5 | Only Hearts | - | 81 | - | +81 | 0.0 | - | |
| 6 | Antigua Night | - | 97 | - | +97 | 0.0 | - | |
| 7 | Bevies Delight | - | 101 | - | +101 | 0.0 | - | |
| 8 | Time For Glory | - | 77 | - | +77 | 0.0 | - | |
| 9 | Sweet Pepper | - | 105 | - | +105 | 0.0 | - | |
| 10 | Maharanee | - | 110 | - | +110 | 0.0 | - | |
| 11 | Time Chaser | - | 65 | - | +65 | 0.0 | - | |
| 12 | Roy's T's | - | 59 | - | +59 | 0.0 | - | |
| 99 | Air Of Mystery | - | 87 | - | - | 0.0 | - | |
| 99 | Certainly | - | 80 | - | - | 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