Official NHA Assessment
Race 7: BOOK FOR JULY DAY IN JOZI 0116811796 PINNACLE STAKES (For all horses)
Line Horse
Unzen
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
4 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Texas Red 5 56.0 1 0.00 0.0 104 107 107 +3 2 Mrs Geriatrix 2 56.5 2 2.90 0.0 112 110 110 -2 3 On The Horizon 4 52.5 3 3.00 0.5 96 101 101 +5 4 Unzen 3 58.0 4 4.00 1.5 109 109 109 +0 5 Cliff Hanger 2 56.0 5 4.90 0.0 106 107 107 +1 6 Captain Peg 5 56.5 6 6.50 0.0 107 108 108 +1 7 Good Queen Bess (GB 4 52.5 7 7.30 0.5 97 99 99 +2 8 Forever Mine 4 58.0 8 7.80 0.5 107 110 110 +3 9 Quantum Theory 5 60.0 9 15.00 0.0 112 115 115 +3 10 Anfields Rocket 5 60.0 10 16.25 0.0 113 115 115 +2 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Texas Red | 104 | 119 | 107 | +12 | 0.0 | - | |
| 2 | Mrs Geriatrix | 112 | 112 | 110 | +2 | 0.0 | - | |
| 3 | On The Horizon | 96 | 100 | 101 | -1 | 0.5 | - | |
| 4 | Unzen Line | 109 | 116 | 109 | +7 | 1.5 | ||
| 5 | Cliff Hanger | 106 | 111 | 107 | +4 | 0.0 | - | |
| 6 | Captain Peg | 107 | 100 | 108 | -8 | 0.0 | - | |
| 7 | Good Queen Bess (GB) | 97 | 97 | 99 | -2 | 0.5 | - | |
| 8 | Forever Mine | 107 | 105 | 110 | -5 | 0.5 | - | |
| 9 | Quantum Theory | 112 | 112 | 115 | -3 | 0.0 | - | |
| 10 | Anfields Rocket | 113 | 106 | 115 | -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