Official NHA Assessment
Race 9: PLAY 'N GO JET MASTER STAKES (Listed) (For all Horses)
Line Horse
Captain West
Reference for assessment
Exact Matches
4 / 10
Calculated = Official
Close Matches
4 / 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 Jet Force 3 60.0 1 0.00 4.0 115 111 111 -4 2 I Salute You 3 58.0 2 0.30 4.0 107 112 112 +5 3 Zeitz 3 54.0 3 0.60 4.0 101 104 104 +3 4 Gallic Dream 4 54.0 4 1.35 2.0 100 106 106 +6 5 Captain West 3 54.0 5 1.55 4.0 102 102 102 +0 6 Snow Pilot 2 60.0 6 2.05 0.0 122 122 122 +0 7 Otto Luyken 5 60.0 7 3.05 0.0 116 121 121 +5 8 Gem King 6 60.0 8 4.30 0.0 112 119 119 +7 9 Sugar Mountain 3 60.0 9 9.55 4.0 122 111 112 -10 99 Garrix 3 60.0 99 0.00 4.0 - 111 111 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Jet Force | 115 | 117 | 111 | +6 | 4.0 | - | |
| 2 | I Salute You | 107 | 112 | 112 | ✓ Match | 4.0 | - | |
| 3 | Zeitz | 101 | 104 | 104 | ✓ Match | 4.0 | - | |
| 4 | Gallic Dream | 100 | 102 | 106 | -4 | 2.0 | - | |
| 5 | Captain West Line | 102 | 102 | 102 | ✓ Match | 4.0 | ||
| 6 | Snow Pilot | 122 | 122 | 122 | ✓ Match | 0.0 | - | |
| 7 | Otto Luyken | 116 | 116 | 121 | -5 | 0.0 | - | |
| 8 | Gem King | 112 | 108 | 119 | -11 | 0.0 | - | |
| 9 | Sugar Mountain | 122 | 122 | 112 | +10 | 4.0 | - | |
| 99 | Garrix | - | 123 | 111 | +12 | 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