Official NHA Assessment
Race 2: Call now! Or play online. www.trackandball.co.za CONDITIONAL MAIDEN (Maidens with 3 runs or more & Nett Rating of 71 or
Line Horse
Queen Jackson
Reference for assessment
Exact Matches
2 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Fields Of Green 2 60.0 1 0.00 0.0 70 63 63 -7 2 Sky Velocity 5 58.0 2 1.20 0.0 65 63 63 -2 3 Lady Is A Champ 2 57.0 3 3.50 0.0 62 58 58 -4 4 Queen Jackson 3 56.0 4 3.75 3.0 50 50 50 +0 5 Dapperfontein 2 56.0 5 6.05 0.0 57 55 55 -2 6 What A Piddy 3 56.0 6 12.95 3.0 45 49 49 +4 99 Aleeyah's Unicorn 2 54.5 99 0.00 0.0 - 52 52 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Fields Of Green | 70 | 69 | 63 | +6 | 0.0 | - | |
| 2 | Sky Velocity | 65 | 57 | 63 | -6 | 0.0 | - | |
| 3 | Lady Is A Champ | 62 | 57 | 58 | -1 | 0.0 | - | |
| 4 | Queen Jackson Line | 50 | 50 | 50 | ✓ Match | 3.0 | ||
| 5 | Dapperfontein | 57 | 47 | 55 | -8 | 0.0 | - | |
| 6 | What A Piddy | 45 | 45 | 49 | -4 | 3.0 | - | |
| 99 | Aleeyah's Unicorn | - | 52 | 52 | ✓ Match | 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