Official NHA Assessment
Race 7: THE ROUND TABLE ZIMBABWE OAKS (L) (Oaks)
Line Horse
Walking Thru Time
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
2 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Coffeeberry 5 58.0 1 0.00 0.0 73 67 67 -6 2 Zavannahgold 2 58.0 2 1.50 0.0 81 72 72 -9 3 My Secret Place 5 58.0 3 2.75 0.0 59 70 70 +11 4 Bird In Space 2 58.0 4 4.75 0.0 66 67 67 +1 5 Walking Thru Time 3 58.0 5 6.25 1.5 64 64 64 +0 6 Nandine 3 58.0 6 11.25 1.5 59 64 64 +5 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Coffeeberry | 73 | 72 | 67 | +5 | 0.0 | - | |
| 2 | Zavannahgold | 81 | 78 | 72 | +6 | 0.0 | - | |
| 3 | My Secret Place | 59 | 71 | 70 | +1 | 0.0 | - | |
| 4 | Bird In Space | 66 | 66 | 67 | -1 | 0.0 | - | |
| 5 | Walking Thru Time Line | 64 | 73 | 64 | +9 | 1.5 | ||
| 6 | Nandine | 59 | 60 | 64 | -4 | 1.5 | - |
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