Official NHA Assessment
Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)
Line Horse
Impersonation
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
1 / 18
Within 2 points
Significant Diffs
13 / 18
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Three Strands 3 59.0 1 0.00 6.0 - - - +0 2 Memorial Day 2 59.0 2 2.25 0.0 71 15 61 -10 3 Rosslyne 2 59.0 3 3.25 0.0 75 14 65 -10 4 Impersonation 3 59.0 4 5.50 6.0 - - - +0 5 Sassy 2 59.0 5 6.00 0.0 64 12 54 -10 6 Impression 3 55.0 6 6.25 6.0 - -8 - +0 7 Kit Kat Katie 2 59.0 7 7.00 0.0 66 12 56 -10 8 Ponderosa Pine 2 59.0 8 7.05 0.0 67 12 57 -10 9 Red Maple 3 59.0 9 7.75 6.0 - - - +0 10 Antananarivo 4 60.0 10 8.25 3.0 - 8 8 +8 11 Fiery Cliffs 3 59.0 11 8.50 6.0 - - - +0 12 Allthewayfromusa 2 59.0 12 10.50 0.0 70 12 60 -10 13 Dusky Rose 3 59.0 13 11.75 6.0 - - - +0 14 Coffee In Seattle 3 56.5 14 13.00 6.0 68 -5 58 -10 15 Eden Of Africa 3 59.0 15 15.25 6.0 - - - +0 16 Street's Ahead 2 59.0 16 18.00 0.0 58 12 48 -10 99 Nordic View 3 59.0 99 0.00 6.0 - - - +0 99 Perform 2 59.0 99 0.00 0.0 - 12 12 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Three Strands | - | 74 | - | +74 | 6.0 | - | |
| 2 | Memorial Day | 71 | 49 | 61 | -12 | 0.0 | - | |
| 3 | Rosslyne | 75 | 58 | 65 | -7 | 0.0 | - | |
| 4 | Impersonation Line | - | 68 | - | +68 | 6.0 | ||
| 5 | Sassy | 64 | 55 | 54 | +1 | 0.0 | - | |
| 6 | Impression | - | 51 | - | +51 | 6.0 | - | |
| 7 | Kit Kat Katie | 66 | 60 | 56 | +4 | 0.0 | - | |
| 8 | Ponderosa Pine | 67 | 63 | 57 | +6 | 0.0 | - | |
| 9 | Red Maple | - | 107 | - | +107 | 6.0 | - | |
| 10 | Antananarivo | - | 57 | 8 | +49 | 3.0 | - | |
| 11 | Fiery Cliffs | - | 60 | - | +60 | 6.0 | - | |
| 12 | Allthewayfromusa | 70 | 57 | 60 | -3 | 0.0 | - | |
| 13 | Dusky Rose | - | 58 | - | +58 | 6.0 | - | |
| 14 | Coffee In Seattle | 68 | 54 | 58 | -4 | 6.0 | - | |
| 15 | Eden Of Africa | - | 55 | - | +55 | 6.0 | - | |
| 16 | Street's Ahead | 58 | 55 | 48 | +7 | 0.0 | - | |
| 99 | Nordic View | - | 59 | - | - | 6.0 | - | |
| 99 | Perform | - | 54 | 12 | +42 | 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