Official NHA Assessment
Race 2: JOBURG TOURISM COMPANY CONDITIONAL MAIDEN PLATE (Maidens placed 2nd-5th in either last 2 starts, max 4 runs)
Line Horse
Green Sapphire
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
0 / 18
Within 2 points
Significant Diffs
14 / 18
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Hong Kong 3 57.5 1 0.00 7.5 - - - +0 2 Green Sapphire 3 57.5 2 2.50 7.5 - - - +0 3 Roaming Spirit 3 57.5 3 3.25 7.5 80 - 79 -1 4 Gerbera 3 57.5 4 4.00 7.5 - - - +0 5 Lady Bomber 3 57.5 5 5.75 7.5 - - - +0 6 Espinoza 3 60.0 6 6.00 7.5 83 5 73 -10 7 Khichdi 3 60.0 7 6.25 7.5 75 5 65 -10 8 Kaleesh Cyborg 2 58.5 8 6.65 5.0 81 7 71 -10 9 Seventh Fleet 3 60.0 9 6.90 7.5 - 5 5 +5 10 Summer Winter 3 55.0 10 6.95 7.5 - -5 - +0 11 Gun Barrel 3 60.0 11 9.20 7.5 - 5 5 +5 12 Alesian Beau 3 60.0 12 9.40 7.5 - 5 5 +5 13 Green Street 3 57.5 13 10.00 7.5 - - - +0 14 Endizayo 3 57.5 14 15.25 7.5 78 - 65 -13 15 Dorset 3 60.0 15 18.50 7.5 71 5 61 -10 99 Hemisphere 3 60.0 99 0.00 7.5 - 5 5 +0 99 Flight Of A Condor 3 55.0 99 0.00 7.5 - -5 -5 +0 99 Komati River 3 57.5 99 0.00 7.5 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Hong Kong | - | 93 | - | +93 | 7.5 | - | |
| 2 | Green Sapphire Line | - | 109 | - | +109 | 7.5 | ||
| 3 | Roaming Spirit | 80 | 87 | 79 | +8 | 7.5 | - | |
| 4 | Gerbera | - | 98 | - | +98 | 7.5 | - | |
| 5 | Lady Bomber | - | 87 | - | +87 | 7.5 | - | |
| 6 | Espinoza | 83 | 97 | 73 | +24 | 7.5 | - | |
| 7 | Khichdi | 75 | 62 | 65 | -3 | 7.5 | - | |
| 8 | Kaleesh Cyborg | 81 | 75 | 71 | +4 | 5.0 | - | |
| 9 | Seventh Fleet | - | 66 | 5 | +61 | 7.5 | - | |
| 10 | Summer Winter | - | 78 | - | +78 | 7.5 | - | |
| 11 | Gun Barrel | - | 68 | 5 | +63 | 7.5 | - | |
| 12 | Alesian Beau | - | 66 | 5 | +61 | 7.5 | - | |
| 13 | Green Street | - | 66 | - | +66 | 7.5 | - | |
| 14 | Endizayo | 78 | 56 | 65 | -9 | 7.5 | - | |
| 15 | Dorset | 71 | 66 | 61 | +5 | 7.5 | - | |
| 99 | Hemisphere | - | 83 | 5 | +78 | 7.5 | - | |
| 99 | Flight Of A Condor | - | 85 | -5 | +90 | 7.5 | - | |
| 99 | Komati River | - | 93 | - | - | 7.5 | - |
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