Official NHA Assessment
Race 5: CHAMPION TRAINER: SEAN TARRY MAIDEN PLATE (F & M) (For Maiden F & M)
Line Horse
Rendevous In Rio
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
9 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Tuscan Romance 3 60.0 1 0.00 2.0 77 -2 - -77 2 Rendevous In Rio 2 60.0 2 4.25 1.0 - - - +0 3 Merryweather 2 57.0 3 4.35 1.0 - -6 - +0 4 Magic Carpet Ride 3 60.0 4 4.65 2.0 - -2 - +0 5 Shimmering 2 57.0 5 5.75 1.0 - -6 - +0 6 Sunfire 2 56.0 6 7.25 1.0 76 -8 66 -10 7 Leanne's Love 2 57.0 7 7.95 1.0 - -6 - +0 8 Lady William 3 60.0 8 8.20 2.0 - -2 - +0 9 Potato Salad 4 60.0 9 12.20 2.5 52 -3 42 -10 10 Doubleyouessbee 3 60.0 10 20.45 2.0 56 -2 46 -10 11 Hanifah 2 60.0 11 24.70 1.0 55 - 45 -10 12 Emerald Countess 2 57.0 12 25.45 1.0 - -6 - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Tuscan Romance | 77 | 86 | - | +86 | 2.0 | - | |
| 2 | Rendevous In Rio Line | - | 71 | - | +71 | 1.0 | ||
| 3 | Merryweather | - | 88 | - | +88 | 1.0 | - | |
| 4 | Magic Carpet Ride | - | 64 | - | +64 | 2.0 | - | |
| 5 | Shimmering | - | 74 | - | +74 | 1.0 | - | |
| 6 | Sunfire | 76 | 64 | 66 | -2 | 1.0 | - | |
| 7 | Leanne's Love | - | 58 | - | +58 | 1.0 | - | |
| 8 | Lady William | - | 59 | - | +59 | 2.0 | - | |
| 9 | Potato Salad | 52 | 47 | 42 | +5 | 2.5 | - | |
| 10 | Doubleyouessbee | 56 | 56 | 46 | +10 | 2.0 | - | |
| 11 | Hanifah | 55 | 48 | 45 | +3 | 1.0 | - | |
| 12 | Emerald Countess | - | 72 | - | +72 | 1.0 | - |
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