Official NHA Assessment
Race 5: #destinationcaperacing MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Doitwithdiamonds
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
5 / 14
Within 2 points
Significant Diffs
7 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Basic Maneuvers 2 60.0 1 0.00 0.0 76 73 73 -3 2 Heliotrope 3 60.0 2 2.25 5.0 73 66 66 -7 3 Princess Of Bayeux 2 60.0 3 3.00 0.0 64 75 75 +11 4 Ticking Bomb 3 60.0 4 4.25 5.0 76 64 66 -10 5 English Mistress 4 60.0 5 5.25 2.5 79 68 69 -10 6 Doitwithdiamonds 4 60.0 6 6.75 2.5 68 68 68 +0 7 Whistling Dixie (IR 4 60.0 7 7.50 2.5 69 68 68 -1 8 Lucky Thirteen 4 60.0 8 7.90 2.5 - 68 68 +68 9 La Pequenita 3 60.0 9 9.15 5.0 72 63 63 -9 10 Breede Baby 3 60.0 10 10.40 5.0 - 63 63 +63 11 Kosuke 3 60.0 11 11.40 5.0 - 63 63 +63 12 Hokaai My Meisie 2 60.0 12 14.40 0.0 63 73 73 +10 13 Dymondia 2 60.0 13 18.90 0.0 73 73 73 +0 14 Analytic 2 60.5 14 99.99 0.0 77 74 74 -3 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Basic Maneuvers | 76 | 79 | 73 | +6 | 0.0 | - | |
| 2 | Heliotrope | 73 | 67 | 66 | +1 | 5.0 | - | |
| 3 | Princess Of Bayeux | 64 | 75 | 75 | ✓ Match | 0.0 | - | |
| 4 | Ticking Bomb | 76 | 70 | 66 | +4 | 5.0 | - | |
| 5 | English Mistress | 79 | 70 | 69 | +1 | 2.5 | - | |
| 6 | Doitwithdiamonds Line | 68 | 99 | 68 | +31 | 2.5 | ||
| 7 | Whistling Dixie (IRE) | 69 | 66 | 68 | -2 | 2.5 | - | |
| 8 | Lucky Thirteen | - | 49 | 68 | -19 | 2.5 | - | |
| 9 | La Pequenita | 72 | 62 | 63 | -1 | 5.0 | - | |
| 10 | Breede Baby | - | 60 | 63 | -3 | 5.0 | - | |
| 11 | Kosuke | - | 50 | 63 | -13 | 5.0 | - | |
| 12 | Hokaai My Meisie | 63 | 63 | 73 | -10 | 0.0 | - | |
| 13 | Dymondia | 73 | 49 | 73 | -24 | 0.0 | - | |
| 14 | Analytic | 77 | 54 | 74 | -20 | 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