Official NHA Assessment
Race 9: BATTLE FORCE (2021) FM 74 HANDICAP (F & M) (For Fillies and Mares)
Line Horse
Lady Serena
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
3 / 18
Within 2 points
Significant Diffs
10 / 18
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Burmese Tiara 4 56.0 1 0.00 0.5 66 68 66 +0 2 Flashy Kaitrina 5 58.0 2 1.80 0.0 70 76 76 +6 3 Lady Serena 3 59.5 3 2.55 1.0 76 76 76 +0 4 Family Favourite 3 55.0 4 3.25 1.0 67 67 67 +0 5 Grue Of Ice 6 56.5 5 3.35 0.0 70 71 71 +1 6 Big City Girl 4 57.5 6 3.75 0.5 69 72 72 +3 7 Lazuli 3 59.0 7 3.80 1.0 75 74 74 -1 8 Birdwatcher 5 54.5 8 4.20 0.0 63 67 67 +4 9 Venturous 3 52.5 9 4.60 1.0 62 60 60 -2 10 Mvulazana 3 59.0 10 6.00 1.0 75 73 73 -2 11 Lady Tiptree 3 59.0 11 6.90 1.0 75 73 73 -2 12 Owlette 4 53.0 12 7.05 0.5 60 62 62 +2 13 Snow Tune 3 57.0 13 7.65 1.0 71 69 69 -2 14 Natasia 3 57.5 14 8.05 1.0 72 70 70 -2 15 Shell Seeker 3 60.0 15 8.10 1.0 77 75 75 -2 99 Kingsmeads Krystl 3 52.0 99 0.00 1.0 - 59 59 +0 99 Lady Macbeth 3 58.0 99 0.00 1.0 - 71 71 +0 99 Quickstep Lady 5 61.5 99 0.00 0.0 - 80 80 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Burmese Tiara | 66 | 68 | 66 | +2 | 0.5 | - | |
| 2 | Flashy Kaitrina | 70 | 82 | 76 | +6 | 0.0 | - | |
| 3 | Lady Serena Line | 76 | 80 | 76 | +4 | 1.0 | ||
| 4 | Family Favourite | 67 | 69 | 67 | +2 | 1.0 | - | |
| 5 | Grue Of Ice | 70 | 53 | 71 | -18 | 0.0 | - | |
| 6 | Big City Girl | 69 | 59 | 72 | -13 | 0.5 | - | |
| 7 | Lazuli | 75 | 71 | 74 | -3 | 1.0 | - | |
| 8 | Birdwatcher | 63 | 53 | 67 | -14 | 0.0 | - | |
| 9 | Venturous | 62 | 66 | 60 | +6 | 1.0 | - | |
| 10 | Mvulazana | 75 | 82 | 73 | +9 | 1.0 | - | |
| 11 | Lady Tiptree | 75 | 68 | 73 | -5 | 1.0 | - | |
| 12 | Owlette | 60 | 56 | 62 | -6 | 0.5 | - | |
| 13 | Snow Tune | 71 | 65 | 69 | -4 | 1.0 | - | |
| 14 | Natasia | 72 | 60 | 70 | -10 | 1.0 | - | |
| 15 | Shell Seeker | 77 | 62 | 75 | -13 | 1.0 | - | |
| 99 | Kingsmeads Krystl | - | 68 | 59 | +9 | 1.0 | - | |
| 99 | Lady Macbeth | - | 68 | 71 | -3 | 1.0 | - | |
| 99 | Quickstep Lady | - | 78 | 80 | -2 | 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