Official NHA Assessment

Race 1: GALLOP TV YOUTUBE CHANNEL OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares.)

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Line Horse
Dynasty's Last
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
8 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    My Siraya            3    55.0    1    0.00     5.0   62    43           43    -19
2    Di Rosa              4    57.5    2    1.40     6.0   60    46           50    -10
3    Dynasty's Last       5    53.5    3    3.00     0.0   50    50           50    +0
4    Diamond Dash         2    55.0    4    3.70     3.5   61    46           51    -10
5    Lightinthedarkness   3    52.5    5    5.50     5.0   57    38           47    -10
6    Roy's Grace          4    61.5    6    5.70     6.0   68    54           58    -10
7    Twiceascore          3    60.5    7    8.50     5.0   -     54           54    +54
8    Kesari               3    60.5    8    11.30    5.0   -     54           54    +54
9    Take Note            2    56.5    9    12.50    3.5   64    49           54    -10
10   Predator's Suprise   3    58.5    10   13.60    5.0   69    50           59    -10
11   Matt Attack          3    60.5    11   17.20    5.0   -     54           54    +54
12   Noble Blue           3    59.0    12   22.90    5.0   -     51           51    +51
99   Bella's Charm        3    53.5    99   0.00     5.0   -     40           40    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 My Siraya 62 70 43 +27 5.0 -
2 Di Rosa 60 54 50 +4 6.0 -
3 Dynasty's Last Line 50 61 50 +11 0.0
4 Diamond Dash 61 61 51 +10 3.5 -
5 Lightinthedarkness 57 59 47 +12 5.0 -
6 Roy's Grace 68 63 58 +5 6.0 -
7 Twiceascore - 57 54 +3 5.0 -
8 Kesari - 62 54 +8 5.0 -
9 Take Note 64 58 54 +4 3.5 -
10 Predator's Suprise 69 56 59 -3 5.0 -
11 Matt Attack - 38 54 -16 5.0 -
12 Noble Blue - 17 51 -34 5.0 -
99 Bella's Charm - 59 40 +19 5.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. 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