Official NHA Assessment

Race 3: TAB TELEBET 0861 000 822 MAIDEN PLATE (For all Maidens)

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Line Horse
Donny's Boy
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
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    Union Rose           3    57.0    1    0.00     9.0   75    -2           -     -75
2    Anchor Man           4    60.0    2    2.25     7.0   56    11           46    -10
3    Donny's Boy          3    57.0    3    2.30     9.0   -     -            -     +0
4    Gardener's Pride     3    57.0    4    2.40     9.0   72    -            69    -3
5    Oliver Twist         3    55.5    5    3.15     9.0   -     -3           -     +0
6    Storm Boulevard      3    60.0    6    3.65     9.0   68    5            58    -10
7    Potent Captain       4    60.0    7    5.15     7.0   66    8            56    -10
8    Pomo's Big Spender   3    57.5    8    6.65     9.0   -     -1           -     +0
9    Act Of Power         3    60.0    9    7.90     9.0   55    4            45    -10
99   King's Sailor        3    57.0    99   0.00     9.0   -     -2           -2    +0
99   Top Dollar           5    56.0    99   0.00     0.0   -     14           14    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Union Rose 75 69 - +69 9.0 -
2 Anchor Man 56 63 46 +17 7.0 -
3 Donny's Boy Line - 68 - +68 9.0
4 Gardener's Pride 72 63 69 -6 9.0 -
5 Oliver Twist - 68 - +68 9.0 -
6 Storm Boulevard 68 64 58 +6 9.0 -
7 Potent Captain 66 54 56 -2 7.0 -
8 Pomo's Big Spender - 67 - +67 9.0 -
9 Act Of Power 55 50 45 +5 9.0 -
99 King's Sailor - 67 -2 +69 9.0 -
99 Top Dollar - 42 14 +28 0.0 -
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