Official NHA Assessment

Race 4: RACING240 FOR RACING. FOR YOU FM 68 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Crown Plaza
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
4 / 18
Within 2 points
Significant Diffs
9 / 18
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    Princess Deb's       3    57.0    1    0.00     1.5   63    63           63    +0
2    Crown Plaza          3    61.0    2    1.00     1.5   71    71           71    +0
3    Paris Opera          4    61.5    3    1.25     2.0   71    71           71    +0
4    Louvain              6    56.0    4    2.50     0.0   60    64           64    +4
5    Big Sky Country      4    59.0    5    5.50     2.0   66    66           66    +0
6    Romanoff             3    53.5    6    5.60     1.5   56    56           56    +0
7    Hilarity (GB)        4    60.0    7    5.65     2.0   68    68           68    +0
8    English Princess     4    53.0    8    5.90     2.0   62    54           54    -8
9    Conker The World     4    50.5    9    6.65     2.0   52    49           49    -3
10   Trippin The Stars    4    52.0    10   8.90     2.0   50    52           52    +2
11   Quenanza             4    59.5    11   9.65     2.0   67    67           67    +0
12   Isn't It Bliss       4    56.0    12   9.90     2.0   59    60           60    +1
99   My Ami Beach         6    57.5    99   0.00     0.0   -     67           67    +0
99   Alloway Grove        4    54.5    99   0.00     2.0   -     57           57    +0
99   Angel Deb's          3    60.5    99   0.00     1.5   -     70           70    +0
99   Miss Venezuela       4    58.5    99   0.00     2.0   -     65           65    +0
99   Keepingthepeace      4    60.5    99   0.00     2.0   -     69           69    +0
99   Different Drum       3    55.0    99   0.00     1.5   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Princess Deb's 63 80 63 +17 1.5 -
2 Crown Plaza Line 71 58 71 -13 1.5
3 Paris Opera 71 66 71 -5 2.0 -
4 Louvain 60 66 64 +2 0.0 -
5 Big Sky Country 66 51 66 -15 2.0 -
6 Romanoff 56 54 56 -2 1.5 -
7 Hilarity (GB) 68 63 68 -5 2.0 -
8 English Princess 62 59 54 +5 2.0 -
9 Conker The World 52 57 49 +8 2.0 -
10 Trippin The Stars 50 50 52 -2 2.0 -
11 Quenanza 67 49 67 -18 2.0 -
12 Isn't It Bliss 59 51 60 -9 2.0 -
99 My Ami Beach - 70 67 +3 0.0 -
99 Alloway Grove - 44 57 -13 2.0 -
99 Angel Deb's - 78 70 +8 1.5 -
99 Miss Venezuela - 63 65 -2 2.0 -
99 Keepingthepeace - 66 69 -3 2.0 -
99 Different Drum - 47 59 -12 1.5 -
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