Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SUNDAY 11 JUNE FM 88 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Red Maple
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    Southern Song        4    57.5    1    0.00     1.0   83    86           83    +0
2    Red Maple            3    60.0    2    3.25     2.0   92    92           92    +0
3    Princess Kesh        3    52.5    3    4.00     2.0   73    76           76    +3
4    Opera Glass          4    59.0    4    5.00     1.0   86    89           89    +3
5    Quiet Rebellion      3    54.0    5    6.25     2.0   76    77           77    +1
6    Say Yes              2    54.5    6    8.25     0.0   80    82           82    +2
7    Flying First Class   4    59.5    7    8.75     1.0   87    90           90    +3
8    Allthewayfromusa     2    52.0    8    10.00    0.0   67    77           77    +10
9    Trump My Queen       3    51.0    9    10.50    2.0   75    71           71    -4
10   Pashasha             3    52.0    10   11.75    2.0   69    73           73    +4
99   Kind Judy            4    56.5    99   0.00     1.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Southern Song 83 90 83 +7 1.0 -
2 Red Maple Line 92 107 92 +15 2.0
3 Princess Kesh 73 77 76 +1 2.0 -
4 Opera Glass 86 81 89 -8 1.0 -
5 Quiet Rebellion 76 74 77 -3 2.0 -
6 Say Yes 80 90 82 +8 0.0 -
7 Flying First Class 87 82 90 -8 1.0 -
8 Allthewayfromusa 67 57 77 -20 0.0 -
9 Trump My Queen 75 64 71 -7 2.0 -
10 Pashasha 69 57 73 -16 2.0 -
99 Kind Judy - 73 84 -11 1.0 -
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