Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING MONDAY 29 AUGUST FM 68 HANDICAP (F & M) (For Fillies and Mares)

Back to Race
Line Horse
Do Si Do
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
9 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Silver Slippers      3    56.5    1    0.00     9.0   62    59           62    +0
2    Masters Queen        3    58.5    2    0.25     9.0   66    63           63    -3
3    Beneficiary          5    57.5    3    1.50     0.0   63    82           82    +19
4    Do Si Do             3    58.5    4    2.25     9.0   66    66           66    +0
5    Keepingthepeace      4    60.5    5    2.30     7.0   69    73           73    +4
6    Miss Millstream      5    60.0    6    2.40     0.0   68    86           86    +18
7    Opera Swing          4    58.0    7    3.65     7.0   64    67           67    +3
8    Alaskan Fate         5    60.0    8    5.90     0.0   68    84           84    +16
9    Absolutely Fab       4    54.5    9    6.40     7.0   57    59           59    +2
10   One Bite At A Time   3    55.0    10   8.65     9.0   59    56           56    -3
11   Red Rules            4    52.5    11   8.90     7.0   49    55           55    +6
99   Sparkling Flame      3    55.0    99   0.00     9.0   -     56           56    +0
99   Golden Archer        5    52.0    99   0.00     0.0   -     68           68    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silver Slippers 62 63 62 +1 9.0 -
2 Masters Queen 66 56 63 -7 9.0 -
3 Beneficiary 63 62 82 -20 0.0 -
4 Do Si Do Line 66 65 66 -1 9.0
5 Keepingthepeace 69 66 73 -7 7.0 -
6 Miss Millstream 68 63 86 -23 0.0 -
7 Opera Swing 64 82 67 +15 7.0 -
8 Alaskan Fate 68 66 84 -18 0.0 -
9 Absolutely Fab 57 51 59 -8 7.0 -
10 One Bite At A Time 59 52 56 -4 9.0 -
11 Red Rules 49 46 55 -9 7.0 -
99 Sparkling Flame - 59 56 +3 9.0 -
99 Golden Archer - 43 68 -25 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