Race Day Dossier

Historical Speeds & Outcomes — Horse-by-Horse

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Bayesian Win Probabilities from Past Speeds

Summary — Today’s Card

Summary — Today’s Card (Distance-Aware & Baseline)
Post Speed% Win% (hist) SpdFinish_Idx Last Speed Last Finish Win% (Bayes, naive) Win% (Bayes, @ dist) Exp Speed @ dist
1
HELLO BEAUTY 5 85.7 0.0 85.7 75 5 11.3 6.2 78.5
OFF SCRIPT 3 60.0 0.0 60.0 81 2 7.3 7.4 79.3
SARATOGA SNOW 8 16.7 0.0 16.7 70 2 2.2 2.0 70.1
WILLFUL MAMA 9 11.1 0.0 11.1 61 3 2.3 0.7 60.6
OUR PREFERRED PAL 12 11.1 0.0 11.1 50 2 2.6 2.0 67.5
SASSETTI 1 0.0 0.0 0.0 78 3 7.2 4.0 72.6
NIGHT JASMINE 2 0.0 0.0 0.0 72 7 3.8 1.9 69.4
KATIE KING 4 0.0 0.0 0.0 64 4 7.9 17.9 78.7
JUST ONE MORE 2 0.0 0.0 0.0 69 12 5.0 2.9 72.6
WILL OF A WOMANNE 6 0.0 0.0 0.0 77 4 6.0 4.2 75.4
AMAZING GRACER 7 0.0 0.0 0.0 71 5 10.5 6.8 73.2
STARSHIP PEGASUS 10 0.0 0.0 0.0 75 5 12.5 8.5 75.5
A. P. SLINGSHOT 11 0.0 0.0 0.0 NA NA 17.6 19.7 78.5
BODEGAS 1 0.0 0.0 0.0 60 7 3.8 15.5 77.3
2
SPEED OF SOUND 7 0.0 50.0 50.0 71 2 7.7 10.0 72.3
LIKELY PERSPECTIVE (IRE) 12 33.3 16.7 50.0 85 7 13.4 14.0 77.3
AMAZING ATHENA (IRE) 11 33.3 11.1 44.4 73 8 9.0 10.3 78.2
LESLIE'S STAR 2 20.0 20.0 40.0 84 4 10.4 6.4 57.5
ELEGANT 13 36.4 0.0 36.4 77 3 7.7 4.5 72.1
WEST LOOP 5 14.3 14.3 28.6 73 2 7.8 9.6 76.2
I'M KIDDING 15 14.3 14.3 28.6 75 2 5.4 6.3 68.2
HUE 1 0.0 25.0 25.0 76 3 7.2 7.0 71.7
SHESINAMOOD 6 0.0 20.0 20.0 72 6 5.2 6.4 69.4
LOLLIPOPS 14 0.0 20.0 20.0 71 2 2.9 2.3 61.5
NO FACTOR 4 0.0 14.3 14.3 47 10 0.7 0.2 47.4
ANOTHER CLEESHAY 9 0.0 14.3 14.3 69 3 5.8 8.5 64.2
PARADE RING (IRE) 8 0.0 12.5 12.5 75 1 9.1 9.3 72.4
MISS BOURBON 10 0.0 8.3 8.3 68 7 6.8 5.1 70.8
PARTY AT THE POST 3 0.0 0.0 0.0 45 8 1.0 0.2 45.5
3
CRESCENDO'S REIN 7 0.0 100.0 100.0 78 1 12.2 13.6 75.2
UNCLE GEORGE 1 45.5 45.5 90.9 95 1 24.8 22.1 86.5
MAN IN FINANCE 6 0.0 50.0 50.0 83 4 19.7 20.6 82.4
LEO'S REWARD 3 36.4 9.1 45.5 92 2 15.3 18.1 84.4
CHIEF LIAM 2 0.0 33.3 33.3 61 8 3.7 5.2 67.1
ON THE HILL 5 20.0 10.0 30.0 87 3 15.3 14.6 81.6
ROOFER 4 11.1 11.1 22.2 82 4 9.1 5.7 73.8
4
SACAYA (FR) 2 58.3 16.7 75.0 39 7 16.3 2.6 76.3
NATIONAL ARCHIVE 4 0.0 50.0 50.0 79 1 3.9 6.0 79.5
SPEED SHOPPER 10 20.0 20.0 40.0 88 1 7.3 8.0 87.4
LOW KEY 12 0.0 40.0 40.0 89 1 5.5 2.9 56.7
ALIMARA (FR) 1 14.3 14.3 28.6 80 7 11.5 5.9 86.1
FLEETINGLY 5 14.3 14.3 28.6 86 2 12.6 22.2 97.4
WALK WITH ME 13 0.0 27.3 27.3 80 1 2.9 6.3 83.5
ATARAH 3 0.0 25.0 25.0 68 7 5.3 11.4 79.8
LINA (FR) 9 12.5 12.5 25.0 75 8 12.3 4.9 84.9
BETULA (GB) 6 11.1 11.1 22.2 70 7 6.7 12.0 84.9
PURLOIN 11 0.0 22.2 22.2 87 1 8.3 4.8 83.0
BOBBY JEAN 8 0.0 18.2 18.2 82 5 3.4 1.9 81.1
SNOWY EVENING 7 0.0 0.0 0.0 82 5 4.2 11.2 88.8
5
FIVE DOZEN ROSES 1 66.7 0.0 66.7 65 2 4.0 1.9 54.3
GATTATIZ 4 50.0 0.0 50.0 54 7 2.6 1.2 53.9
MISS UPROAR 10 50.0 0.0 50.0 55 3 1.9 0.6 57.8
LADY DELILAH 13 22.2 0.0 22.2 62 5 2.3 0.8 50.3
PUREST PERFORMANCE 5 20.0 0.0 20.0 49 3 1.6 8.3 64.8
CLOUDY CHANCE 2 0.0 0.0 0.0 55 8 4.3 5.8 65.8
BLUESETTE 3 0.0 0.0 0.0 NA NA 21.1 18.6 70.8
SKYLARKY 6 0.0 0.0 0.0 NA NA 20.1 18.3 70.8
WATDOYOUSAY JOSE 7 0.0 0.0 0.0 NA NA 20.5 18.4 70.8
FROGHOLLOWSUMMER 8 0.0 0.0 0.0 43 5 2.7 0.9 45.8
FORGET TOMORROW 9 0.0 0.0 0.0 55 6 3.8 18.2 71.6
DEFLECTION POINT 11 0.0 0.0 0.0 52 8 6.7 3.3 53.5
FIFI LA FUME 12 0.0 0.0 0.0 65 2 2.2 1.1 56.8
RARE SOCIETY 1 0.0 0.0 0.0 47 10 6.2 2.5 49.3
6
FORT NELSON 1 50.0 50.0 100.0 89 1 13.1 14.4 78.2
V CRUIZER 2 0.0 100.0 100.0 80 1 12.8 12.2 77.7
VOILA MAGIC 5 50.0 16.7 66.7 79 4 20.9 20.5 85.2
KALAHARI DREAMS 3 44.4 11.1 55.6 81 5 17.2 11.8 81.7
GARDINER 6 12.5 37.5 50.0 98 1 18.3 18.9 84.7
SINGLEMINDED 7 0.0 33.3 33.3 87 2 11.1 14.0 80.1
FILOSO 4 0.0 20.0 20.0 62 7 6.6 8.2 74.0
7
ASHES AND DIAMONDS 14 50.0 0.0 50.0 71 4 2.3 1.1 72.6
PAY THE BILLS (FR) 11 28.6 0.0 28.6 82 4 5.1 1.2 69.8
HERE'SYOURTROUBLE 16 28.6 0.0 28.6 47 4 1.8 0.3 62.7
BOSSY DISH 12 25.0 0.0 25.0 83 3 3.7 2.9 71.0
CLASSIC CARA 1 20.0 0.0 20.0 80 5 3.0 1.6 71.6
SILVER PEARLS 13 20.0 0.0 20.0 54 5 1.0 7.3 78.3
AMERICAN POPSTAR 2 0.0 0.0 0.0 NA NA 12.9 14.0 78.5
GALATI PRINCESS 3 0.0 0.0 0.0 NA NA 12.4 12.2 78.5
NEW ISSUE 4 0.0 0.0 0.0 66 2 3.3 10.1 77.8
BREATHLESS WONDER (IRE) 5 0.0 0.0 0.0 NA NA 12.8 13.3 78.5
GALATINA 6 0.0 0.0 0.0 69 2 1.8 1.1 61.9
MINT TEA 7 0.0 0.0 0.0 NA 11 13.9 12.9 78.5
ARTELLA 8 0.0 0.0 0.0 NA NA 13.1 13.4 78.5
UNLIMITED SPENDING (JPN) 9 0.0 0.0 0.0 78 8 3.2 1.7 70.6
BEDFORD THE BRAVE 10 0.0 0.0 0.0 70 6 5.7 5.7 70.2
BABYSITTER 15 0.0 0.0 0.0 44 7 3.8 1.3 55.2
8
RHETORICAL 6 25.0 75.0 100.0 96 1 11.8 16.0 96.0
BANK FRENZY 8 20.0 60.0 80.0 97 5 15.3 21.3 100.4
DR. KRAFT 10 14.3 28.6 42.9 100 1 7.3 7.0 92.4
DRAKE'S PASSAGE 9 30.0 10.0 40.0 96 3 8.7 4.5 89.5
BETTRLUCKYTHANGOOD 3 12.5 25.0 37.5 92 3 12.1 8.4 92.2
GEM MINT TEN 1 22.2 11.1 33.3 90 7 5.1 4.0 89.0
CONMAN 5 0.0 30.0 30.0 97 1 5.1 3.7 90.7
CUT THE CORD 12 0.0 30.0 30.0 84 1 3.1 1.5 83.3
ITSALLCOMINTOGETHA 4 14.3 14.3 28.6 91 4 11.4 16.3 97.7
SHERIFF BIANCO 7 11.1 11.1 22.2 70 5 4.7 3.1 81.0
CLEAR CONSCIENCE 2 0.0 20.0 20.0 82 6 6.6 4.5 90.5
LOCKE AND KEY 11 0.0 20.0 20.0 90 5 7.8 8.7 93.5
LEFTEMBEHIND 13 0.0 10.0 10.0 84 2 0.9 0.7 81.1
9
SENZA PAROLE 8 100.0 100.0 200.0 98 1 21.9 27.2 89.7
WILD MAMA 2 0.0 50.0 50.0 4 9 8.9 17.1 76.0
DESPO'S DREAM 5 10.0 40.0 50.0 91 1 8.0 6.7 81.2
GRAMMY GIRL 10 30.0 20.0 50.0 86 5 11.3 6.1 78.8
SARIR 7 42.9 0.0 42.9 93 3 9.6 8.9 83.0
ROSWELL 9 30.0 10.0 40.0 82 4 5.8 4.7 79.8
PAULA'S A STAR 1 16.7 16.7 33.3 96 2 14.9 12.6 83.9
CLAIRE'S RUN 3 0.0 33.3 33.3 76 6 5.6 4.2 73.5
JUSTTHEFACTSJACK 4 0.0 20.0 20.0 76 5 7.7 7.0 81.2
LETSTALKABOUTME 6 0.0 16.7 16.7 77 7 6.3 5.4 74.7
10
RITHM NIC 10 45.5 9.1 54.5 71 7 26.3 27.5 87.6
TAKESCHARGESMILING 3 18.2 27.3 45.5 87 2 13.5 14.4 83.4
MACAW 7 0.0 37.5 37.5 82 1 6.4 10.0 77.9
MEET ME AT MUNDIS 8 18.2 9.1 27.3 73 7 10.1 9.5 78.6
GATSBY 1 22.2 0.0 22.2 80 5 13.8 13.4 82.2
TETSU 6 11.1 11.1 22.2 84 3 8.4 10.0 80.0
FOR SOME REASON 9 0.0 16.7 16.7 84 4 7.9 3.7 73.9
MUAZARAH 4 0.0 14.3 14.3 30 9 4.1 1.5 53.4
BEACHWALKER 5 0.0 8.3 8.3 72 2 4.0 4.5 73.7
JOKING WAY 2 0.0 0.0 0.0 72 6 5.4 5.4 77.8

Leaderboard — Top Picks by Race

Top 3 by SpdFinish_Idx
Post Speed% Win% (hist) SpdFinish_Idx Last Speed Last Finish Win% (Bayes, naive) Win% (Bayes, @ dist) Exp Speed @ dist
1
HELLO BEAUTY 5 85.7 0.0 85.7 75 5 11.3 6.2 78.5
OFF SCRIPT 3 60.0 0.0 60.0 81 2 7.3 7.4 79.3
SARATOGA SNOW 8 16.7 0.0 16.7 70 2 2.2 2.0 70.1
2
SPEED OF SOUND 7 0.0 50.0 50.0 71 2 7.7 10.0 72.3
LIKELY PERSPECTIVE (IRE) 12 33.3 16.7 50.0 85 7 13.4 14.0 77.3
AMAZING ATHENA (IRE) 11 33.3 11.1 44.4 73 8 9.0 10.3 78.2
3
CRESCENDO'S REIN 7 0.0 100.0 100.0 78 1 12.2 13.6 75.2
UNCLE GEORGE 1 45.5 45.5 90.9 95 1 24.8 22.1 86.5
MAN IN FINANCE 6 0.0 50.0 50.0 83 4 19.7 20.6 82.4
4
SACAYA (FR) 2 58.3 16.7 75.0 39 7 16.3 2.6 76.3
NATIONAL ARCHIVE 4 0.0 50.0 50.0 79 1 3.9 6.0 79.5
SPEED SHOPPER 10 20.0 20.0 40.0 88 1 7.3 8.0 87.4
5
FIVE DOZEN ROSES 1 66.7 0.0 66.7 65 2 4.0 1.9 54.3
GATTATIZ 4 50.0 0.0 50.0 54 7 2.6 1.2 53.9
MISS UPROAR 10 50.0 0.0 50.0 55 3 1.9 0.6 57.8
6
FORT NELSON 1 50.0 50.0 100.0 89 1 13.1 14.4 78.2
V CRUIZER 2 0.0 100.0 100.0 80 1 12.8 12.2 77.7
VOILA MAGIC 5 50.0 16.7 66.7 79 4 20.9 20.5 85.2
7
ASHES AND DIAMONDS 14 50.0 0.0 50.0 71 4 2.3 1.1 72.6
PAY THE BILLS (FR) 11 28.6 0.0 28.6 82 4 5.1 1.2 69.8
HERE'SYOURTROUBLE 16 28.6 0.0 28.6 47 4 1.8 0.3 62.7
8
RHETORICAL 6 25.0 75.0 100.0 96 1 11.8 16.0 96.0
BANK FRENZY 8 20.0 60.0 80.0 97 5 15.3 21.3 100.4
DR. KRAFT 10 14.3 28.6 42.9 100 1 7.3 7.0 92.4
9
SENZA PAROLE 8 100.0 100.0 200.0 98 1 21.9 27.2 89.7
WILD MAMA 2 0.0 50.0 50.0 4 9 8.9 17.1 76.0
DESPO'S DREAM 5 10.0 40.0 50.0 91 1 8.0 6.7 81.2
10
RITHM NIC 10 45.5 9.1 54.5 71 7 26.3 27.5 87.6
TAKESCHARGESMILING 3 18.2 27.3 45.5 87 2 13.5 14.4 83.4
MACAW 7 0.0 37.5 37.5 82 1 6.4 10.0 77.9
Top 3 by Win% (Bayes, @ dist)
Post Speed% Win% (hist) SpdFinish_Idx Last Speed Last Finish Win% (Bayes, naive) Win% (Bayes, @ dist) Exp Speed @ dist
1
A. P. SLINGSHOT 11 0.0 0.0 0.0 NA NA 17.6 19.7 78.5
KATIE KING 4 0.0 0.0 0.0 64 4 7.9 17.9 78.7
BODEGAS 1 0.0 0.0 0.0 60 7 3.8 15.5 77.3
2
LIKELY PERSPECTIVE (IRE) 12 33.3 16.7 50.0 85 7 13.4 14.0 77.3
AMAZING ATHENA (IRE) 11 33.3 11.1 44.4 73 8 9.0 10.3 78.2
SPEED OF SOUND 7 0.0 50.0 50.0 71 2 7.7 10.0 72.3
3
UNCLE GEORGE 1 45.5 45.5 90.9 95 1 24.8 22.1 86.5
MAN IN FINANCE 6 0.0 50.0 50.0 83 4 19.7 20.6 82.4
LEO'S REWARD 3 36.4 9.1 45.5 92 2 15.3 18.1 84.4
4
FLEETINGLY 5 14.3 14.3 28.6 86 2 12.6 22.2 97.4
BETULA (GB) 6 11.1 11.1 22.2 70 7 6.7 12.0 84.9
ATARAH 3 0.0 25.0 25.0 68 7 5.3 11.4 79.8
5
BLUESETTE 3 0.0 0.0 0.0 NA NA 21.1 18.6 70.8
WATDOYOUSAY JOSE 7 0.0 0.0 0.0 NA NA 20.5 18.4 70.8
SKYLARKY 6 0.0 0.0 0.0 NA NA 20.1 18.3 70.8
6
VOILA MAGIC 5 50.0 16.7 66.7 79 4 20.9 20.5 85.2
GARDINER 6 12.5 37.5 50.0 98 1 18.3 18.9 84.7
FORT NELSON 1 50.0 50.0 100.0 89 1 13.1 14.4 78.2
7
AMERICAN POPSTAR 2 0.0 0.0 0.0 NA NA 12.9 14.0 78.5
ARTELLA 8 0.0 0.0 0.0 NA NA 13.1 13.4 78.5
BREATHLESS WONDER (IRE) 5 0.0 0.0 0.0 NA NA 12.8 13.3 78.5
8
BANK FRENZY 8 20.0 60.0 80.0 97 5 15.3 21.3 100.4
ITSALLCOMINTOGETHA 4 14.3 14.3 28.6 91 4 11.4 16.3 97.7
RHETORICAL 6 25.0 75.0 100.0 96 1 11.8 16.0 96.0
9
SENZA PAROLE 8 100.0 100.0 200.0 98 1 21.9 27.2 89.7
WILD MAMA 2 0.0 50.0 50.0 4 9 8.9 17.1 76.0
PAULA'S A STAR 1 16.7 16.7 33.3 96 2 14.9 12.6 83.9
10
RITHM NIC 10 45.5 9.1 54.5 71 7 26.3 27.5 87.6
TAKESCHARGESMILING 3 18.2 27.3 45.5 87 2 13.5 14.4 83.4
GATSBY 1 22.2 0.0 22.2 80 5 13.8 13.4 82.2
Top 3 by Win% (Bayes, naive)
Post Speed% Win% (hist) SpdFinish_Idx Last Speed Last Finish Win% (Bayes, naive) Win% (Bayes, @ dist) Exp Speed @ dist
1
A. P. SLINGSHOT 11 0.0 0.0 0.0 NA NA 17.6 19.7 78.5
STARSHIP PEGASUS 10 0.0 0.0 0.0 75 5 12.5 8.5 75.5
HELLO BEAUTY 5 85.7 0.0 85.7 75 5 11.3 6.2 78.5
2
LIKELY PERSPECTIVE (IRE) 12 33.3 16.7 50.0 85 7 13.4 14.0 77.3
LESLIE'S STAR 2 20.0 20.0 40.0 84 4 10.4 6.4 57.5
PARADE RING (IRE) 8 0.0 12.5 12.5 75 1 9.1 9.3 72.4
3
UNCLE GEORGE 1 45.5 45.5 90.9 95 1 24.8 22.1 86.5
MAN IN FINANCE 6 0.0 50.0 50.0 83 4 19.7 20.6 82.4
LEO'S REWARD 3 36.4 9.1 45.5 92 2 15.3 18.1 84.4
4
SACAYA (FR) 2 58.3 16.7 75.0 39 7 16.3 2.6 76.3
FLEETINGLY 5 14.3 14.3 28.6 86 2 12.6 22.2 97.4
LINA (FR) 9 12.5 12.5 25.0 75 8 12.3 4.9 84.9
5
BLUESETTE 3 0.0 0.0 0.0 NA NA 21.1 18.6 70.8
WATDOYOUSAY JOSE 7 0.0 0.0 0.0 NA NA 20.5 18.4 70.8
SKYLARKY 6 0.0 0.0 0.0 NA NA 20.1 18.3 70.8
6
VOILA MAGIC 5 50.0 16.7 66.7 79 4 20.9 20.5 85.2
GARDINER 6 12.5 37.5 50.0 98 1 18.3 18.9 84.7
KALAHARI DREAMS 3 44.4 11.1 55.6 81 5 17.2 11.8 81.7
7
MINT TEA 7 0.0 0.0 0.0 NA 11 13.9 12.9 78.5
ARTELLA 8 0.0 0.0 0.0 NA NA 13.1 13.4 78.5
AMERICAN POPSTAR 2 0.0 0.0 0.0 NA NA 12.9 14.0 78.5
8
BANK FRENZY 8 20.0 60.0 80.0 97 5 15.3 21.3 100.4
BETTRLUCKYTHANGOOD 3 12.5 25.0 37.5 92 3 12.1 8.4 92.2
RHETORICAL 6 25.0 75.0 100.0 96 1 11.8 16.0 96.0
9
SENZA PAROLE 8 100.0 100.0 200.0 98 1 21.9 27.2 89.7
PAULA'S A STAR 1 16.7 16.7 33.3 96 2 14.9 12.6 83.9
GRAMMY GIRL 10 30.0 20.0 50.0 86 5 11.3 6.1 78.8
10
RITHM NIC 10 45.5 9.1 54.5 71 7 26.3 27.5 87.6
GATSBY 1 22.2 0.0 22.2 80 5 13.8 13.4 82.2
TAKESCHARGESMILING 3 18.2 27.3 45.5 87 2 13.5 14.4 83.4

Per-Race Deep Dive (Interactive, Right-Aligned, Linked; NA-safe)

Race 1 — Field Overview

Race 2 — Field Overview

Race 3 — Field Overview

Race 4 — Field Overview

Race 5 — Field Overview

Race 6 — Field Overview

Race 7 — Field Overview

Race 8 — Field Overview

Race 9 — Field Overview

Race 10 — Field Overview

Appendix — Raw Parsed Rows (sample)

Parsed Rows (first 50)
race_index horse_name post speed_last speed_best speed_trend finish_last dist_last_f
1 BODEGAS 1 60 60 11.00000000 7 5.5
1 SASSETTI 1 78 78 8.00000000 3 8.5
1 JUST ONE MORE 2 69 80 0.60000000 12 8.5
1 NIGHT JASMINE 2 72 73 7.40000000 7 8.5
1 OFF SCRIPT 3 81 81 1.70000000 2 8.5
1 KATIE KING 4 64 64 0.00000000 4 6.0
1 HELLO BEAUTY 5 75 90 2.50000000 5 8.5
1 WILL OF A WOMANNE 6 77 77 2.50000000 4 8.5
1 AMAZING GRACER 7 71 71 0.00000000 5 8.5
1 SARATOGA SNOW 8 70 72 1.14285714 2 8.5
1 WILLFUL MAMA 9 61 74 -0.63333333 3 6.0
1 STARSHIP PEGASUS 10 75 75 0.00000000 5 8.5
1 A. P. SLINGSHOT 11 NA NA 0.00000000 NA NA
1 OUR PREFERRED PAL 12 50 75 2.53333333 2 6.5
2 HUE 1 76 79 6.00000000 3 5.5
2 LESLIE'S STAR 2 84 88 9.70000000 4 8.0
2 PARTY AT THE POST 3 45 45 5.40000000 8 5.5
2 NO FACTOR 4 47 62 -0.07142857 10 6.0
2 WEST LOOP 5 73 87 1.07142857 2 5.5
2 SHESINAMOOD 6 72 77 0.20000000 6 5.5
2 SPEED OF SOUND 7 71 73 -2.00000000 2 5.5
2 PARADE RING (IRE) 8 75 83 -2.61904762 1 5.5
2 ANOTHER CLEESHAY 9 69 79 -0.32142857 3 6.0
2 MISS BOURBON 10 68 83 4.54195804 7 5.5
2 AMAZING ATHENA (IRE) 11 73 91 -0.31666667 8 5.5
2 LIKELY PERSPECTIVE (IRE) 12 85 91 0.05714286 7 5.5
2 ELEGANT 13 77 92 -0.86363636 3 5.5
2 LOLLIPOPS 14 71 71 3.70000000 2 6.0
2 I'M KIDDING 15 75 84 -0.25000000 2 6.0
3 UNCLE GEORGE 1 95 95 0.82727273 1 6.0
3 CHIEF LIAM 2 61 76 2.00000000 8 8.5
3 LEO'S REWARD 3 92 94 2.40909091 2 6.0
3 ROOFER 4 82 94 2.53333333 4 5.5
3 ON THE HILL 5 87 98 0.20000000 3 6.0
3 MAN IN FINANCE 6 83 92 -9.00000000 4 7.0
3 CRESCENDO'S REIN 7 78 78 0.00000000 1 7.0
4 ALIMARA (FR) 1 80 94 -1.71428571 7 9.5
4 SACAYA (FR) 2 39 109 -2.68531469 7 12.0
4 ATARAH 3 68 86 -1.30000000 7 8.0
4 NATIONAL ARCHIVE 4 79 79 2.10000000 1 9.5
4 FLEETINGLY 5 86 93 0.25000000 2 9.0
4 BETULA (GB) 6 70 96 -1.81666667 7 8.0
4 SNOWY EVENING 7 82 87 -0.27380952 5 8.0
4 BOBBY JEAN 8 82 87 0.79090909 5 9.5
4 LINA (FR) 9 75 96 -1.95238095 8 9.5
4 SPEED SHOPPER 10 88 88 3.00000000 1 11.0
4 PURLOIN 11 87 87 2.41666667 1 8.5
4 LOW KEY 12 89 89 3.10000000 1 8.0
4 WALK WITH ME 13 80 85 2.01818182 1 8.0
5 FIVE DOZEN ROSES 1 65 65 10.50000000 2 6.0

Notes on the Bayesian approach

  • This uses a conjugate Normal–Inverse-Gamma model for each horse’s latent speed and draws posterior predictive samples; win probability is the chance a simulated next speed is the maximum in its field.
  • Heavy tails come from the Student-t predictive, improving robustness with sparse/noisy histories.
  • Recency weighting (half-life in race counts) down-weights old races; set BAYES_HALF_LIFE_RACES <- NA to turn off.
  • If you later want true MCMC/hierarchical effects, we can wire a brms/rstanarm alternative and keep the same max-of-field simulation to produce Win% (Bayes, naive).