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Trainer Comparison

Statistics by Year:
Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 1 3 3 0 0 0 0% 0% $1,260 $420 $1,260 0 0
Dimitrios K. Synnefias 17 53 3.12 5 5 10 9.43% 37.74% $388,460 $7,329 $22,851 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 1 1 1 1 0 0 100% 100% $10,200 $10,200 $10,200 0 0
Dimitrios K. Synnefias 25 99 3.96 11 18 14 11.11% 43.43% $455,590 $4,602 $18,224 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Dimitrios K. Synnefias 20 68 3.4 8 8 8 11.76% 35.29% $428,667 $6,304 $21,433 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 20 35 1.75 7 5 5 20% 48.57% $159,827 $4,566 $7,991 0 0
Dimitrios K. Synnefias 18 85 4.72 18 9 12 21.18% 45.88% $441,544 $5,195 $24,530 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 3 15 5 3 3 2 20% 53.33% $36,172 $2,411 $12,057 0 0
Dimitrios K. Synnefias 16 70 4.38 10 15 12 14.29% 52.86% $442,069 $6,315 $27,629 0 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 7 22 3.14 1 1 2 4.55% 18.18% $20,253 $921 $2,893 0 0
Dimitrios K. Synnefias 21 111 5.29 16 21 13 14.41% 45.05% $482,575 $4,348 $22,980 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 7 18 2.57 0 2 2 0% 22.22% $13,835 $769 $1,976 0 0
Dimitrios K. Synnefias 14 51 3.64 11 9 7 21.57% 52.94% $164,643 $3,228 $11,760 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 10 53 5.3 2 5 8 3.77% 28.3% $67,185 $1,268 $6,719 0 0
Dimitrios K. Synnefias 20 102 5.1 18 12 17 17.65% 46.08% $334,701 $3,281 $16,735 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 10 48 4.8 2 4 10 4.17% 33.33% $91,967 $1,916 $9,197 0 0
Dimitrios K. Synnefias 38 102 2.68 21 16 17 20.59% 52.94% $377,952 $3,705 $9,946 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 12 48 4 3 4 7 6.25% 29.17% $97,477 $2,031 $8,123 0 0
Dimitrios K. Synnefias 20 91 4.55 14 17 12 15.38% 47.25% $284,670 $3,128 $14,234 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 12 52 4.33 8 6 9 15.38% 44.23% $174,039 $3,347 $14,503 0 0
Dimitrios K. Synnefias 14 40 2.86 5 7 4 12.5% 40% $124,038 $3,101 $8,860 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 8 33 4.13 3 9 7 9.09% 57.58% $108,594 $3,291 $13,574 0 0
Dimitrios K. Synnefias 43 162 3.77 39 28 14 24.07% 50% $751,068 $4,636 $17,467 0 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 8 36 4.5 4 7 1 11.11% 33.33% $71,485 $1,986 $8,936 0 0
Dimitrios K. Synnefias 47 155 3.3 20 26 24 12.9% 45.16% $453,209 $2,924 $9,643 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 8 40 5 2 8 4 5% 35% $48,602 $1,215 $6,075 0 0
Dimitrios K. Synnefias 48 182 3.79 37 27 25 20.33% 48.9% $663,315 $3,645 $13,819 0 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 13 50 3.85 3 6 7 6% 32% $61,790 $1,236 $4,753 0 0
Dimitrios K. Synnefias 67 239 3.57 32 32 32 13.39% 40.17% $644,636 $2,697 $9,621 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 13 31 2.38 0 2 6 0% 25.81% $19,232 $620 $1,479 0 0
Dimitrios K. Synnefias 46 200 4.35 19 26 32 9.5% 38.5% $434,514 $2,173 $9,446 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 8 63 7.88 4 9 17 6.35% 47.62% $114,264 $1,814 $14,283 0 0
Dimitrios K. Synnefias 26 109 4.19 11 10 15 10.09% 33.03% $205,240 $1,883 $7,894 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 14 47 3.36 2 3 2 4.26% 14.89% $45,550 $969 $3,254 0 0
Dimitrios K. Synnefias 25 79 3.16 6 10 7 7.59% 29.11% $125,352 $1,587 $5,014 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 11 46 4.18 3 4 7 6.52% 30.43% $55,796 $1,213 $5,072 0 0
Dimitrios K. Synnefias 30 164 5.47 13 17 11 7.93% 25% $260,017 $1,585 $8,667 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 2 9 4.5 1 0 0 11.11% 11.11% $5,925 $658 $2,963 0 0
Dimitrios K. Synnefias 54 406 7.52 40 49 37 9.85% 31.03% $452,578 $1,115 $8,381 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 16 39 2.44 3 7 6 7.69% 41.03% $34,662 $889 $2,166 0 0
Dimitrios K. Synnefias 70 450 6.43 41 43 65 9.11% 33.11% $513,184 $1,140 $7,331 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 34 104 3.06 7 9 6 6.73% 21.15% $88,549 $851 $2,604 0 0
Dimitrios K. Synnefias 61 369 6.05 56 52 45 15.18% 41.46% $626,727 $1,698 $10,274 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 35 183 5.23 19 21 19 10.38% 32.24% $224,290 $1,226 $6,408 0 0
Dimitrios K. Synnefias 45 256 5.69 37 27 30 14.45% 36.72% $432,232 $1,688 $9,605 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 32 144 4.5 16 13 18 11.11% 32.64% $148,302 $1,030 $4,634 0 0
Dimitrios K. Synnefias 41 149 3.63 26 21 8 17.45% 36.91% $438,815 $2,945 $10,703 0 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 26 121 4.65 10 13 17 8.26% 33.06% $104,460 $863 $4,018 0 0
Dimitrios K. Synnefias 41 160 3.9 30 23 19 18.75% 45% $560,388 $3,502 $13,668 0 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 29 187 6.45 24 19 27 12.83% 37.43% $232,867 $1,245 $8,030 0 0
Dimitrios K. Synnefias 24 100 4.17 15 13 14 15% 42% $104,304 $1,043 $4,346 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 38 217 5.71 32 32 23 14.75% 40.09% $324,413 $1,495 $8,537 0 0
Dimitrios K. Synnefias 18 109 6.06 23 16 6 21.1% 41.28% $193,651 $1,777 $10,758 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 31 159 5.13 30 24 22 18.87% 47.8% $270,410 $1,701 $8,723 0 0
Dimitrios K. Synnefias 11 42 3.82 8 3 6 19.05% 40.48% $44,540 $1,060 $4,049 0 0