Rank Name Elo + - games score oppo. draws 1 Stockfish 3669 19 19 500 65% 3565 55% 2 LCZero 3632 19 19 471 58% 3567 57% 3 Stockfish_15_300M 3613 12 12 1142 55% 3578 70% 4 KomodoDragon 3587 23 23 306 57% 3537 59% 5 Stockfish_15_100M 3572 7 7 3204 54% 3545 68% 6 Ethereal 3537 24 24 289 51% 3531 61% 7 Stockfish_13_CCRL 3524 9 9 2048 51% 3519 69% 8 Stockfish_15_30M_4th 3519 6 6 5120 51% 3510 69% 9 RubiChess 3513 25 25 274 54% 3481 58% 10 Stockfish_15_30M 3500 7 7 3205 49% 3504 66% 11 Berserk 3496 30 30 181 50% 3498 59% 12 Igel 3495 22 22 334 54% 3462 59% 13 Koivisto 3494 33 33 152 51% 3486 57% 14 Stoofvlees 3492 28 28 232 47% 3512 47% 15 rofChade 3484 31 31 182 54% 3450 55% 16 Seer 3467 32 32 170 53% 3442 52% 17 Revenge 3462 32 32 173 53% 3437 51% 18 Clover 3438 31 31 183 58% 3385 54% 19 Minic 3433 30 30 184 48% 3446 58% 20 Caissa 3428 32 32 170 58% 3374 49% 21 Stockfish_15_10M 3428 7 7 3222 46% 3456 63% 22 SlowChess 3420 29 29 210 39% 3498 54% 23 Viridithas 3417 33 33 164 56% 3373 53% 24 ScorpioNN 3410 31 31 175 47% 3429 51% 25 Arasan 3399 30 30 182 53% 3382 59% 26 DeepSjeng 3378 31 31 176 49% 3381 57% 27 Fritz 3365 28 28 208 46% 3395 54% 28 BlackMarlin 3365 29 29 200 48% 3380 61% 29 Smallbrain 3355 38 38 120 53% 3331 53% 30 Stockfish_15_3M 3353 9 9 2198 51% 3344 59% 31 Uralochka 3353 31 31 170 51% 3343 62% 32 Marvin 3339 29 29 205 44% 3378 56% 33 Velvet 3335 32 32 164 48% 3351 54% 34 Wasp 3322 29 29 199 46% 3347 56% 35 Booot 3315 36 36 132 48% 3322 58% 36 Weiss 3307 43 43 93 52% 3293 52% 37 Equisetum 3302 48 48 77 51% 3294 52% 38 Halogen 3301 33 33 154 45% 3333 58% 39 Tucano 3296 32 32 160 44% 3333 64% 40 Nemorino 3282 48 48 78 40% 3352 49% 41 Stockfish_15_1M 3258 9 9 2172 51% 3248 56% 42 Mantissa 3256 47 47 88 48% 3263 35% 43 BlackCore 3253 51 51 68 47% 3271 50% 44 Winter 3241 47 47 88 48% 3252 41% 45 Stash 3222 45 45 95 45% 3253 34% 46 Zahak 3215 78 78 31 47% 3249 35% 47 Expositor 3202 35 35 154 39% 3275 47% 48 Counter 3199 88 88 24 50% 3195 42% 49 Mr_Bob 3168 46 46 89 44% 3204 39% 50 Stockfish_15_300k 3137 9 9 2142 52% 3123 49% 51 ChessFighter 3134 46 46 93 41% 3195 40% 52 Drofa 3112 81 81 33 41% 3203 27% 53 StockDory 3110 54 54 66 38% 3191 42% 54 StockNemo 3089 77 77 30 43% 3139 40% 55 Amoeba 3058 88 88 24 44% 3103 29% 56 Stockfish_15_100k 2978 10 10 2108 53% 2950 39% 57 Cheese 2941 99 99 24 31% 3117 29% 58 Bagatur 2902 65 65 58 29% 3079 17% 59 ice4 2844 53 53 122 59% 2659 24% 60 4ku 2836 52 52 122 59% 2641 25% 61 OliThink 2790 98 98 32 23% 3033 16% 62 Stockfish_15_30k 2753 10 10 2080 51% 2742 30% 63 STRO4K 2530 79 79 68 63% 2337 4% 64 Stockfish_15_10k 2504 12 12 2066 55% 2443 19% 65 M4sseur 2241 78 78 70 39% 2391 4% 66 Stockfish_15_3k 2128 15 15 2054 50% 2116 9% 67 pygone 1920 93 93 64 15% 2433 5% 68 sunfish 1881 101 101 62 11% 2450 6% 69 Stockfish_15_1k 1729 22 22 1032 7% 2128 8% Note that all CCRL engines use 4 threads and 1GiB hash. Other engines usually use 104 threads and 64GiB hash. Parameters advantage and drawelo are calcualted automatically from the same games before rating calculation. bayeselo input: readpgn players/TCEC_Season_24.pgn readpgn players/TCEC_Season_25.pgn elo advantage 101.898 drawelo 249.5 mm scale 0.6259616024094411 offset 3524 Stockfish_13_CCRL ratings