Rank Name Elo + - games score oppo. draws 1 Stockfish 3687 16 16 715 59% 3625 52% 2 LCZero 3648 18 18 515 54% 3622 52% 3 Stockfish_15_300M 3611 12 12 1118 56% 3569 70% 4 Berserk 3591 19 19 482 58% 3533 57% 5 KomodoDragon 3583 23 23 318 52% 3570 52% 6 Ceres 3574 28 28 228 61% 3502 50% 7 Stockfish_15_100M 3569 7 7 3224 54% 3541 68% 8 Obsidian 3560 22 22 343 58% 3504 61% 9 Ethereal 3549 29 29 198 48% 3560 58% 10 RubiChess 3545 27 27 231 50% 3549 59% 11 Caissa 3543 25 25 264 53% 3521 61% 12 Seer 3525 26 26 250 48% 3542 56% 13 Stockfish_13_CCRL 3522 9 9 2048 51% 3517 69% 14 Stockfish_15_30M_4th 3517 6 6 5120 51% 3508 69% 15 Viridithas 3501 25 25 259 53% 3485 63% 16 rofChade 3498 33 33 160 51% 3488 57% 17 Stockfish_15_30M 3496 7 7 3296 49% 3503 67% 18 Renamedfish_15_3M 3495 136 136 8 25% 3648 50% 19 PlentyChess 3492 30 30 188 56% 3448 60% 20 Stoofvlees 3492 32 32 172 46% 3518 53% 21 Igel 3485 31 31 174 50% 3481 61% 22 Uralochka 3476 28 28 221 51% 3469 57% 23 Clover 3476 36 36 128 50% 3470 60% 24 Devre 3475 30 30 200 57% 3415 61% 25 Revenge 3469 32 32 170 48% 3480 56% 26 Ginkgo 3461 31 31 173 53% 3444 62% 27 Stormphrax 3451 28 28 213 53% 3429 61% 28 Serendipity 3450 147 147 6 42% 3498 83% 29 Lizard 3447 42 42 98 55% 3411 52% 30 Velvet 3445 25 25 268 51% 3436 63% 31 Arasan 3432 27 27 230 48% 3448 62% 32 akimbo 3431 29 29 201 51% 3428 60% 33 Stockfish_15_10M 3429 7 7 3337 46% 3456 63% 34 ScorpioNN 3425 46 46 76 47% 3442 71% 35 BlackMarlin 3421 29 29 204 49% 3430 59% 36 Altair 3415 33 33 155 51% 3408 57% 37 DeepSjeng 3410 31 31 168 45% 3442 62% 38 Halogen 3405 47 47 80 54% 3377 45% 39 Spaghet 3397 107 107 20 68% 3206 55% 40 Minic 3395 33 33 158 41% 3458 53% 41 Willow 3394 43 43 88 49% 3399 59% 42 Equisetum 3394 33 33 156 52% 3383 56% 43 Renegade 3382 45 45 86 52% 3368 52% 44 Booot 3377 34 34 145 48% 3390 55% 45 Stockfish_15_3M 3363 9 9 2320 51% 3355 59% 46 Weiss 3362 36 36 134 47% 3382 49% 47 Tucano 3343 34 34 148 45% 3376 55% 48 Marvin 3322 34 34 146 39% 3397 56% 49 Texel 3321 35 35 142 43% 3369 56% 50 Patricia 3320 49 49 74 47% 3343 45% 51 Winter 3307 45 45 90 44% 3346 48% 52 Wasp 3304 37 37 132 44% 3348 52% 53 Integral 3288 64 64 42 46% 3314 50% 54 Stash 3288 51 51 68 41% 3348 53% 55 Expositor 3282 52 52 64 44% 3323 63% 56 Stockfish_15_1M 3277 9 9 2250 52% 3261 55% 57 Avalanche 3257 70 70 34 44% 3291 59% 58 Reckless 3249 91 91 20 40% 3312 60% 59 Mr_Bob 3248 70 70 34 47% 3269 53% 60 Counter 3231 77 77 30 52% 3214 43% 61 Cheng 3209 59 59 54 45% 3235 46% 62 ChessFighter 3180 57 57 56 43% 3227 46% 63 StockDory 3172 80 80 30 43% 3227 40% 64 Gull 3167 53 53 66 66% 3056 47% 65 Heimdall 3165 79 79 32 44% 3165 44% 66 Stockfish_15_300k 3159 9 9 2156 52% 3142 49% 67 Princhess 3126 86 86 26 37% 3228 27% 68 ice4 3095 24 24 394 58% 2929 40% 69 4ku 3052 25 25 396 51% 2948 36% 70 Bagatur 3050 72 72 48 39% 3131 31% 71 Critter 3022 76 76 32 45% 3049 41% 72 Stockfish_15_100k 3004 9 9 2180 53% 2976 39% 73 Cheese 3000 81 81 30 27% 3165 33% 74 Clarity 2957 114 114 22 16% 3247 23% 75 Glaurung_2.2_CCRL 2886 59 59 72 57% 2778 28% 76 STRO4K 2867 33 33 270 51% 2764 19% 77 Crafty_25.2_CCRL 2817 80 80 36 18% 3051 25% 78 Stockfish_15_30k 2781 10 10 2112 51% 2770 29% 79 Quanticade 2681 110 110 32 27% 2937 16% 80 Glaurung 2573 116 116 28 36% 2659 14% 81 Stockfish_15_10k 2532 12 12 2104 55% 2474 19% 82 M4sseur 2324 88 88 100 41% 2499 5% 83 molly 2292 58 58 124 48% 2357 15% 84 Stockfish_15_3k 2163 14 14 2144 51% 2149 10% 85 pygone 1865 80 80 104 16% 2511 5% 86 sunfish 1781 123 123 10 50% 1781 80% 87 moonfish 1781 46 46 206 20% 2260 14% 88 Stockfish_15_1k 1769 20 20 1108 9% 2148 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 calculated automatically from the same games before rating calculation. bayeselo input: readpgn all/TCEC_Season_24_Calibration.pgn readpgn players/TCEC_Season_26.pgn readpgn players/TCEC_Season_27.pgn elo advantage 101.898 drawelo 246.503 mm scale 0.6315879793453835 offset 3522 Stockfish_13_CCRL ratings