{
 "crawled": "2026-07",
 "what": "median/quartile rating mappings from players matched by username across lichess and chess.com; bins are [x_center, median, q1, q3]",
 "n_matched_bullet": 1871,
 "lichess_bullet_to_chesscom_bullet": [
  {
   "x": 950,
   "n": 26,
   "med": 466,
   "q1": 359,
   "q3": 626
  },
  {
   "x": 1050,
   "n": 39,
   "med": 538,
   "q1": 428,
   "q3": 652
  },
  {
   "x": 1150,
   "n": 51,
   "med": 622,
   "q1": 522,
   "q3": 742
  },
  {
   "x": 1250,
   "n": 63,
   "med": 747,
   "q1": 651,
   "q3": 872
  },
  {
   "x": 1350,
   "n": 82,
   "med": 864,
   "q1": 735,
   "q3": 981
  },
  {
   "x": 1450,
   "n": 97,
   "med": 1019,
   "q1": 894,
   "q3": 1180
  },
  {
   "x": 1550,
   "n": 107,
   "med": 1105,
   "q1": 988,
   "q3": 1193
  },
  {
   "x": 1650,
   "n": 106,
   "med": 1230,
   "q1": 1121,
   "q3": 1347
  },
  {
   "x": 1750,
   "n": 103,
   "med": 1381,
   "q1": 1240,
   "q3": 1502
  },
  {
   "x": 1850,
   "n": 93,
   "med": 1475,
   "q1": 1323,
   "q3": 1606
  },
  {
   "x": 1950,
   "n": 101,
   "med": 1611,
   "q1": 1414,
   "q3": 1715
  },
  {
   "x": 2050,
   "n": 103,
   "med": 1713,
   "q1": 1600,
   "q3": 1828
  },
  {
   "x": 2150,
   "n": 98,
   "med": 1920,
   "q1": 1809,
   "q3": 2031
  },
  {
   "x": 2250,
   "n": 88,
   "med": 2094,
   "q1": 1951,
   "q3": 2226
  },
  {
   "x": 2350,
   "n": 88,
   "med": 2210,
   "q1": 2091,
   "q3": 2340
  },
  {
   "x": 2450,
   "n": 102,
   "med": 2372,
   "q1": 2275,
   "q3": 2450
  },
  {
   "x": 2550,
   "n": 104,
   "med": 2470,
   "q1": 2354,
   "q3": 2535
  },
  {
   "x": 2650,
   "n": 110,
   "med": 2600,
   "q1": 2515,
   "q3": 2657
  },
  {
   "x": 2750,
   "n": 115,
   "med": 2666,
   "q1": 2594,
   "q3": 2751
  },
  {
   "x": 2850,
   "n": 74,
   "med": 2770,
   "q1": 2674,
   "q3": 2823
  },
  {
   "x": 2950,
   "n": 45,
   "med": 2850,
   "q1": 2757,
   "q3": 2947
  },
  {
   "x": 3050,
   "n": 41,
   "med": 2928,
   "q1": 2851,
   "q3": 3006
  }
 ],
 "chesscom_bullet_to_lichess_bullet": [
  {
   "x": 350,
   "n": 32,
   "med": 1042,
   "q1": 929,
   "q3": 1263
  },
  {
   "x": 450,
   "n": 26,
   "med": 1086,
   "q1": 1055,
   "q3": 1165
  },
  {
   "x": 550,
   "n": 40,
   "med": 1221,
   "q1": 1084,
   "q3": 1370
  },
  {
   "x": 650,
   "n": 51,
   "med": 1197,
   "q1": 1112,
   "q3": 1315
  },
  {
   "x": 750,
   "n": 48,
   "med": 1302,
   "q1": 1251,
   "q3": 1385
  },
  {
   "x": 850,
   "n": 62,
   "med": 1398,
   "q1": 1283,
   "q3": 1472
  },
  {
   "x": 950,
   "n": 72,
   "med": 1433,
   "q1": 1356,
   "q3": 1544
  },
  {
   "x": 1050,
   "n": 85,
   "med": 1517,
   "q1": 1434,
   "q3": 1661
  },
  {
   "x": 1150,
   "n": 89,
   "med": 1576,
   "q1": 1520,
   "q3": 1676
  },
  {
   "x": 1250,
   "n": 73,
   "med": 1643,
   "q1": 1539,
   "q3": 1757
  },
  {
   "x": 1350,
   "n": 80,
   "med": 1726,
   "q1": 1651,
   "q3": 1854
  },
  {
   "x": 1450,
   "n": 72,
   "med": 1793,
   "q1": 1707,
   "q3": 1913
  },
  {
   "x": 1550,
   "n": 64,
   "med": 1841,
   "q1": 1778,
   "q3": 1977
  },
  {
   "x": 1650,
   "n": 75,
   "med": 1950,
   "q1": 1856,
   "q3": 2020
  },
  {
   "x": 1750,
   "n": 54,
   "med": 2004,
   "q1": 1928,
   "q3": 2070
  },
  {
   "x": 1850,
   "n": 64,
   "med": 2090,
   "q1": 2012,
   "q3": 2137
  },
  {
   "x": 1950,
   "n": 56,
   "med": 2142,
   "q1": 2068,
   "q3": 2206
  },
  {
   "x": 2050,
   "n": 71,
   "med": 2227,
   "q1": 2144,
   "q3": 2313
  },
  {
   "x": 2150,
   "n": 49,
   "med": 2305,
   "q1": 2235,
   "q3": 2396
  },
  {
   "x": 2250,
   "n": 68,
   "med": 2365,
   "q1": 2276,
   "q3": 2468
  },
  {
   "x": 2350,
   "n": 70,
   "med": 2430,
   "q1": 2345,
   "q3": 2502
  },
  {
   "x": 2450,
   "n": 92,
   "med": 2504,
   "q1": 2422,
   "q3": 2588
  },
  {
   "x": 2550,
   "n": 122,
   "med": 2616,
   "q1": 2526,
   "q3": 2703
  },
  {
   "x": 2650,
   "n": 105,
   "med": 2704,
   "q1": 2624,
   "q3": 2755
  },
  {
   "x": 2750,
   "n": 80,
   "med": 2765,
   "q1": 2704,
   "q3": 2856
  },
  {
   "x": 2850,
   "n": 73,
   "med": 2818,
   "q1": 2741,
   "q3": 2902
  },
  {
   "x": 2950,
   "n": 40,
   "med": 2962,
   "q1": 2923,
   "q3": 3059
  },
  {
   "x": 3050,
   "n": 27,
   "med": 3014,
   "q1": 2904,
   "q3": 3045
  }
 ],
 "lichess_blitz_to_chesscom_blitz": [
  {
   "x": 750,
   "n": 22,
   "med": 458,
   "q1": 259,
   "q3": 826
  },
  {
   "x": 850,
   "n": 48,
   "med": 407,
   "q1": 354,
   "q3": 566
  },
  {
   "x": 950,
   "n": 66,
   "med": 496,
   "q1": 399,
   "q3": 580
  },
  {
   "x": 1050,
   "n": 85,
   "med": 617,
   "q1": 500,
   "q3": 752
  },
  {
   "x": 1150,
   "n": 107,
   "med": 701,
   "q1": 585,
   "q3": 829
  },
  {
   "x": 1250,
   "n": 154,
   "med": 819,
   "q1": 715,
   "q3": 968
  },
  {
   "x": 1350,
   "n": 187,
   "med": 949,
   "q1": 812,
   "q3": 1085
  },
  {
   "x": 1450,
   "n": 179,
   "med": 1033,
   "q1": 933,
   "q3": 1183
  },
  {
   "x": 1550,
   "n": 219,
   "med": 1173,
   "q1": 1068,
   "q3": 1284
  },
  {
   "x": 1650,
   "n": 185,
   "med": 1325,
   "q1": 1208,
   "q3": 1426
  },
  {
   "x": 1750,
   "n": 239,
   "med": 1489,
   "q1": 1361,
   "q3": 1604
  },
  {
   "x": 1850,
   "n": 219,
   "med": 1632,
   "q1": 1481,
   "q3": 1770
  },
  {
   "x": 1950,
   "n": 166,
   "med": 1812,
   "q1": 1691,
   "q3": 1964
  },
  {
   "x": 2050,
   "n": 160,
   "med": 1977,
   "q1": 1879,
   "q3": 2090
  },
  {
   "x": 2150,
   "n": 141,
   "med": 2194,
   "q1": 2080,
   "q3": 2331
  },
  {
   "x": 2250,
   "n": 186,
   "med": 2316,
   "q1": 2216,
   "q3": 2433
  },
  {
   "x": 2350,
   "n": 219,
   "med": 2457,
   "q1": 2372,
   "q3": 2537
  },
  {
   "x": 2450,
   "n": 215,
   "med": 2564,
   "q1": 2506,
   "q3": 2638
  },
  {
   "x": 2550,
   "n": 168,
   "med": 2708,
   "q1": 2618,
   "q3": 2790
  },
  {
   "x": 2650,
   "n": 119,
   "med": 2777,
   "q1": 2674,
   "q3": 2881
  },
  {
   "x": 2750,
   "n": 48,
   "med": 2916,
   "q1": 2827,
   "q3": 3003
  },
  {
   "x": 2850,
   "n": 19,
   "med": 2999,
   "q1": 2914,
   "q3": 3063
  }
 ],
 "lichess_bullet_to_fide_selfreported": [
  {
   "x": 1650,
   "n": 20,
   "med": 1611,
   "q1": 1436,
   "q3": 1920
  },
  {
   "x": 1750,
   "n": 18,
   "med": 1720,
   "q1": 1550,
   "q3": 1900
  },
  {
   "x": 1850,
   "n": 25,
   "med": 1732,
   "q1": 1503,
   "q3": 2000
  },
  {
   "x": 1950,
   "n": 37,
   "med": 1801,
   "q1": 1603,
   "q3": 2057
  },
  {
   "x": 2050,
   "n": 39,
   "med": 1952,
   "q1": 1700,
   "q3": 2200
  },
  {
   "x": 2150,
   "n": 44,
   "med": 1996,
   "q1": 1801,
   "q3": 2152
  },
  {
   "x": 2250,
   "n": 50,
   "med": 2131,
   "q1": 1984,
   "q3": 2224
  },
  {
   "x": 2350,
   "n": 66,
   "med": 2120,
   "q1": 2050,
   "q3": 2274
  },
  {
   "x": 2450,
   "n": 81,
   "med": 2220,
   "q1": 2085,
   "q3": 2302
  },
  {
   "x": 2550,
   "n": 84,
   "med": 2230,
   "q1": 2145,
   "q3": 2333
  },
  {
   "x": 2650,
   "n": 93,
   "med": 2302,
   "q1": 2215,
   "q3": 2383
  },
  {
   "x": 2750,
   "n": 87,
   "med": 2338,
   "q1": 2208,
   "q3": 2398
  },
  {
   "x": 2850,
   "n": 65,
   "med": 2387,
   "q1": 2300,
   "q3": 2452
  },
  {
   "x": 2950,
   "n": 45,
   "med": 2438,
   "q1": 2355,
   "q3": 2504
  },
  {
   "x": 3050,
   "n": 32,
   "med": 2454,
   "q1": 2365,
   "q3": 2581
  }
 ],
 "chesscom_bullet_to_fide_selfreported": [
  {
   "x": 2050,
   "n": 36,
   "med": 2020,
   "q1": 1950,
   "q3": 2114
  },
  {
   "x": 2150,
   "n": 31,
   "med": 2120,
   "q1": 2045,
   "q3": 2201
  },
  {
   "x": 2250,
   "n": 40,
   "med": 2202,
   "q1": 2058,
   "q3": 2248
  },
  {
   "x": 2350,
   "n": 35,
   "med": 2220,
   "q1": 2100,
   "q3": 2301
  },
  {
   "x": 2450,
   "n": 62,
   "med": 2249,
   "q1": 2153,
   "q3": 2313
  },
  {
   "x": 2550,
   "n": 91,
   "med": 2209,
   "q1": 2112,
   "q3": 2305
  },
  {
   "x": 2650,
   "n": 84,
   "med": 2256,
   "q1": 2168,
   "q3": 2380
  },
  {
   "x": 2750,
   "n": 52,
   "med": 2318,
   "q1": 2235,
   "q3": 2384
  },
  {
   "x": 2850,
   "n": 47,
   "med": 2344,
   "q1": 2244,
   "q3": 2411
  },
  {
   "x": 2950,
   "n": 25,
   "med": 2408,
   "q1": 2352,
   "q3": 2516
  },
  {
   "x": 3050,
   "n": 20,
   "med": 2446,
   "q1": 2321,
   "q3": 2507
  }
 ]
}