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Washington DC DC-4 Due Sums

These tables show, for every Washington DC DC-4 sum and root sum, how many draws it has gone without hitting and how that compares with its historical average gap.

What this page means, in plain words: add the three digits of a draw together and you get its sum (4-1-9 → 14). Keep adding until one digit is left and you get its root sum (14 → 1+4 = 5). Some players track how long each sum has gone without appearing — "draws out" is that count, and "average gap" is how often it normally shows up. A sum that is out longer than its average gap is what players call "due" — but remember, every draw is random and nothing is ever actually due.

Due Root Sums

Root sum	Draws out	Average gap	Times due
1	43	9.07	180
2	1	9.16	196
3	8	8.99	243
4	5	9.28	203
5	19	8.82	219
6	7	8.13	228
7	2	9.09	195
8	3	8.94	219
9	0	9.54	211

All sums 0–36

Sum	Draws out	Hits (365d)	Average gap	Times due
0	2465	0	—	0
1	579	1	1022.0	2
2	460	2	506.22	3
3	77	5	331.47	8
4	5	3	237.33	8
5	147	6	147.93	12
6	220	10	96.41	17
7	81	12	99.08	17
8	10	24	53.48	41
9	125	16	49.43	32
10	73	30	35.94	56
11	26	34	27.19	68
12	8	30	26.02	69
13	27	54	21.97	81
14	24	52	18.9	98
15	15	69	15.37	113
16	2	88	15.51	122
17	3	71	15.73	122
18	0	77	15.19	124
19	43	69	15.29	123
20	1	67	16.86	117
21	39	71	16.35	114
22	12	52	18.79	106
23	19	56	20.42	100
24	7	49	22.08	88
25	59	41	28.07	67
26	14	32	34.0	52
27	31	20	50.01	39
28	114	15	59.58	29
29	52	13	88.14	22
30	17	9	115.36	15
31	42	6	199.79	11
32	561	6	165.89	12
33	758	1	362.42	5
34	759	1	1440.0	1
35	4430	0	153.0	0
36	5148	0	—	0

Skip Grid — the digit ledger

Where this chart comes from: long-time Pick 3 players track draws by hand in ruled notebooks — one row per draw, one column per digit, crossing off digits as they hit and counting the misses in between. This is that same ledger, kept for you automatically. The count in a blank cell is the digit's skip — how many draws in a row it has missed at that point.

Skip Grid (✗ = digit hit that draw)

Open the full skip grid page →