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PrimeGrid's Challenge Series

The PrimeGrid Challenge Series is an annual competition based on the results of monthly challenges.  The purpose of the Challenge is to spotlight a specific project within PrimeGrid's family of projects as well as to offer a little "healthy" competition for PrimeGrid's participants.  It is also an opportunity for people to learn more about each specific project and have fun doing it.  Below is a tentative schedule for 2023.

2008 Final Standings | 2009 Final Standings | 2010 Final Standings | 2011 Final Standings | 2012 Final Standings | 2013 Final Standings | 2014 Final Standings | 2015 Final Standings | 2016 Final Standings | 2017 Final Standings | 2018 Final Standings | 2019 Final Standings | 2020 Final Standings | 2021 Final Standings | 2022 Final Standings


2023 Challenge Series


DateTime UTCProject(s)ChallengeDurationResults
122-25 January12:00:00PPS-MEGA
GFN-17-MEGA
A Prime Chinese New Year Challenge3 daysIndividuals | Teams
28-9 March15:00:00SGSInternational Women's Day Challenge1 dayIndividuals | Teams
316-23 April16:00:00PSPGotthold Eisenstein's Birthday Challenge7 daysIndividuals | Teams
419-24 June20:00:00321Blaise Pascal's Birthday Challenge5 daysIndividuals | Teams
58-15 July21:00:00CW-SieveMath 2.0 Day Challenge7 daysIndividuals | Teams
615-18 August02:00:00AP-27Chant at the Moon Day Challenge3 daysIndividuals | Teams
713-23 September11:00:00SoBWorld Peace Day Challenge10 daysIndividuals | Teams
831 October - 5 November13:00:00ESPChristmas Challenge5 daysIndividuals | Teams
910-20 December19:00:00GFN-18
GFN-19
GFN-20
Chris Caldwell Honorary Challenge10 daysIndividuals | Teams



Current Overall Standings

Points will be awarded based on each challenge finish with an annual champion (individual and team) crowned at the end of each year.  Challenge points are awarded as follows based on order of finish:


Individual Challenge Points

Duration of Challenge
Place 1 Day 3 Day 5 Day 7 Day 10 Day 15 Day
11,000.01,500.02,000.02,500.03,250.03,650.0
2933.31,400.01,866.72,333.33,033.33,406.7
3866.71,300.01,733.32,166.72,816.73,163.3
4816.71,225.01,633.32,041.72,654.22,980.8
5766.71,150.01,533.31,916.72,491.72,798.3
6716.71,075.01,433.31,791.72,329.22,615.8
7683.31,025.01,366.71,708.32,220.82,494.2
8650.0975.01,300.01,625.02,112.52,372.5
9616.7925.01,233.31,541.72,004.22,250.8
10600.0900.01,200.01,500.01,950.02,190.0
11583.3875.01,166.71,458.31,895.82,129.2
12566.7850.01,133.31,416.71,841.72,068.3
13556.7835.01,113.31,391.71,809.22,031.8
14546.7820.01,093.31,366.71,776.71,995.3
15536.7805.01,073.31,341.71,744.21,958.8
16526.7790.01,053.31,316.71,711.71,922.3
17516.7775.01,033.31,291.71,679.21,885.8
18510.0765.01,020.01,275.01,657.51,861.5
19503.3755.01,006.71,258.31,635.81,837.2
20496.7745.0993.31,241.71,614.21,812.8
21490.0735.0980.01,225.01,592.51,788.5
22483.3725.0966.71,208.31,570.81,764.2
23476.7715.0953.31,191.71,549.21,739.8
24470.0705.0940.01,175.01,527.51,715.5
25463.3695.0926.71,158.31,505.81,691.2
26456.7685.0913.31,141.71,484.21,666.8
27450.0675.0900.01,125.01,462.51,642.5
28446.7670.0893.31,116.71,451.71,630.3
29443.3665.0886.71,108.31,440.81,618.2
30440.0660.0880.01,100.01,430.01,606.0
31436.7655.0873.31,091.71,419.21,593.8
32433.3650.0866.71,083.31,408.31,581.7
33430.0645.0860.01,075.01,397.51,569.5
34426.7640.0853.31,066.71,386.71,557.3
35423.3635.0846.71,058.31,375.81,545.2
36420.0630.0840.01,050.01,365.01,533.0
37416.7625.0833.31,041.71,354.21,520.8
38413.3620.0826.71,033.31,343.31,508.7
39410.0615.0820.01,025.01,332.51,496.5
40406.7610.0813.31,016.71,321.71,484.3
41403.3605.0806.71,008.31,310.81,472.2
42400.0600.0800.01,000.01,300.01,460.0
43397.3596.0794.7993.31,291.31,450.3
44394.7592.0789.3986.71,282.71,440.5
45392.0588.0784.0980.01,274.01,430.8
46389.3584.0778.7973.31,265.31,421.1
47386.7580.0773.3966.71,256.71,411.3
48384.0576.0768.0960.01,248.01,401.6
49381.3572.0762.7953.31,239.31,391.9
50378.7568.0757.3946.71,230.71,382.1
51376.0564.0752.0940.01,222.01,372.4
52373.3560.0746.7933.31,213.31,362.7
53370.7556.0741.3926.71,204.71,352.9
54368.0552.0736.0920.01,196.01,343.2
55365.3548.0730.7913.31,187.31,333.5
56362.7544.0725.3906.71,178.71,323.7
57360.0540.0720.0900.01,170.01,314.0
58357.3536.0714.7893.31,161.31,304.3
59354.7532.0709.3886.71,152.71,294.5
60352.0528.0704.0880.01,144.01,284.8
61349.3524.0698.7873.31,135.31,275.1
62346.7520.0693.3866.71,126.71,265.3
63344.0516.0688.0860.01,118.01,255.6
64341.3512.0682.7853.31,109.31,245.9
65338.7508.0677.3846.71,100.71,236.1
66336.0504.0672.0840.01,092.01,226.4
67333.7500.5667.3834.21,084.41,217.9
68331.3497.0662.7828.31,076.81,209.4
69329.0493.5658.0822.51,069.31,200.9
70326.7490.0653.3816.71,061.71,192.3
71324.3486.5648.7810.81,054.11,183.8
72322.0483.0644.0805.01,046.51,175.3
73319.7479.5639.3799.21,038.91,166.8
74317.3476.0634.7793.31,031.31,158.3
75315.0472.5630.0787.51,023.81,149.8
76312.7469.0625.3781.71,016.21,141.2
77310.3465.5620.7775.81,008.61,132.7
78308.0462.0616.0770.01,001.01,124.2
79305.7458.5611.3764.2993.41,115.7
80303.3455.0606.7758.3985.81,107.2
81301.0451.5602.0752.5978.21,098.7
82298.7448.0597.3746.7970.71,090.1
83296.3444.5592.7740.8963.11,081.6
84294.0441.0588.0735.0955.51,073.1
85291.7437.5583.3729.2947.91,064.6
86289.3434.0578.7723.3940.31,056.1
87287.0430.5574.0717.5932.71,047.6
88284.7427.0569.3711.7925.21,039.0
89282.3423.5564.7705.8917.61,030.5
90280.0420.0560.0700.0910.01,022.0
91277.7416.5555.3694.2902.41,013.5
92275.3413.0550.7688.3894.81,005.0
93273.0409.5546.0682.5887.3996.5
94270.7406.0541.3676.7879.7987.9
95268.3402.5536.7670.8872.1979.4
96266.0399.0532.0665.0864.5970.9
97263.7395.5527.3659.2856.9962.4
98261.7392.5523.3654.2850.4955.1
99259.7389.5519.3649.2843.9947.8
100257.7386.5515.3644.2837.4940.5
101255.7383.5511.3639.2830.9933.2
102253.7380.5507.3634.2824.4925.9
103251.7377.5503.3629.2817.9918.6
104249.7374.5499.3624.2811.4911.3
105247.7371.5495.3619.2804.9904.0
106245.7368.5491.3614.2798.4896.7
107243.7365.5487.3609.2791.9889.4
108241.7362.5483.3604.2785.4882.1
109239.7359.5479.3599.2778.9874.8
110237.7356.5475.3594.2772.4867.5
111235.7353.5471.3589.2765.9860.2
112233.7350.5467.3584.2759.4852.9
113231.7347.5463.3579.2752.9845.6
114229.7344.5459.3574.2746.4838.3
115227.7341.5455.3569.2739.9831.0
116225.7338.5451.3564.2733.4823.7
117223.7335.5447.3559.2726.9816.4
118221.7332.5443.3554.2720.4809.1
119219.7329.5439.3549.2713.9801.8
120217.7326.5435.3544.2707.4794.5
121215.7323.5431.3539.2700.9787.2
122213.7320.5427.3534.2694.4779.9
123211.7317.5423.3529.2687.9772.6
124209.7314.5419.3524.2681.4765.3
125207.7311.5415.3519.2674.9758.0
126205.7308.5411.3514.2668.4750.7
127203.7305.5407.3509.2661.9743.4
128201.7302.5403.3504.2655.4736.1
129199.7299.5399.3499.2648.9728.8
130197.7296.5395.3494.2642.4721.5
131195.7293.5391.3489.2635.9714.2
132193.7290.5387.3484.2629.4706.9
133192.0288.0384.0480.0624.0700.8
134190.3285.5380.7475.8618.6694.7
135188.7283.0377.3471.7613.2688.6
136187.0280.5374.0467.5607.8682.6
137185.3278.0370.7463.3602.3676.5
138183.7275.5367.3459.2596.9670.4
139182.0273.0364.0455.0591.5664.3
140180.3270.5360.7450.8586.1658.2
141178.7268.0357.3446.7580.7652.1
142177.0265.5354.0442.5575.3646.0
143175.3263.0350.7438.3569.8640.0
144173.7260.5347.3434.2564.4633.9
145172.0258.0344.0430.0559.0627.8
146170.3255.5340.7425.8553.6621.7
147168.7253.0337.3421.7548.2615.6
148167.0250.5334.0417.5542.8609.5
149165.3248.0330.7413.3537.3603.5
150163.7245.5327.3409.2531.9597.4
151162.0243.0324.0405.0526.5591.3
152160.3240.5320.7400.8521.1585.2
153158.7238.0317.3396.7515.7579.1
154157.0235.5314.0392.5510.3573.0
155155.3233.0310.7388.3504.8567.0
156153.7230.5307.3384.2499.4560.9
157152.0228.0304.0380.0494.0554.8
158150.3225.5300.7375.8488.6548.7
159148.7223.0297.3371.7483.2542.6
160147.0220.5294.0367.5477.8536.5
161145.3218.0290.7363.3472.3530.5
162143.7215.5287.3359.2466.9524.4
163142.0213.0284.0355.0461.5518.3
164140.3210.5280.7350.8456.1512.2
165138.7208.0277.3346.7450.7506.1
166137.0205.5274.0342.5445.3500.0
167135.3203.0270.7338.3439.8494.0
168133.7200.5267.3334.2434.4487.9
169132.0198.0264.0330.0429.0481.8
170130.7196.0261.3326.7424.7476.9
171129.3194.0258.7323.3420.3472.1
172128.0192.0256.0320.0416.0467.2
173126.7190.0253.3316.7411.7462.3
174125.3188.0250.7313.3407.3457.5
175124.0186.0248.0310.0403.0452.6
176122.7184.0245.3306.7398.7447.7
177121.3182.0242.7303.3394.3442.9
178120.0180.0240.0300.0390.0438.0
179118.7178.0237.3296.7385.7433.1
180117.3176.0234.7293.3381.3428.3
181116.0174.0232.0290.0377.0423.4
182114.7172.0229.3286.7372.7418.5
183113.3170.0226.7283.3368.3413.7
184112.0168.0224.0280.0364.0408.8
185110.7166.0221.3276.7359.7403.9
186109.3164.0218.7273.3355.3399.1
187108.0162.0216.0270.0351.0394.2
188106.7160.0213.3266.7346.7389.3
189105.3158.0210.7263.3342.3384.5
190104.0156.0208.0260.0338.0379.6
191102.7154.0205.3256.7333.7374.7
192101.3152.0202.7253.3329.3369.9
193100.0150.0200.0250.0325.0365.0
19498.7148.0197.3246.7320.7360.1
19597.3146.0194.7243.3316.3355.3
19696.0144.0192.0240.0312.0350.4
19794.7142.0189.3236.7307.7345.5
19893.3140.0186.7233.3303.3340.7
19992.0138.0184.0230.0299.0335.8
20090.7136.0181.3226.7294.7330.9
20189.3134.0178.7223.3290.3326.1
20288.0132.0176.0220.0286.0321.2
20386.7130.0173.3216.7281.7316.3
20485.3128.0170.7213.3277.3311.5
20584.0126.0168.0210.0273.0306.6
20683.0124.5166.0207.5269.8303.0
20782.0123.0164.0205.0266.5299.3
20881.0121.5162.0202.5263.3295.7
20980.0120.0160.0200.0260.0292.0
21079.0118.5158.0197.5256.8288.4
21178.0117.0156.0195.0253.5284.7
21277.0115.5154.0192.5250.3281.1
21376.0114.0152.0190.0247.0277.4
21475.0112.5150.0187.5243.8273.8
21574.0111.0148.0185.0240.5270.1
21673.0109.5146.0182.5237.3266.5
21772.0108.0144.0180.0234.0262.8
21871.0106.5142.0177.5230.8259.2
21970.0105.0140.0175.0227.5255.5
22069.0103.5138.0172.5224.3251.9
22168.0102.0136.0170.0221.0248.2
22267.0100.5134.0167.5217.8244.6
22366.099.0132.0165.0214.5240.9
22465.097.5130.0162.5211.3237.3
22564.096.0128.0160.0208.0233.6
22663.094.5126.0157.5204.8230.0
22762.093.0124.0155.0201.5226.3
22861.091.5122.0152.5198.3222.7
22960.090.0120.0150.0195.0219.0
23059.088.5118.0147.5191.8215.4
23158.087.0116.0145.0188.5211.7
23257.085.5114.0142.5185.3208.1
23356.084.0112.0140.0182.0204.4
23455.082.5110.0137.5178.8200.8
23554.081.0108.0135.0175.5197.1
23653.079.5106.0132.5172.3193.5
23752.078.0104.0130.0169.0189.8
23851.076.5102.0127.5165.8186.2
23950.075.0100.0125.0162.5182.5
24049.073.598.0122.5159.3178.9
24148.072.096.0120.0156.0175.2
24247.070.594.0117.5152.8171.6
24346.069.092.0115.0149.5167.9
24445.067.590.0112.5146.3164.3
24544.066.088.0110.0143.0160.6
24643.064.586.0107.5139.8157.0
24742.063.084.0105.0136.5153.3
24841.362.082.7103.3134.3150.9
24940.761.081.3101.7132.2148.4
25040.060.080.0100.0130.0146.0
25139.359.078.798.3127.8143.6
25238.758.077.396.7125.7141.1
25338.057.076.095.0123.5138.7
25437.356.074.793.3121.3136.3
25536.755.073.391.7119.2133.8
25636.054.072.090.0117.0131.4
25735.353.070.788.3114.8129.0
25834.752.069.386.7112.7126.5
25934.051.068.085.0110.5124.1
26033.350.066.783.3108.3121.7
26132.749.065.381.7106.2119.2
26232.048.064.080.0104.0116.8
26331.347.062.778.3101.8114.4
26430.746.061.376.799.7111.9
26530.045.060.075.097.5109.5
26629.344.058.773.395.3107.1
26728.743.057.371.793.2104.6
26828.042.056.070.091.0102.2
26927.341.054.768.388.899.8
27026.740.053.366.786.797.3
27126.039.052.065.084.594.9
27225.338.050.763.382.392.5
27324.737.049.361.780.290.0
27424.036.048.060.078.087.6
27523.335.046.758.375.885.2
27622.734.045.356.773.782.7
27722.033.044.055.071.580.3
27821.332.042.753.369.377.9
27920.731.041.351.767.275.4
28020.030.040.050.065.073.0
28119.329.038.748.362.870.6
28218.728.037.346.760.768.1
28318.027.036.045.058.565.7
28417.326.034.743.356.363.3
28516.725.033.341.754.260.8
28616.024.032.040.052.058.4
28715.323.030.738.349.856.0
28814.722.029.336.747.753.5
28914.021.028.035.045.551.1
29013.320.026.733.343.348.7
29112.719.025.331.741.246.2
29212.018.024.030.039.043.8
29311.317.022.728.336.841.4
29410.716.021.326.734.738.9
29510.015.020.025.032.536.5
2969.314.018.723.330.334.1
2978.713.017.321.728.231.6
2988.012.016.020.026.029.2
2997.311.014.718.323.826.8
3006.710.013.316.721.724.3




Team Challenge Points

Duration of Challenge
Place
1 Day
3 Day
5 Days
7 Days
10 Days
15 Days
1375.0500.0625.0750.01,000.01,125.0
2360.0480.0600.0720.0960.01,080.0
3345.0460.0575.0690.0920.01,035.0
4333.8445.0556.3667.5890.01,001.3
5322.5430.0537.5645.0860.0967.5
6311.3415.0518.8622.5830.0933.8
7300.0400.0500.0600.0800.0900.0
8288.8385.0481.3577.5770.0866.3
9277.5370.0462.5555.0740.0832.5
10270.0360.0450.0540.0720.0810.0
11262.5350.0437.5525.0700.0787.5
12255.0340.0425.0510.0680.0765.0
13247.5330.0412.5495.0660.0742.5
14240.0320.0400.0480.0640.0720.0
15232.5310.0387.5465.0620.0697.5
16225.0300.0375.0450.0600.0675.0
17217.5290.0362.5435.0580.0652.5
18210.0280.0350.0420.0560.0630.0
19202.5270.0337.5405.0540.0607.5
20197.3263.0328.8394.5526.0591.8
21192.0256.0320.0384.0512.0576.0
22186.8249.0311.3373.5498.0560.3
23181.5242.0302.5363.0484.0544.5
24176.3235.0293.8352.5470.0528.8
25171.0228.0285.0342.0456.0513.0
26165.8221.0276.3331.5442.0497.3
27160.5214.0267.5321.0428.0481.5
28155.3207.0258.8310.5414.0465.8
29150.0200.0250.0300.0400.0450.0
30144.8193.0241.3289.5386.0434.3
31139.5186.0232.5279.0372.0418.5
32134.3179.0223.8268.5358.0402.8
33129.0172.0215.0258.0344.0387.0
34125.3167.0208.8250.5334.0375.8
35121.5162.0202.5243.0324.0364.5
36117.8157.0196.3235.5314.0353.3
37114.0152.0190.0228.0304.0342.0
38110.3147.0183.8220.5294.0330.8
39106.5142.0177.5213.0284.0319.5
40102.8137.0171.3205.5274.0308.3
4199.0132.0165.0198.0264.0297.0
4295.3127.0158.8190.5254.0285.8
4391.5122.0152.5183.0244.0274.5
4487.8117.0146.3175.5234.0263.3
4584.0112.0140.0168.0224.0252.0
4680.3107.0133.8160.5214.0240.8
4776.5102.0127.5153.0204.0229.5
4874.399.0123.8148.5198.0222.8
4972.096.0120.0144.0192.0216.0
5069.893.0116.3139.5186.0209.3
5167.590.0112.5135.0180.0202.5
5265.387.0108.8130.5174.0195.8
5363.084.0105.0126.0168.0189.0
5460.881.0101.3121.5162.0182.3
5558.578.097.5117.0156.0175.5
5656.375.093.8112.5150.0168.8
5754.072.090.0108.0144.0162.0
5851.869.086.3103.5138.0155.3
5949.566.082.599.0132.0148.5
6047.363.078.894.5126.0141.8
6145.861.076.391.5122.0137.3
6244.359.073.888.5118.0132.8
6342.857.071.385.5114.0128.3
6441.355.068.882.5110.0123.8
6539.853.066.379.5106.0119.3
6638.351.063.876.5102.0114.8
6736.849.061.373.598.0110.3
6835.347.058.870.594.0105.8
6933.845.056.367.590.0101.3
7032.343.053.864.586.096.8
7130.841.051.361.582.092.3
7229.339.048.858.578.087.8
7327.837.046.355.574.083.3
7426.335.043.852.570.078.8
7524.833.041.349.566.074.3
7623.331.038.846.562.069.8
7721.829.036.343.558.065.3
7820.327.033.840.554.060.8
7918.825.031.337.550.056.3
8017.323.028.834.546.051.8
8115.821.026.331.542.047.3
8214.319.025.030.040.045.0
8313.518.023.828.538.042.8
8412.817.022.527.036.040.5
8512.016.021.325.534.038.3
8611.315.020.024.032.036.0
8710.514.018.822.530.033.8
889.813.017.521.028.031.5
899.012.016.319.526.029.3
908.311.015.018.024.027.0
917.510.013.816.522.024.8
926.89.012.515.020.022.5
936.08.011.313.518.020.3
945.37.010.012.016.018.0
954.56.08.810.514.015.8
963.85.07.59.012.013.5
973.04.06.37.510.011.3
982.33.05.06.08.09.0
991.52.03.84.56.06.8
100.81.02.53.04.04.5

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