Tamura Kazumasa, Japan - Renju Rating

JPN Tamura Kazumasa (田村一誠)

Place: Tokyo, Japan

Rating: 2335.99, Std: 92.43, Rank: 274

First game: 2002-08-02, Last game: 2026-05-24

Top rating: 2528.42 (2012-05-06)

Games: 313, Wins: 155, Draws: 41, Losses: 117

Gy1: 34, Gy2: 34, Gy5: 34

64th Meijin-sen Tokyo area 1st round
Date2026-05-24Rating2335.99
RoundColorResultOpponent
1BlackLossJPN Kawamura Norihiko2551.56
2BlackWinJPN Maruta Koji2136.21
3BlackLossJPN Ono Takayuki2389.26
4BlackDrawJPN Maruta Hiroki2259.11
43rd Kanto Championship
Date2026-04-05Rating2338.81
RoundColorResultOpponent
1BlackLossJPN Kamiya Shunsuke2842.35
2BlackDrawJPN Miyamoto Syunju2343.29
3WhiteLossJPN Matsuda Shoma2570.71
4BlackWinJPN Lu Yuyang1946.18
5WhiteLossJPN Ishitani Shin-ichi2348.94
6BlackWinJPN Kasahara Reiko1870.79
20th All Japan Championship
Date2026-02-23Rating2343.81
RoundColorResultOpponent
1WhiteLossJPN Nakayama Tomoharu2821.72
2BlackLossJPN Fujita Maiko2485.08
3BlackWinJPN Maruta Hiroki2260.59
4BlackDrawJPN Tanaka Shotaro2389.80
5WhiteDrawJPN Matsuda Shoma2578.24
6WhiteLossJPN Ishitani Shin-ichi2351.64
51 Tokai Championship final match
Date2026-02-15Rating2344.89
RoundColorResultOpponent
1BlackLossJPN Ishitani Shin-ichi2352.52
2BlackWinJPN Ishitani Shin-ichi2352.52
3WhiteDrawJPN Ishitani Shin-ichi2352.52
4WhiteWinJPN Ishitani Shin-ichi2352.52
29th New Year (Mikami) Cup
Date2026-01-11Rating2347.48
RoundColorResultOpponent
S1WhiteLossCHN Wang Qingqing2718.93
S2BlackDrawJPN Fujita Maiko2487.23
S3BlackLossJPN Matsuda Shoma2593.58
51 Tokai Championship 2nd round
Date2025-12-21Rating2349.30
RoundColorResultOpponent
1BlackWinJPN Mano Yoshihisa2196.86
2BlackWinJPN Takazawa Nagayoshi2259.36
3WhiteDrawJPN Ishitani Shin-ichi2359.99
51 Tokai Championship 1st round Hamamatsu area
Date2025-11-09Rating2349.74
RoundColorResultOpponent
1WhiteWinJPN Yamamoto Yasuhiro2147.49
2WhiteWinJPN Maruyama Yasushi2248.93
3BlackLossJPN Takazawa Nagayoshi2262.91
4WhiteWinJPN Kawada Miki1874.01
26 Kanto Renju Emperor Tournament Qualification round
Date2025-10-19Rating2349.88
RoundColorResultOpponent
1BlackLossJPN Tanaka Shotaro2373.38
2BlackLossJPN Maruta Hiroki2262.68
3WhiteWinJPN Komatsu Subaru1943.70
4BlackWinJPN Kawamura Norihiko2520.64
52 Meijinsen Qualification East Japan area 1st round
Date2014-06-08Rating2503.79
RoundColorResultOpponent
1BlackLossJPN Tada Ayako2315.94
2WhiteLossJPN Nakayama Tomoharu2706.02
3WhiteWinJPN Kato Yasuhiro2099.26
4WhiteLossJPN Iwano Fumio2264.18
31th Kanto Championship
Date2014-05-11Rating2510.10
RoundColorResultOpponent
1BlackDrawJPN Iwano Fumio2263.41
2BlackWinJPN Maruta Koji2183.65
3BlackDrawJPN Okabe Hiroshi2758.17
4BlackWinJPN Ono Takayuki2381.32
5BlackWinJPN Nakamura Shigeru2886.81
Team World Championship 2014
Date2014-05-03Rating2510.70
RoundColorResultOpponent
2WhiteLossTPE Lin Shih-Pin2505.50
3BlackLossEST Meritee Ando2904.16
5WhiteDrawTPE Chen Wei-Han2470.15
6BlackLossJPN Ishitani Shin-ichi2456.87
7BlackWinTPE Lin Shih-Pin2505.50
9BlackWinRRA Artemyev Sergey2595.95
9th All Japan Championship
Date2014-01-26Rating2519.31
RoundColorResultOpponent
1WhiteLossJPN Kato Yasuhiro2115.31
2BlackWinJPN Kubo Izumi2114.98
3WhiteLossJPN Oosumi Yuuki2834.82
4BlackWinJPN Maruta Hiroki2125.75
5WhiteWinJPN Nakayama Tomoharu2675.01
6BlackLossJPN Okabe Hiroshi2763.37
14th Mikami Cup S-class
Date2014-01-19Rating2520.20
RoundColorResultOpponent
1BlackWinJPN Isobe Taizan2400.91
2BlackDrawJPN Nakamura Shigeru2893.44
3BlackLossJPN Okabe Hiroshi2763.20
4BlackWinJPN Ono Takayuki2375.55
5BlackWinJPN Fukui Nobuhiro2611.22
14 Kanto Renju Emperor Tournament 2nd round
Date2013-12-15Rating2519.00
RoundColorResultOpponent
1BlackLossJPN Sato Kiyotomi2467.05
2BlackLossJPN Kamiya Shunsuke2578.77
3BlackDrawJPN Okabe Hiroshi2761.65
4BlackWinJPN Fukui Nobuhiro2606.02
5BlackLossJPN Nakamura Shigeru2894.43
44 Kyoto Classified Tournament
Date2012-11-11Rating2512.69
RoundColorResultOpponent
S1BlackLossJPN Hasegawa Kazuto2595.52
S2BlackLossJPN Iio Yoshihiro2472.86
S4WhiteDrawJPN Ono Takayuki2422.76
S5BlackWinJPN Hata Masayuki2243.61
Team World Championship 2012
Date2012-05-06Rating2528.42
RoundColorResultOpponent
3BlackDrawRRA Makarov Pavel2624.92
4BlackWinTPE Sung Pei-Jung2007.00
5BlackDrawEST Hõbemägi Martin2511.34
6BlackWinCHN Chen Wei2471.81
10BlackWinCHN Huang Shengming2522.75
48th Meijinsen Qualification East-Japan area 2nd round
Date2010-07-11Rating2504.77
RoundColorResultOpponent
1WhiteWinJPN Tada Ayako2194.55
2WhiteLossJPN Kudomi Takahiro2399.44
3BlackWinJPN Tamada Yoichi2485.72
4BlackLossJPN Ono Takayuki2388.19
5BlackLossJPN Yamaguchi Yusui2589.10
27th Kanto Championship
Date2010-05-23Rating2508.87
RoundColorResultOpponent
1WhiteWinJPN Arai Kazumi2313.31
2BlackLossJPN Okabe Hiroshi2704.76
3BlackWinJPN Isobe Taizan2394.95
4WhiteWinJPN Kawamura Norihiko2587.06
5WhiteWinJPN Kato Yasuhiro2094.74
Team World Championship 2010
Date2010-05-05Rating2508.31
RoundColorResultOpponent
1BlackLossJPN Hasegawa Kazuto2687.29
2WhiteLossCHN Cao Dong2719.90
3BlackLossRRA Karasyov Maxim2660.82
4BlackWinEST Oll Aivo2726.73
5BlackWinEST Mirme Madli2213.17
6BlackLossTPE Lu Wei-Yuan2496.69
7BlackDrawUKR Yakovleva Alyona2032.45
9BlackWinEST Mirme Madli2213.17
10BlackLossRRA Karasyov Maxim2660.82
5th All Japan Championship
Date2010-03-21Rating2511.62
RoundColorResultOpponent
1WhiteWinJPN Kato Yasuhiro2099.62
2BlackWinJPN Shimoyama Takuma2265.92
3BlackWinJPN Nakamura Shigeru2854.63
4BlackLossJPN Okabe Hiroshi2702.98
5BlackLossJPN Oosumi Yuuki2650.03
6BlackWinJPN Iwano Fumio2118.04
13th Mikami Cup Tournament
Date2010-01-31Rating2511.46
RoundColorResultOpponent
S1BlackLossJPN Yamaguchi Yusui2586.34
S2BlackWinJPN Ono Takayuki2383.02
S3BlackWinJPN Isobe Taizan2395.98
S4BlackLossJPN Nakamura Shigeru2858.45
S5BlackWinJPN Ishitani Shin-ichi2389.10
10 Kanto Renju Emperor Tournament 2nd round
Date2009-12-20Rating2509.08
RoundColorResultOpponent
1WhiteLossJPN Okabe Hiroshi2683.43
2WhiteLossJPN Nakamura Shigeru2859.49
3BlackWinJPN Nagao Noriaki2352.67
4WhiteWinJPN Tamada Yoichi2421.10
5BlackLossJPN Ono Takayuki2387.54
40th Kyoto Classified - Special class
Date2009-11-09Rating2508.53
RoundColorResultOpponent
1WhiteLossJPN Hasegawa Kazuto2712.06
2WhiteWinJPN Okumura Toyohiko2330.92
3BlackWinJPN Kubo Izumi2115.49
4BlackLossJPN Sakamoto Suzan2321.56
5WhiteDrawJPN Okabe Hiroshi2673.79
41 Kyoto Classified Tournament
Date2009-11-08Rating2508.56
RoundColorResultOpponent
S1BlackWinJPN Kubo Izumi2115.42
S2WhiteWinJPN Ishitani Shin-ichi2370.77
S3BlackDrawJPN Hasegawa Kazuto2712.13
S4BlackWinJPN Miyoshi Takeo2157.95
S5WhiteLossJPN Oosumi Yuuki2630.94
10 Kanto Renju Emperor Tournament 1st round
Date2009-10-04Rating2507.88
RoundColorResultOpponent
1BlackWinJPN Matsuoka Teruo1930.35
2BlackWinJPN Tamada Yoichi2394.59
3BlackWinJPN Hara Masao2019.41
4WhiteWinJPN Fukui Nobuhiro2318.93
47th Meijinsen tournament
Date2009-09-22Rating2506.73
RoundColorResultOpponent
1BlackLossJPN Iio Yoshihiro2516.34
2WhiteLossJPN Kawamura Norihiko2634.09
3WhiteLossJPN Yamaguchi Yusui2575.91
4WhiteWinJPN Okabe Hiroshi2673.27
5BlackDrawJPN Kataoka Mitsuaki2259.56
6BlackWinJPN Matsuura Hiroshi2367.08
7BlackWinJPN Sakamoto Suzan2310.83
8BlackDrawJPN Ishitani Shin-ichi2370.58
9BlackDrawJPN Oosumi Yuuki2626.95
World Championship 2009, BT
Date2009-08-13Rating2504.07
RoundColorResultOpponent
1WhiteWinTPE Lin Ting-Wei2398.99
2WhiteWinRRA Nikonova Natalya2371.80
3BlackLossJPN Oosumi Yuuki2625.95
4WhiteLossCHN Yin Licheng2501.51
5WhiteLossEST Lents Johann2491.31
6BlackWinSWE Andersson Tord2410.57
7BlackDrawRRA Nikonov Konstantin2584.56
8BlackLossJPN Ishitani Shin-ichi2376.40
9BlackWinJPN Miyagawa Sou2135.70
World Championship 2009, QT
Date2009-08-05Rating2504.22
RoundColorResultOpponent
1BlackWinEST Pajuste Renee2416.70
2BlackLossSVK Eged Igor2436.72
3BlackDrawCZE Nykl Ondřej2551.04
4BlackWinSWE Jellve Emma2108.07
5BlackLossSWE Karlsson Stefan2571.75
6WhiteLossTPE Lin Ting-Wei2400.15
7WhiteLossCHN Yao Jinrui2341.49
47th Meijinsen Qualification East-Japan area final round
Date2009-07-05Rating2511.10
RoundColorResultOpponent
1WhiteWinJPN Kudomi Takahiro2366.44
2BlackWinJPN Arita Nobuyoshi2369.14
3BlackWinJPN Ono Takayuki2403.18
4BlackDrawJPN Yamaguchi Yusui2574.95
5BlackDrawJPN Mitsumori Masao2340.52
47th Meijinsen Qualification East-Japan area 1st round
Date2009-06-14Rating2513.84
RoundColorResultOpponent
1BlackWinJPN Kato Yasuhiro2030.71
2WhiteWinJPN Arita Nobuyoshi2370.39
3BlackWinJPN Shimoyama Takuma2241.73
4BlackWinJPN Mitsumori Masao2343.22
26th Kanto Championship
Date2009-05-17Rating2514.98
RoundColorResultOpponent
1WhiteWinJPN Tamada Yoichi2317.10
2BlackWinJPN Isobe Taizan2407.74
3WhiteLossJPN Nakamura Shigeru2858.01
4WhiteWinJPN Iwano Fumio2172.60
5WhiteDrawJPN Okabe Hiroshi2670.98
4th All Japan Championship
Date2009-03-21Rating2512.21
RoundColorResultOpponent
1BlackWinJPN Maruta Hiroki2093.19
2BlackWinJPN Iio Yoshihiro2487.05
3BlackDrawJPN Oosumi Yuuki2612.50
4WhiteWinJPN Yamaguchi Yusui2565.75
5BlackLossJPN Nakamura Shigeru2859.16
6BlackWinJPN Sato Kiyotomi2450.33
4 Kansai Championship 3rd round
Date2009-02-15Rating2504.68
RoundColorResultOpponent
1BlackWinJPN Iio Yoshihiro2486.97
2BlackDrawJPN Takashima Junya2529.19
3WhiteLossJPN Oosumi Yuuki2603.50
12th Mikami Cup Tournament
Date2009-01-18Rating2498.02
RoundColorResultOpponent
S1BlackWinJPN Isobe Taizan2399.98
S2BlackLossJPN Nakamura Shigeru2861.23
S3BlackWinJPN Arita Nobuyoshi2381.34
S4BlackLossJPN Ishitani Shin-ichi2399.68
S5WhiteLossJPN Kawamura Norihiko2656.95
4th Kansai Championship, 2nd round
Date2008-11-16Rating2485.36
RoundColorResultOpponent
1WhiteWinJPN Takashima Junya2530.20
2WhiteWinJPN Koiso Shigemasa2160.35
3BlackDrawJPN Iio Yoshihiro2499.39
4BlackWinJPN Miyagawa Junzo2235.51
7th 6-7 dan Tournament
Date2008-09-28Rating2470.57
RoundColorResultOpponent
1BlackWinJPN Kobayashi Koichi2109.53
2WhiteWinJPN Maruyama Yasushi2234.93
3BlackWinJPN Ono Takayuki2410.15
4WhiteWinJPN Kubo Izumi2109.25
5BlackLossJPN Gakumazawa Hideaki2179.30
6WhiteWinJPN Tanno Yoshitaka2119.17
46th Meijinsen Qualification Kansai area 1st round
Date2008-05-11Rating2426.51
RoundColorResultOpponent
1WhiteWinJPN Ozawa Tetsushi2047.68
2BlackLossJPN Hata Masayuki2269.25
3WhiteWinJPN Koiso Shigemasa2163.52
4BlackLossJPN Miyagawa Junzo2256.81
5BlackLossJPN Sakamoto Suzan2280.52
3rd Kansai Championship 3rd round
Date2008-01-13Rating2413.58
RoundColorResultOpponent
1WhiteLossJPN Oosumi Yuuki2562.71
2BlackLossJPN Iio Yoshihiro2530.86
3BlackWinJPN Takagawa Teiji2240.59
39th Kyoto Classified - Special Class
Date2007-11-11Rating2409.30
RoundColorResultOpponent
1WhiteDrawJPN Oosumi Yuuki2559.34
2WhiteDrawJPN Sakamoto Suzan2265.16
3BlackWinJPN Miyoshi Takeo2296.37
4BlackLossJPN Hasegawa Kazuto2768.29
5WhiteLossJPN Okumura Toyohiko2323.48
3 Kansai Championship 2nd round
Date2007-10-21Rating2408.76
RoundColorResultOpponent
2BlackWinJPN Takagawa Teiji2250.84
3WhiteLossJPN Oosumi Yuuki2559.22
4BlackWinJPN Miyagawa Junzo2267.34
6dan 7dan Tournament
Date2007-10-08Rating2408.00
RoundColorResultOpponent
1BlackWinJPN Kubo Izumi2081.82
2WhiteLossJPN Sato Kiyotomi2402.12
3BlackWinJPN Nagao Noriaki2248.94
4WhiteDrawJPN Miyagawa Junzo2268.53
5BlackWinJPN Ono Takayuki2376.53
6WhiteWinJPN Gakumazawa Hideaki2181.38
45th Meijinsen Qualification East-Japan area 1st round
Date2007-06-17Rating2396.51
RoundColorResultOpponent
1BlackWinJPN Mitsumori Masao2272.38
2BlackLossJPN Arita Nobuyoshi2367.54
3BlackDrawJPN Kubo Izumi2096.24
4WhiteWinJPN Ono Takayuki2352.61
Meijin-sen Qual, East Japan area 1st round
Date2006-06-18Rating2364.57
RoundColorResultOpponent
1WhiteLossJPN Kamemoto Daichi2206.92
2WhiteWinJPN Ono Takayuki2301.06
3BlackWinJPN Mitsumori Masao2253.42
4BlackLossJPN Sato Kiyotomi2427.22
1st Kansai Championship 2nd round
Date2005-10-16Rating2353.09
RoundColorResultOpponent
2BlackLossJPN Miyagawa Junzo2250.74
3BlackLossJPN Doi Manabu2100.20
4BlackWinJPN Adachi Yasuhiro2045.75
World Championship 2005, BT
Date2005-08-05Rating2360.19
RoundColorResultOpponent
1WhiteDrawTPE Chen Ko-Han2505.47
2WhiteWinEST Oll Aivo2555.68
3BlackWinJPN Miyagawa Junzo2248.53
4BlackLossEST Ilu Timo2579.29
5WhiteLossRRA Potapov Alexey2491.97
6WhiteWinSWE Lind Björn2259.72
7BlackLossRRA Serdyukov Egor2382.40
8WhiteWinJPN Ono Takayuki2290.87
9BlackWinJPN Iio Yoshihiro2466.11
43rd Meijinsen Qualification: Kansai area - 2nd round
Date2005-06-19Rating2355.95
RoundColorResultOpponent
WhiteLossJPN Oosumi Yuuki2375.64
WhiteWinJPN Takashima Junya2493.08
BlackWinJPN Matsui Tsunehiro2163.79
43rd Meijinsen Qualification: Kansai area 1st round
Date2005-05-08Rating2349.99
RoundColorResultOpponent
1WhiteLossJPN Takashima Junya2486.15
2WhiteWinJPN Takagawa Teiji2325.83
3BlackWinJPN Okuda Shingo1959.64
4WhiteWinJPN Iio Yoshihiro2458.60
The 3rd Shanghai Renju Meijin Invitation Tournament
Date2005-05-04Rating2349.03
RoundColorResultOpponent
1BlackDrawCHN Chen Lin2464.84
2WhiteWinCHN Gu Wei2443.00
3WhiteLossCHN Cao Dong2483.40
4WhiteLossCHN Ge Lingfeng2364.53
5WhiteLossCHN Xue Wenxi2395.43
6WhiteWinCHN Tao Junfeng1874.00
7WhiteLossCHN Wu Jie2236.35
Japan WC Qualification tournament
Date2005-04-03Rating2345.09
RoundColorResultOpponent
1WhiteWinJPN Tanizaki Ryusuke2074.48
2WhiteLossJPN Isobe Taizan2463.61
3BlackLossJPN Oosumi Yuuki2370.16
4BlackDrawJPN Mitsumori Masao2256.93
5WhiteWinJPN Miyagawa Sou2128.55
6WhiteLossJPN Yamaguchi Yusui2557.40
Youth World Championship 2004
Date2004-08-06Rating2334.67
RoundColorResultOpponent
A1BlackWinARM Kobzev Victor2018.40
A2BlackLossEST Ilu Timo2531.92
A3BlackLossJPN Okabe Hiroshi2568.17
A4WhiteWinJPN Sano Hiroyuki2154.91
A5BlackLossARM Antanyan Samvel2218.31
A6WhiteWinARM Nersisyan Rafik2162.43
A7BlackWinEST Oll Aivo2467.45
A8WhiteWinARM Mossinyan David2245.01
A9BlackWinEST Purk Andry2439.48
A10BlackLossRRA Vershinin Pavel2594.70
A11BlackWinJPN Miyagawa Sou2117.76
42nd Meijinsen Qualification: Kansai area 1st round
Date2004-05-16Rating2319.24
RoundColorResultOpponent
1BlackLossJPN Koiso Shigemasa2209.06
2WhiteLossJPN Matsui Tsunehiro2170.30
3BlackWinJPN Yasumoto Yoshinobu2014.75
4WhiteWinJPN Iwata Akihisa2192.52
35th Kyoto Classified - group 1
Date2003-11-09Rating2302.20
RoundColorResultOpponent
1WhiteWinJPN Hasegawa Shunzo1734.26
2BlackWinJPN Takashima Junya2353.19
3BlackLossCHN Miao Yuhong2159.81
4WhiteWinJPN Itami Yoshiyuki2154.39
5BlackWinJPN Taguchi Kouta2153.54
6BlackLossJPN Miyagawa Sou2106.98
Asian Cup 2003
Date2003-10-10Rating2300.31
RoundColorResultOpponent
1WhiteLossCHN Hu Xi2263.27
2BlackWinCHN Wang Zhimou1855.52
3BlackDrawCHN Cheng Yongxu1919.95
4BlackWinSWE Jonsson Peter2300.22
5BlackLossCHN Wang Tengfei2051.95
6BlackWinCHN Liu Xiangjun1881.77
7WhiteWinTPE Chang Chao-Yung2204.89
8WhiteLossEST Lents Johann2475.02
9BlackWinTPE Lin Sheng-Min2114.93
World Championship 2003, BT
Date2003-08-08Rating2301.58
RoundColorResultOpponent
1BlackWinSWE Eriksson Marcus2229.14
2BlackDrawCHN Chen Wei2514.11
3BlackLossJPN Mitsumori Masao2291.75
4BlackLossJPN Ishitani Shin-ichi2385.90
5WhiteWinEST Purk Andry2291.14
7WhiteWinAZE Dzainukov Eldar2200.09
8BlackWinEST Ilu Timo2452.78
9BlackWinRRA Karasyov Maxim2490.99
41st Meijinsen Qualification: Kansai area 2nd round
Date2003-06-08Rating2288.77
RoundColorResultOpponent
1BlackLossJPN Miyagawa Junzo2267.22
2BlackDrawJPN Takashima Junya2351.51
3WhiteLossJPN Takehara Kenji1843.70
41st Meijinsen Qualification: Kansai area - 1st Round
Date2003-05-18Rating2287.56
RoundColorResultOpponent
2BlackLossJPN Takagawa Teiji2343.07
3BlackWinJPN Iwata Akihisa2209.06
4BlackWinJPN Adachi Yasuhiro2030.73
Japan WC Qualification 2003
Date2003-03-22Rating2283.30
RoundColorResultOpponent
1WhiteWinJPN Sakamoto Suzan2259.32
2BlackWinJPN Kudomi Takahiro2348.40
3WhiteLossJPN Ishitani Shin-ichi2393.97
4WhiteLossJPN Iio Yoshihiro2462.26
5WhiteLossJPN Yamaguchi Yusui2576.31
36th Touryumon-Sen Tournament
Date2003-03-16Rating2282.66
RoundColorResultOpponent
1WhiteWinJPN Kakiuchi Keisuke1904.34
2WhiteWinJPN Miyagawa Sou2081.04
3BlackWinJPN Onishi Yoshihiro1798.95
4BlackDrawJPN Takashima Junya2346.76
5BlackLossJPN Taguchi Yohei2125.99
6BlackWinJPN Ito Yoshiyuki1945.64
Youth World Championship 2002
Date2002-08-02Rating2260.81
RoundColorResultOpponent
A1BlackLossARM Mossinyan David2252.63
A2WhiteLossRRA Myasoyedov Yevgeni2155.33
A3WhiteLossJPN Nagao Noriaki2304.96
A5WhiteWinEST Purk Andry2165.46
A6WhiteWinRRA Serdyukov Egor2211.95
A7BlackWinRRA Provorov Yury2200.75
A9BlackLossRRA Chingin Konstantin2657.70
A9BlackWinRRA Novikov Nikolay2186.12
A10BlackDrawJPN Okabe Hiroshi2471.95
A11BlackLossRRA Kazarin Mikhail2424.28