The Tuesday Night Marathon | Mechanics' Institute

You are here

Home » Chess » The Tuesday Night Marathon

The Tuesday Night Marathon

The Mechanics' Tuesday Night Marathon (TNM) has a rich tradition that dates back at least 50 years. The idea of playing serious chess one night a week has appealed to a broad range of players from Senior Master to beginners, who find the time commitment fits their schedule quite comfortably. Today we think of seven rounds as the normal duration for a TNM, but that has not always been the case. In 1975 they played 12 rounds per tournament. Recently the Marathon switched to having sudden death for the second time control. It was probably the last tournament in the world to still feature adjourned games, the rest of the chess community having given up the practice years ago due to the rise in playing strength of computers. The Mechanics' Institute still has several hundred adjourned move envelopes, which will no doubt become collector's items.

The TNM provides strong competition for players ranging in strength from Master to beginner. The Marathon is a perfect fit for those who can't commit an entire weekend to chess. No matter what your strength, the Tuesday Night Marathon might be the right tournament for you!

Testimonials

"Thanks as always for putting on such a great tournament. Looking forward to the next one." Joel C.
"Thank you so much for running just another successful event. Chess community really owes you for the energy and efforts you put into making Bay Area a United States' premier chess hub." Felix G.
"I really enjoyed playing the last four weeks. How do I sign up for the next one?" Paul K.

TNM Lectures

3/4
NM Daniel Cremisi
3/11
NM Daniel Cremisi
3/18
NM Daniel Cremisi
3/25
TBA
4/1
TBA
4/8
TBA
4/15
TBA

Current Marathon Standings • Pairings for the Next Round • Flyer and Registration Info

2025 Spring Tuesday Night Marathon

March 4th to April 15th
Register Now
Prize Winners:

 

 
Standings:

 Standings

SwissSys Report: 2025 Spring Tuesday Night Marathon

SwissSys Standings. 2025 Spring Tuesday Night Marathon: 2000+

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Dmytro Dzhanhirov 32073210 2235 W13 W15 W2 W3       4.0
2 Daniel Cremisi 14543654 2388 W18 W9 L1 W7       3.0
3 Jimmy Heiserman 12799690 2303 W8 W10 W14 L1       3.0
4 WFM Natalya Tsodikova 12634942 2169 H--- W11 H--- W14       3.0
5 Hector Viadiu-Ilarraza 12586903 1896 L20 B--- W16 W12       3.0
6 CM Pranav Senthilkumar 14020007 2201 H--- W22 L7 W19       2.5
7 CM Chinguun Bayaraa 14271324 2161 D11 W19 W6 L2       2.5
8 Steven Gaffagan 12542809 1967 L3 W21 W20 D9       2.5
9 Varun Agrawal 30082646 1933 W16 L2 W10 D8       2.5
10 Sudarshan Seshadri 12906250 2018 W21 L3 L9 W20       2.0
11 Kristian Clemens 13901075 1954 D7 L4 W23 D15   H--- H--- 2.0
12 Adam Mercado 16571026 1949 H--- H--- W18 L5       2.0
13 Michael Walder 10345120 1935 L1 L16 W21 W22       2.0
14 Anthony Vladimir Ivanenko 30902660 1901 W17 W20 L3 L4       2.0
15 Phineas F Horowitz 14209057 1883 B--- L1 H--- D11       2.0
16 Sivavishnu Srinivasan 16778004 2066 L9 W13 L5 D18       1.5
17 Kyle Chan 30063365 2042 L14 H--- H--- H---       1.5
18 Reyansh Paragiri 30233070 1978 L2 W23 L12 D16       1.5
19 Kar Lun Cheng 30599116 1867 H--- L7 W22 L6       1.5
20 IM Elliott Winslow 10363365 2222 W5 L14 L8 L10       1.0
21 Raghu Rajaram 12698822 1812 L10 L8 L13 W23       1.0
22 ANDREW ZAVGORODNIY 32143889 1969 D23 L6 L19 L13       0.5
23 Roger Christopher Smith 14437543 1872 D22 L18 L11 L21       0.5

SwissSys Standings. 2025 Spring Tuesday Night Marathon: 1600-1999

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Jeremy David Cawthon 15038608 1970 W14 W5 W13 W6       4.0
2 Hayes Alexander Marvin 30636603 1926 D12 D10 W15 W13       3.0
3 Frederic Dutter 12343420 1900 D16 W20 D7 W14       3.0
4 Stephen Parsons 16566932 1876 L6 W16 W23 W11       3.0
5 Sreyshthaa Krishnan 30452740 1579 W27 L1 W9 X10       3.0
6 Immanuel Huang 31924932 1554 W4 W22 W11 L1       3.0
7 Phil Ploquin 12535882 1665 H--- W21 D3 H---       2.5
8 Christopher Powers 30462548 1818 L13 H--- D18 X25       2.0
9 Gagik Babayan 15695454 1711 L17 W24 L5 W20       2.0
10 Nicholas Morello 31114079 1655 H--- D2 W17 F5 H---     2.0
11 Rayna Yan 30157975 1642 W26 W17 L6 L4       2.0
12 Carl Anthony Pickering 30689170 1634 D2 H--- H--- H---       2.0
13 Isaac S Mays-Smith 30338290 1619 W8 W18 L1 L2       2.0
14 John Boyer 16865157 1598 L1 W27 X22 L3       2.0
15 Michael David Abraham 12776147 1558 H--- W19 L2 D16       2.0
16 John Chan 12561007 1520 D3 L4 W19 D15       2.0
17 Charlie Schaezlein 31629140 1473 W9 L11 L10 W23       2.0
18 Sawyer Stults 31608516 1424 W24 L13 D8 H---       2.0
19 Stephen Touset 14197801 1600 H--- L15 L16 W24       1.5
20 Nicolas T Horde 30573134 1568 H--- L3 W21 L9 H---     1.5
21 David Siegel 12595160 1446 H--- L7 L20 X27       1.5
22 Richard V Finacom 11452728 1884 W23 L6 F14 U---       1.0
23 Nick, Jr Casares 10424364 1600 L22 W26 L4 L17       1.0
24 Hoa Long Tam 16919862 1589 L18 L9 W27 L19       1.0
25 Owen Michael Lopez-Oneal 31909069 618 U--- U--- W26 F8       1.0
26 Clarence Harris 12543396 1400 L11 L23 L25 H---       0.5
27 Yonathan Admassu 15323127 1721 L5 L14 L24 F21       0.0

SwissSys Standings. 2025 Spring Tuesday Night Marathon: Under1600

# Name ID Rating Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Joseph Karwat 16761266 1315 W15 W3 W4 W7       4.0
2 Yinpok R Lee 32231030 935 H--- W13 W14 W9       3.5
3 Bilguun Bayaraa 15191886 1503 W26 L1 W10 W12       3.0
4 Romeo Belmes Barreyro 17018168 1500 W25 W6 L1 W17       3.0
5 Dahlia Quinn 30654447 1317 W17 W19 D12 H--- H---   H--- 3.0
6 Brandon Zhao 30108201 1280 W29 L4 W28 W18       3.0
7 Brett Fisher 31540384 1376 W28 W22 D9 L1 H--- H---   2.5
8 William Fitzgerald 17048414 1311 L14 D24 W27 W15       2.5
9 Zachary Wickliffe 32140128 1260 W30 W11 D7 L2       2.5
10 Bowie Chen 32358809 unr. H--- W27 L3 W21       2.5
11 Richard Hack 12796129 1500 W23 L9 H--- H---       2.0
12 Thu Anh Le 17248797 1204 H--- W16 D5 L3       2.0
13 Robert Turner 12407483 1200 H--- L2 H--- W24     H--- 2.0
14 Andrew Braithwaite 31237898 1126 W8 H--- L2 H---   H---   2.0
15 Alexander Kojevnikov 31856555 1045 L1 W29 W19 L8       2.0
16 Andrew Singer 30803745 1044 H--- L12 H--- W29       2.0
17 Douglas Alan Burkhardt 31265165 739 L5 W26 W22 L4       2.0
18 Sacha Marino Sloan 32301287 660 L22 W23 W25 L6   H---   2.0
19 Andrew Marsh 32324470 unr. B--- L5 L15 W28       2.0
20 Samuel Agdamag 14874734 1481 H--- W21 U--- U--- U--- U--- U--- 1.5
21 David R Olson 13913131 1400 W24 L20 H--- L10       1.5
22 Dominic A Vazquez 30703139 1206 W18 L7 L17 H--- H---     1.5
23 Daniel Smith 31779836 1126 L11 L18 W26 H---       1.5
24 Paul Blum 12748433 1016 L21 D8 W30 L13       1.5
25 Felix Elias Merk 16761910 1304 L4 H--- L18 D27       1.0
26 Steven Lee Myers 30700928 1196 L3 L17 L23 W30 H---     1.0
27 Danny Du Uy Cao 16939797 1174 H--- L10 L8 D25       1.0
28 John Pirone 30758788 1026 L7 W30 L6 L19     H--- 1.0
29 Owen Michael Lopez-Oneal 31909069 618 L6 L15 B--- L16       1.0
30 Albert Martin Starr 12844781 1518 L9 L28 L24 L26       0.0
31 Steven Alan Dunlap 14905812 913 U--- U--- U--- U---   U--- U--- 0.0

SwissSys Standings. 2025 Spring Tuesday Night Marathon: Extra Games

# Name ID Rating Rd 1 Rd 2 Total
1 Phineas F Horowitz 14209057 1883 D3 U--- 0.5
2 Christopher Powers 30462548 1818 U--- D4 0.5
3 Thejas Prasad 12890181 1692 D1 U--- 0.5
4 Sreyshthaa Krishnan 30452740 1579 U--- D2 0.5

 

 

SwissSys Report: 2025 Spring Tuesday Night Marathon

SwissSys Wall Chart. 2025 Spring Tuesday Night Marathon: 2000+ (standings)

# Name/Rating/ID Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Dmytro Dzhanhirov B 13 W 15 W 2 B 3        
  2235 32073210 (2249) (14117959) 1.0 2.0 3.0 4.0       4.0
2 Daniel Cremisi B 18 W 9 B 1 W 7        
  2388 14543654 (2222) (2089882) 1.0 2.0 2.0 3.0       3.0
3 Jimmy Heiserman W 8 B 10 W 14 W 1        
  2303 12799690 (2176) (2027828) 1.0 2.0 3.0 3.0       3.0
4 WFM Natalya Tsodikova bye W 11 bye B 14        
  2169 12634942 (2097) (2011913) 0.5 1.5 2.0 3.0       3.0
5 Hector Viadiu-Ilarraza B 20 bye W 16 B 12        
  1896 12586903 (1826) (39905020) 0.0 1.0 2.0 3.0       3.0
6 CM Pranav Senthilkumar bye W 22 B 7 W 19        
  2201 14020007 (2041) (2083477) 0.5 1.5 1.5 2.5       2.5
7 CM Chinguun Bayaraa B 11 W 19 W 6 B 2        
  2161 14271324 (2140) (2076608) 0.5 1.5 2.5 2.5       2.5
8 Steven Gaffagan B 3 W 21 B 20 W 9        
  1967 12542809 (1871) (2020017) 0.0 1.0 2.0 2.5       2.5
9 Varun Agrawal W 16 B 2 W 10 B 8        
  1933 30082646 (1689) (46631437) 1.0 1.0 2.0 2.5       2.5
10 Sudarshan Seshadri B 21 W 3 B 9 W 20        
  2018 12906250 (1884) (2082250) 1.0 1.0 1.0 2.0       2.0
11 Kristian Clemens W 7 B 4 W 23 B 15   bye bye  
  1954 13901075 (1847) (30917344) 0.5 0.5 1.5 2.0       2.0
12 Adam Mercado bye bye B 18 W 5        
  1949 16571026 (1831) (30950180) 0.5 1.0 2.0 2.0       2.0
13 Michael Walder W 1 B 16 W 21 B 22        
  1935 10345120 (1882) (30912962) 0.0 0.0 1.0 2.0       2.0
14 Anthony Vladimir Ivanenko B 17 W 20 B 3 W 4        
  1901 30902660 (1813) (39914780) 1.0 2.0 2.0 2.0       2.0
15 Phineas F Horowitz bye B 1 bye W 11        
  1883 14209057 (1838) (39950107) 1.0 1.0 1.5 2.0       2.0
16 Sivavishnu Srinivasan B 9 W 13 B 5 W 18        
  2066 16778004 (2018) (39902242) 0.0 1.0 1.0 1.5       1.5
17 Kyle Chan W 14 bye bye bye        
  2042 30063365 (1865) (39905497) 0.0 0.5 1.0 1.5       1.5
18 Reyansh Paragiri W 2 B 23 W 12 B 16        
  1978 30233070 (1817) (30997704) 0.0 1.0 1.0 1.5       1.5
19 Kar Lun Cheng bye B 7 W 22 B 6        
  1867 30599116 (1660) (39944204) 0.5 0.5 1.5 1.5       1.5
20 IM Elliott Winslow W 5 B 14 W 8 B 10        
  2222 10363365 (2039) (2002523) 1.0 1.0 1.0 1.0       1.0
21 Raghu Rajaram W 10 B 8 B 13 W 23        
  1812 12698822 (1736) (2047608) 0.0 0.0 0.0 1.0       1.0
22 ANDREW ZAVGORODNIY W 23 B 6 B 19 W 13        
  1969 32143889 0.5 0.5 0.5 0.5       0.5
23 Roger Christopher Smith B 22 W 18 B 11 B 21        
  1872 14437543 (1871) (30901472) 0.5 0.5 0.5 0.5       0.5

SwissSys Wall Chart. 2025 Spring Tuesday Night Marathon: 1600-1999 (standings)

# Name/Rating/ID Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Jeremy David Cawthon W 14 B 5 W 13 B 6        
  1970 15038608 (1825) (30970024) 1.0 2.0 3.0 4.0       4.0
2 Hayes Alexander Marvin B 12 W 10 W 15 B 13        
  1926 30636603 (1843) (39907350) 0.5 1.0 2.0 3.0       3.0
3 Frederic Dutter W 16 B 20 W 7 B 14        
  1900 12343420 (1734) (2091046) 0.5 1.5 2.0 3.0       3.0
4 Stephen Parsons B 6 B 16 W 23 W 11        
  1876 16566932 (1824) (30968674) 0.0 1.0 2.0 3.0       3.0
5 Sreyshthaa Krishnan B 27 W 1 W 9 - 10        
  1579 30452740 (1622) (39944220) 1.0 1.0 2.0 X3.0       3.0
6 Immanuel Huang W 4 W 22 B 11 W 1        
  1554 31924932 (unr.) (2618168) 1.0 2.0 3.0 3.0       3.0
7 Phil Ploquin bye W 21 B 3 bye        
  1665 12535882 (1649) (2052849) 0.5 1.5 2.0 2.5       2.5
8 Christopher Powers B 13 bye W 18 - 25        
  1818 30462548 (1815) (30998905) 0.0 0.5 1.0 X2.0       2.0
9 Gagik Babayan B 17 W 24 B 5 W 20        
  1711 15695454 (1748) (30924910) 0.0 1.0 1.0 2.0       2.0
10 Nicholas Morello bye B 2 W 17 - 5 bye      
  1655 31114079 (1739) (39921549) 0.5 1.0 2.0 F2.0       2.0
11 Rayna Yan W 26 B 17 W 6 B 4        
  1642 30157975 (1650) (30983258) 1.0 2.0 2.0 2.0       2.0
12 Carl Anthony Pickering W 2 bye bye bye        
  1634 30689170 (1700) (421731) 0.5 1.0 1.5 2.0       2.0
13 Isaac S Mays-Smith W 8 B 18 B 1 W 2        
  1619 30338290 (1936) (39965090) 1.0 2.0 2.0 2.0       2.0
14 John Boyer B 1 W 27 - 22 W 3        
  1598 16865157 (1753) (30958385) 0.0 1.0 X2.0 2.0       2.0
15 Michael David Abraham bye W 19 B 2 B 16        
  1558 12776147 (1754) (30928265) 0.5 1.5 1.5 2.0       2.0
16 John Chan B 3 W 4 B 19 W 15        
  1520 12561007 (1605) (2009765) 0.5 0.5 1.5 2.0       2.0
17 Charlie Schaezlein W 9 W 11 B 10 B 23        
  1473 31629140 (1796) (39946690) 1.0 1.0 1.0 2.0       2.0
18 Sawyer Stults W 24 W 13 B 8 bye        
  1424 31608516 (1736) (39946673) 1.0 1.0 1.5 2.0       2.0
19 Stephen Touset bye B 15 W 16 B 24        
  1600 14197801 (1772) (2093600) 0.5 0.5 0.5 1.5       1.5
20 Nicolas T Horde bye W 3 B 21 B 9 bye      
  1568 30573134 (1636) (30998972) 0.5 0.5 1.5 1.5       1.5
21 David Siegel bye B 7 W 20 - 27        
  1446 12595160 (1764) (39957888) 0.5 0.5 0.5 X1.5       1.5
22 Richard V Finacom W 23 B 6 - 14 ---- ---- ---- ----  
  1884 11452728 (1811) (39965082) 1.0 1.0 F1.0 U1.0       1.0
23 Nick, Jr Casares B 22 W 26 B 4 W 17        
  1600 10424364 (1533) (30901995) 0.0 1.0 1.0 1.0       1.0
24 Hoa Long Tam B 18 B 9 W 27 W 19        
  1589 16919862 (1685) (30989779) 0.0 0.0 1.0 1.0       1.0
25 Owen Michael Lopez-Oneal ---- ---- B 26 - 8 ---- ---- ----  
  618 31909069 (unr.) (39957926) U0.0 U0.0 1.0 F1.0       1.0
26 Clarence Harris B 11 B 23 W 25 bye        
  1400 12543396 (1550) (2079070) 0.0 0.0 0.0 0.5       0.5
27 Yonathan Admassu W 5 B 14 B 24 - 21 ---- ---- ----  
  1721 15323127 (1754) (30948444) 0.0 0.0 0.0 F0.0       0.0

SwissSys Wall Chart. 2025 Spring Tuesday Night Marathon: Under1600 (standings)

# Name/Rating/ID Rd 1 Rd 2 Rd 3 Rd 4 Rd 5 Rd 6 Rd 7 Total
1 Joseph Karwat B 15 W 3 B 4 W 7        
  1315 16761266 (1678) (39918394) 1.0 2.0 3.0 4.0       4.0
2 Yinpok R Lee bye W 13 W 14 B 9        
  935 32231030 0.5 1.5 2.5 3.5       3.5
3 Bilguun Bayaraa W 26 B 1 W 10 B 12        
  1503 15191886 (1773) (30913039) 1.0 1.0 2.0 3.0       3.0
4 Romeo Belmes Barreyro W 25 B 6 W 1 B 17        
  1500 17018168 (1756) (30963435) 1.0 2.0 2.0 3.0       3.0
5 Dahlia Quinn W 17 B 19 W 12 bye bye   bye  
  1317 30654447 (1711) (39952045) 1.0 2.0 2.5 3.0       3.0
6 Brandon Zhao W 29 W 4 B 28 B 18        
  1280 30108201 (unr.) (39911268) 1.0 1.0 2.0 3.0       3.0
7 Brett Fisher W 28 B 22 W 9 B 1 bye bye    
  1376 31540384 (1585) (39941051) 1.0 2.0 2.5 2.5       2.5
8 William Fitzgerald B 14 W 24 B 27 W 15        
  1311 17048414 (1585) (39903940) 0.0 0.5 1.5 2.5       2.5
9 Zachary Wickliffe W 30 W 11 B 7 W 2        
  1260 32140128 (unr.) (39969649) 1.0 2.0 2.5 2.5       2.5
10 Bowie Chen bye W 27 B 3 W 21        
  unr. 32358809 (unr.) (16305825) 0.5 1.5 1.5 2.5       2.5
11 Richard Hack W 23 B 9 bye bye        
  1500 12796129 (1622) (2020971) 1.0 1.0 1.5 2.0       2.0
12 Thu Anh Le bye W 16 B 5 W 3        
  1204 17248797 (1564) (30972396) 0.5 1.5 2.0 2.0       2.0
13 Robert Turner bye B 2 bye W 24     bye  
  1200 12407483 (1607) (30995930) 0.5 0.5 1.0 2.0       2.0
14 Andrew Braithwaite W 8 bye B 2 bye   bye    
  1126 31237898 (1634) (39928497) 1.0 1.5 1.5 2.0       2.0
15 Alexander Kojevnikov W 1 B 29 W 19 B 8        
  1045 31856555 (1509) (39967646) 0.0 1.0 2.0 2.0       2.0
16 Andrew Singer bye B 12 bye W 29        
  1044 30803745 (1541) (39909310) 0.5 0.5 1.0 2.0       2.0
17 Douglas Alan Burkhardt B 5 B 26 W 22 W 4        
  739 31265165 (1424) (39928462) 0.0 1.0 2.0 2.0       2.0
18 Sacha Marino Sloan W 22 B 23 B 25 W 6   bye    
  660 32301287 (unr.) (39976793) 0.0 1.0 2.0 2.0       2.0
19 Andrew Marsh bye W 5 B 15 B 28        
  unr. 32324470 1.0 1.0 1.0 2.0       2.0
20 Samuel Agdamag bye B 21 ---- ---- ---- ---- ----  
  1481 14874734 (1606) (2083396) 0.5 1.5 U1.5 U1.5       1.5
21 David R Olson B 24 W 20 bye B 10        
  1400 13913131 (1447) (2054850) 1.0 1.0 1.5 1.5       1.5
22 Dominic A Vazquez B 18 W 7 B 17 bye bye      
  1206 30703139 (1583) (39920372) 1.0 1.0 1.0 1.5       1.5
23 Daniel Smith B 11 W 18 W 26 bye        
  1126 31779836 (1682) (39950131) 0.0 0.0 1.0 1.5       1.5
24 Paul Blum W 21 B 8 W 30 B 13        
  1016 12748433 (1533) (2057441) 0.0 0.5 1.5 1.5       1.5
25 Felix Elias Merk B 4 bye W 18 B 27        
  1304 16761910 (unr.) (523704) 0.0 0.5 0.5 1.0       1.0
26 Steven Lee Myers B 3 W 17 B 23 B 30 bye      
  1196 30700928 (1601) (39907325) 0.0 0.0 0.0 1.0       1.0
27 Danny Du Uy Cao bye B 10 W 8 W 25        
  1174 16939797 (1500) (30964938) 0.5 0.5 0.5 1.0       1.0
28 John Pirone B 7 B 30 W 6 W 19     bye  
  1026 30758788 (1517) (39914666) 0.0 1.0 1.0 1.0       1.0
29 Owen Michael Lopez-Oneal B 6 W 15 bye B 16        
  618 31909069 (unr.) (39957926) 0.0 0.0 1.0 1.0       1.0
30 Albert Martin Starr B 9 W 28 B 24 W 26        
  1518 12844781 (1640) (2010550) 0.0 0.0 0.0 0.0       0.0
31 Steven Alan Dunlap ---- ---- ---- ----   ---- ----  
  913 14905812 (unr.) (30958334) U0.0 U0.0 U0.0 U0.0       0.0

SwissSys Wall Chart. 2025 Spring Tuesday Night Marathon: Extra Games (standings)

# Name/Rating/ID Rd 1 Rd 2 Total
1 Phineas F Horowitz B 3 ----  
  1883 14209057 (1838) (39950107) 0.5 U0.5 0.5
2 Christopher Powers ---- W 4  
  1818 30462548 (1815) (30998905) U0.0 0.5 0.5
3 Thejas Prasad W 1 ----  
  1692 12890181 (1753) (2061120) 0.5 U0.5 0.5
4 Sreyshthaa Krishnan ---- B 2  
  1579 30452740 (1622) (39944220) U0.0 0.5 0.5
Pairings:

Pairings. 

SwissSys Report: 2025 Spring Tuesday Night Marathon

SwissSys Report: 2025 Spring Tuesday Night Marathon

SwissSys Report: 2025 Spring Tuesday Night Marathon

SwissSys Report: 2025 Spring Tuesday Night Marathon

Pairings for Round 2. 2025 Spring Tuesday Night Marathon: Extra Games

Bd Res White Res Black
1 ½ Christopher Powers (1818 - 0.0) ½ Sreyshthaa Krishnan (1579 - 0.0)