TDC - Archive

[ericdoman1]

Thanks very much R

[Morat]

Great fun - thanks for organising!

M.

[Karvon]

Final tables updated to reflect a switched score.

Karvon

[wellsonian]

Well done running this tourney. Thanks much

[anderarcos11]

Final tables updated to reflect a switched score.

Karvon

Thanks!

[ZeCid]

in my column i am counted as looser against Badger, but i won (which is well counted in my line)
(i get 5 wins 4 loose)

[angusosborne]

in my column i am counted as looser against Badger, but i won (which is well counted in my line)
(i get 5 wins 4 loose)

It looks like the table records a win for you. The row by your name shows five wins and four losses, and you score 75 to Badger's 45

[Karvon]

in my column i am counted as looser against Badger, but i won (which is well counted in my line)
(i get 5 wins 4 loose)

It looks like the table records a win for you. The row by your name shows five wins and four losses, and you score 75 to Badger's 45

As Angus kindly pointed out, you were correctly credited for the win in the matrix tables and the div tables show you as 5 wins and 4 losses - which is calculated automatically by the spreadsheet from the game logs.

I have occasionally found errors in the division logs, but that usually has traced back to an odd game log error in correctly assigning the winner/loser and I've had to manually insert the correct ones into the game log.

Regards,

Karvon

[anderarcos11]

Apologies for the delay in posting the final tables. There were a couple of adjudications needed and I was away for a few days this week.

Thanks, but i think that my points are wrong. According to my calculations

phlewis
45
Badger73
14
Morat
6
Afromullet
86
IMC
52
ulysisgrunt
73
mh5064
95
Fluidwill
94
dragmio
80

Total is 545, not 529.

[Jtrillodmp]

Division B

Jtrillodmp (Castilian) 1476-1492 AD) defeats Vadim 84 (German City N & W 1488-1500 AD with Low Countries Allies 1488 - 1500 AD) 57-30

Castilians morale wasnt very high after being defeated several times by armies with Keil units but this time and with a mostly plain terrain they formed a different army, much composed by heavy cavalry, that managed to stop the damned swisss while the rest of their army broke the enemy infantry. Castilians blood in previous battles wasnt wasted and the hard lessons were learned.

Thanks to my honourable enemy for a great (but late) match.

Thanks to the organization of this tournament too.

[carpenkm]

Apologies for the delay in posting the final tables. There were a couple of adjudications needed and I was away for a few days this week.

Thanks, but i think that my points are wrong. According to my calculations

phlewis
45
Badger73
14
Morat
6
Afromullet
86
IMC
52
ulysisgrunt
73
mh5064
95
Fluidwill
94
dragmio
80

Total is 545, not 529.

You are correct. I recorded your draw vs IMC the other way around as that was how it read in your amended post. I can see now on re-reading the discussion that you had the lower % loss. I've corrected it in the main record sheet, but it doesnt change the final positions _IMC's final score is 561.
Thanks for checking - inevitably there are mistakes (hopefully minor!)

[anderarcos11]

Apologies for the delay in posting the final tables. There were a couple of adjudications needed and I was away for a few days this week.

Thanks, but i think that my points are wrong. According to my calculations

phlewis
45
Badger73
14
Morat
6
Afromullet
86
IMC
52
ulysisgrunt
73
mh5064
95
Fluidwill
94
dragmio
80

Total is 545, not 529.

You are correct. I recorded your draw vs IMC the other way around as that was how it read in your amended post. I can see now on re-reading the discussion that you had the lower % loss. I've corrected it in the main record sheet, but it doesnt change the final positions _IMC's final score is 561.
Thanks for checking - inevitably there are mistakes (hopefully minor!)

No problem. Thank you for the work in this division!

[Morat]

anderarcos11

Thanks for running this section: it's been lots of fun. And thanks to all my opponents in div C.

Rgds

M.

[carpenkm]

Recruitment will start shortly for TDC III. We expect the divisions to start shortly after the New Year, provisionally 7 January

To whet your whistle the tables following are the ranking scores based on our assessment of previous rating and adjustments made for the last TDC II league results.

Column 1 – ranking
Column 2- Username
Column 3 – Your rating at the start of TDC II
Column 4 – Periods Played in TDC II
Column 5 - Your new overall Ranking
Column 5 – your ranking
Column 7 – your ranking change as a result of TDC II
Column 8/9 – your East Medieval change and ranking
Column 10/11 - your West Medieval change and ranking
Column 12/13 - your Dark Ages change and ranking
Column 14/15 - your Imperial change and ranking
Column 16/17 - your Classical change and ranking

We will use your rating for the period you played in or the overall rating if no period rating to place you in a division with similarly rated players. As we will be using ratings, there is no automatic promotion or relegation (some of us breathe a sigh of relief).

So Tyronec keeps his top spot, with Ericdoman1, Dreddradish and Taibai all improving their ranking in the top 5. Some of us may want to forget about this season and focus on the future.

The range at the moment for 65 players (150 period entries) is -404.89 (worst) to 458.41 (best)
The number of players with +ve scores is 34 and average is +145.86
The number of players with -ve scores is 31 and average is -159.97

Top 10 biggest increases in overall ELO & Biggest improvers in overall ranking below

[carpenkm]

Those table - split into batches of 25

[carpenkm]

What the hell is an ELO rating and why do I care? NB - you dont need to read this to play and enjoy the TDC (just saying!)

The Elo rating system is a method for comparing the relative skill levels of players and adjusting their rating based on the results. It’s named after an Hungarian- American physics professor (according to Wikipedia). Basically there are 50 points at stake for each match. Two equal players would be adjust 25 points each (the winner 25 points up and the loser 25 points down). If you beat a higher rated player you gain more and if you beat a lower rated player you gain less (and they lose less) - I'd stop reading now if I were you!

We will use the ratings to put payers in Divisions with similarly rated players hoping for competitive and enjoyable matches for all. There’s a more complicated explanation below for those that are interested. If you want to know more then that’s what Google was invented for!

ELO Scoring (TDC)

The ELO system uses a sport inspired (football/soccer) ranking and calculating system.
Every TDC tournament match will result in an ELO adjustment for the two players in that match – this will apply whatever the result or adjudication of that match.

The net change for all the matches in the tournament will be applied at the end of the tournament and new ELO scores will then apply for the following tournament. ELO scores cannot be adjusted in tournament for reasons of timeliness of result reporting.

ELO scoring functions by generating a positive/negative adjustment for the players in every match in these four ways.

1) A factorial increase generating a positive value to add to the ELO score for a victory for the winning player of the match

2) An equivalent factorial decrease generating an equal and opposite negative value to deduct from the ELO score for the defeated player in the match

3) The value for increase or decrease in player’s ELO scores has a further mathematic moderation applied. This is proportional to the difference in the starting ELO scores of the two players. For the player with the higher ELO score this is negative; For the player with the lower ELO score it is an equal and opposite positive value. This moderation also applies in the event of a draw/adjudication

4) The value of the increase and decrease in the opposing player’s ELO scores has a final mathematic moderation applied which is proportional to the difference in damage caused. This value is calculated from the difference in player’s losses at the end of the match. It is always an equal and opposite moderation and is smaller with a narrow difference becoming larger with increasing difference. This moderation also applies in the event of a draw/adjudication

Points 1 and 2 mean a win scores a base, positive, ELO point value change for the winner. A loss scores an equal negative value for the defeated player. In a draw or unfinished game no difference would result from calculations 1 and 2 but in such games adjustments 3 and 4 will still apply.
Point 3 means that in each match the base score from points 1 and 2 is mathematically reduced where a player has a higher starting ELO score than his opponent. An equal and opposite positive mathematic adjustment is applied for the opponent with the lower starting ELO score. This adjustment applies in draws so a high ELO score player will take a negative adjustment for drawing with a lower ELO score player which could only be mitigated by the final adjustment below.
Point 4 means that where a player has inflicted less damage on his opponent he will receive a further negative adjustment and the player inflicting more damage will receive an additional positive adjustment. This becomes also applies in draws e,g, a game timed out at 24 turns as a draw but with score such as 29-53 would see a positive adjustment in favour of the player inflicting the 53% loss and an equal and opposite negative adjustment for the player inflicting the lower 29% loss.


The equal and opposite scoring in any given match has the important result that there is no net change to the total ELO points (sum of all ELO scores for all players) but the results give a redistribution of the existing ELO points and individual’s scores and so relative positions change.

The only way in which the total ELO points (sum of ELO scores for all players) will increase is where a new player is added. At this time a totally new player will be given an arbitrary ELO score of 1000.

At the conclusion of any tournament players will hold an overall ELO score and ‘contributory’ scores for each of the TDC periods in which they have participated. Each player’s scores will reflect their performance in each period and overall. The overall score is not averaged but reflects the net ELO changes, for that player, for all matches in which they participated. These are separated by the relevant period (sub-set) and aggregated as a cumulative overall score not an average. It is entirely possible in one tournament for a player to plummet in one period’s relative ELO scores while rising meteorically in a different period.

At the start of a TDC tournament divisions will be set up and ranked according to the participating player’s current ELO score in that period or overall score if the period is new to either the player or the tournament.

[ericdoman1]

Brill Keith. Yep only just spotted it.

[Karvon]

Greetings Generals,

Recruitment has opened for TDC III. We expect the games to start shortly after the New Year,
provisionally January 7th. We plan on the standard 10 player division, so you will have 9 games to complete over the 12 week season ending on April 1st.

We will use your rating for the period you played in, or the overall rating if no period rating, to plac you in a division with similarly rated players. As we will be using ratings, there is no automatic promotion or relegation (some of us breathe a sigh of relief).

You can find the current ELO rating tables
https://www.slitherine.com/forum/viewtopic.php?t=110717

You can find the current TDC rules
https://www.slitherine.com/forum/viewtopic.php?t=107984

For season 3 we will offer the following sections (coordinators)

1 Classical 700 BC – 25 BC (wzfcns)
https://www.slitherine.com/forum/viewtopic.php?t=108002

2 Imperial 25 BC – 600 AD (Rosedelio)
https://www.slitherine.com/forum/viewtopic.php?t=109453

3 Dark Ages 600 AD – 1000 AD (carpenkm)
https://www.slitherine.com/forum/viewtopic.php?t=109451

4 Early Medieval 1038 AD – 1319 AD (Karvon)
https://www.slitherine.com/forum/viewtopic.php?t=109440

5 Late Medieval 1320 AD – 1500 AD (harveylh)
https://www.slitherine.com/forum/viewtopic.php?t=109439


If you have any questions, please feel free to post in the forums or contact one of the coordinators.

Hope you will join us on the fields of glory!

Regards,

Karvon

[ericdoman1]

I am in.

1. Indo Skythian with Indian Allies
2. Achaemenid Persian 545 - 481 BC with Skythian Allies
3. Kushan

[Karvon]

I'm in as well, armies TBD.

Karvon