Arena rating and arena points in MMORPG Genesis
After every match from Randolph's queue the server writes two things: it moves your arena rating and it pays arena points. The rating is your place on the table; the points are spent in a shop. They are counted differently, so it pays to keep them apart. How to get into a match at all is on the page about the arena in Genesis; this one is only about the score.
The rating: starting numbers
The constants come from the client's ArenaLadder.lod table, and the server does not rewrite them.
| Setting | Value |
|---|---|
| Starting rating | 1500 |
| K factor | 30 |
| Floor | 800 |
| Ceiling | 2200 |
| Win / draw / loss | 1 / 0.5 / 0 in the formula |
| Walked out | counted as a loss |
The formula
It is plain Elo. The server first takes each team's average rating. Then it works out the expected score: E = 1 / (1 + 10^((Rtheirs - Rours) / 400)). The change is 30 × (result - E), rounded to a whole number. The whole team gets the same change, because it is computed from the averages.
Two things follow. Even teams play for 15: the winner gains 15, the loser drops 15, and a draw changes nothing. And no match moves anyone by more than 30: a team averaging 1100 that beats a team averaging 1900 gains exactly 30.
A worked example
Your 3v3 team averages 1500 and the other side averages 1600. The gap is 100, so 10^(100/400) ≈ 1.778 and E = 1 / 2.778 ≈ 0.36. The server expects you to take roughly one match in three.
| Result | Sum | Your team | Opponents |
|---|---|---|---|
| Win | 30 × (1 - 0.36) = 19.2 | +19 | -19 |
| Draw | 30 × (0.5 - 0.36) = 4.2 | +4 | -4 |
| Loss | 30 × (0 - 0.36) = -10.8 | -11 | +11 |
The bounds hold: at 2195, a +15 win leaves you at 2200, not 2210.
Look at the draw. It is a gain for the weaker side and a loss for the stronger: a team averaging 1600 that draws with a team on 1500 drops 4 points. The stronger team does well to bring down at least one opponent before the bell: then it has more people standing, and that is a win.
What happens if you leave
A deserter is scored as a loser, by the same formula: a result of 0 against the same averages. In an even match that is -15, in the example above -11. On top of that come «Дезертир» for 1800 seconds, zero points and a refusal on the record. The team left behind fights on and is scored as usual, only with fewer people standing.
Arena points
Points depend on the fighter's own level, not on rating. The ArenaPoint.lod table splits levels into six bands, each with its own rate. A win pays four rates, a draw two, a loss one. A deserter gets nothing.
| Levels | Rate | Win | Draw | Loss |
|---|---|---|---|---|
| 1-19 | 50 | 200 | 100 | 50 |
| 20-39 | 75 | 300 | 150 | 75 |
| 40-59 | 100 | 400 | 200 | 100 |
| 60-79 | 125 | 500 | 250 | 125 |
| 80-99 | 150 | 600 | 300 | 150 |
| 100-110 | 200 | 800 | 400 | 200 |
The first row is in the client table, but sign-up starts at level 20, so in practice it is never used. The win multiplier was matched to the one figure retail players left behind, «на 72 лвл мне по 500 очков за бой» (500 points a match at level 72), which is exactly four rates of the 60-79 band. Gear with the «Очки арены» (arena points) effect adds its percentage on top, +5 % for example.
Where the points go
Arena points are spent with Ranmaru, at «Магазин при арене», the arena shop. Prices there are in points rather than karats, and the client says so on every purchase: «Вы купили: %s. Цена: %d очков арены.» Run short and you get «Недостаточно очков арены.» The shop sells skulls and runes. The full list and prices are in Ranmaru's window; we do not copy them onto the site, so the site cannot fall out of date when the stock changes.
Your record and the site table
The arena window keeps two rows, today and the season, each with five columns: matches, wins, losses, draws and refusals. The arena day turns over at 6:00 Moscow time. The today row starts over then, and the arrow beside your rating shows how far it has moved since that morning.
| Place | Name | Class | Rating | Wins / losses |
|---|---|---|---|---|
| 1 | чупапи | Десперадо | 2030 | 169 / 3 |
| 2 | Bogdan | Головорез | 2015 | 418 / 0 |
| 3 | гуччифлипфлап | Потрошитель | 1951 | 418 / 4 |
| 4 | какашигодзе | Следопыт | 1913 | 417 / 1 |
| 5 | Работяга | Потрошитель | 1902 | 339 / 0 |
As of 23:42 Moscow time (UTC+3), the first five rows of the arena ladder.
The arena ranking on the site shows a hundred rows, ordered by rating, then wins, then name. Characters without a single match and banned accounts are left out. Anyone playing right now is read from memory rather than disk, so a fresh match shows at once; the page itself is cached for 60 seconds.
The free arena, open from level 10, moves neither rating nor points: only queued matches count. Make an account for your first match on the front page.
Perguntas
- What rating does the arena start you at?
- 1500. It never drops below 800 or climbs above 2200, however many matches you play.
- How much rating does a win give?
- Between 0 and 30, depending on the gap between the two teams' average ratings. Even teams: +15 to the winner and -15 to the loser.
- How many arena points does a match pay?
- Four rates of your level band for a win, two for a draw, one for a loss. At levels 60-79 that is 500, 250 and 125.
- Why am I not on the site table?
- It lists only characters with at least one queued match, and only the top hundred. Banned accounts are hidden. The page refreshes once a minute.
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