Jason Chambers
18–5 · 25 recorded bouts · 1998–2008
18–5
Jason Chambers finished 83% of 18 wins inside the distance — the 76th percentile for welterweight MMA, where the median is 73%. No reach is on record, so this page compares record rather than measurements.
SOURCE·Jason Chambers — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-18
How this record is compiled
- Measurements come from the fighter's English Wikipedia infobox; the bout list is parsed from the results table on the same article, read on 2026-07-18. Boxing tables are read by header name and MMA records by the fixed column order of the
MMA recordtemplate — two different parsers, because reading MMA rows as a boxing table returns a fighter's boxing record in place of their real one. - A bout enters the ledger with whatever fields the source states: result, opponent, method, round, year. Any field the source leaves empty stays empty here. A date that cannot be established is left blank rather than inferred, and the bout is still counted.
- A no contest is counted and printed as a no contest. It is never folded into the wins, the losses or the draws, and it never disappears to make a total balance.
- Where the article's infobox total disagrees with its own results table, both figures are published and each is labelled with where it came from. Nothing is averaged and nothing is reconciled against a second database.
- Percentiles rank this fighter among the 299 welterweight MMA fighters in the dataset — the most specific group of at least 30 that this fighter belongs to.
Bout record
Every bout the article's own results table lists, in order. A dash is a field the source leaves empty — it is not a zero and it is not a guess.
| Year | Result | Opponent | Method | Rd |
|---|---|---|---|---|
| 2008 | W | Dan New | Submission | 1 |
| 2008 | W | Rene Gonzalez | Decision | — |
| 2007 | L | Tristan Yunker | Submission | 1 |
| 2006 | L | Jimmy Smith | Submission | 1 |
| 2006 | L | Michihiro Omigawa | Decision | 3 |
| 2005 | D | Kosuke Umeda | Draw | 2 |
| 2005 | W | Billy Stamp | Submission | 1 |
| 2004 | L | Thiago Alves | Submission | 1 |
| 2004 | W | Emmett Olvera | Submission | 1 |
| 2004 | W | Adrian Serrano | Submission | 1 |
| 2004 | W | Mark Long | KO/TKO | 1 |
| 2003 | W | Josh Kruger | Submission | 1 |
| 2002 | W | Erick Snyder | Submission | 1 |
| 2002 | W | Justin Hynes | Submission | — |
| 2000 | W | Jack Jones | Submission | 1 |
| 2000 | W | Corey Talbert | Submission | 1 |
| 1999 | L | Dan Spychalski | Submission | 1 |
| 1999 | W | Efrain Saladar | KO/TKO | 2 |
| 1999 | W | Mike Court | Decision | — |
| 1999 | D | Bill Peach | Draw | — |
| 1999 | W | Ken Davis | KO/TKO | — |
| 1999 | W | Alex Evan | Submission | 1 |
| 1998 | W | Tony Velasquez | KO/TKO | 1 |
| 1998 | W | Nicolas Smith | Decision | — |
| 1998 | W | Jose Gomez | KO/TKO | 1 |
2 of these opponents have their own page here.
SOURCE·Jason Chambers — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-18
What is on record
| Reach | not recorded | |
|---|---|---|
| Height | 72″ (182.9 cm) | |
| Stance | — | |
| Division | Welterweight MMA | |
| Most active decade | 2000s — 16 of 25 dated bouts | |
| Country | United States |
Wikipedia carries no reach figure for Jason Chambers, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.
Record
MMA record
18–5
25 bouts on record
Finish rate
83%
of wins ended inside the distance — welterweight MMA median 73%, 76th percentile
The career, bout by bout
25 recorded bouts from 1998 to 2008. Every incumbent shows this as a table you have to read; here it is as a shape you can see.
Career span
11y
1998–2008
Longest unbeaten run
9
without a loss — draws do not break it
Busiest year
1999
6 bouts
Recorded bouts
25
25 with a date
What this record does and does not say
- What is Jason Chambers's record?
- 18–5 in MMA. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 25 bouts individually.
- Does a no contest change a record here?
- No. A no contest is not a win, a loss or a draw, and it is never folded into one. It is counted and printed separately, so a 20–0 record with two no contests is shown as exactly that rather than as 22–0 or as 20–0 with the no contests dropped. The same applies to a bout overturned after the fact where the source records the change.
- What happens when sources disagree about a fight?
- This site publishes one source — the fighter's English Wikipedia article, read on the date printed under every table — and it does not silently reconcile that against anyone else's database. Where the article's own infobox total and its own results table disagree, both are shown and the page says which one each figure came from. Nothing is averaged, and no field is filled in from a second source to make a total balance.
Where this record leads
The 302 welterweight MMA fighters this record is ranked against, and the distribution Chambers sits inside.
302 FIGHTERS 2000s MMA16 of these bouts fall in the 2000s. This is what the rest of that decade's records look like.
541 FIGHTERS Longest unbeaten runsJason Chambers went 9 without a loss. This is where that sits against every run on the site.
LEADERBOARD