AUTHOR PROFILE
Ellis Hartnoll
Head of Testing · at Oddsmark since 2021
Runs the testing programme and owns the scoring rubric. Prices forty markets a month, and signs off every score published on this site.
- 41
- guides published
- 15
- reviews signed off
- 40
- markets priced monthly
- 2021
- at Oddsmark since
BACKGROUND
What Ellis works on
Ellis priced sports markets at two bookmakers before moving to the other side of the desk. He started Oddsmark in 2021 as a monthly spreadsheet of Premier Division margins, sent to about four hundred readers, after finding that every site claiming to rank bookmakers on price was ranking them on commission. He wrote the scoring rubric in 2022 and fixed the current weights in 2024. His work is mostly arithmetic: converting prices into implied probabilities, timing withdrawals to the minute, and publishing the results whether or not they suit the businesses that fund the site.
- Holds no equity in any gambling operator, declared annually. Formerly employed by two bookmakers, neither currently in our guide. Does not accept hospitality, gifts or press trips from operators.
LATEST WORK
Everything Ellis has published recently
Reviews, guides, predictions and articles, newest first. Every piece carries this byline.
THE REST OF THE TEAM
Two other bylines
Dara OkonjoSenior Football AnalystWrites the football previews and the weekly market-movement column, and runs football market testing. Publishes every pick with the reasoning attached — and the record, including the bad months.Football marketsSet-piece and pressing dataMarket movementView profile
Priya NandakumarRegulation CorrespondentCovers licensing, affordability rules and consumer protection. Checks every operator licence against the regulator register, and reads the terms behind every offer we list.LicensingAffordability rulesConsumer protectionView profileNo writer here sees the commercial rates an operator pays, accepts hospitality or gifts, or scores a category they did not measure. If a figure under this byline is wrong, write to ellis@oddsmark.example — we re-test the claim and note any change on the page.