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Data & photo credits

Return Atlas

Attribution for historical records and player photography.

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Extended head to head records also use historical prices from TennisExplorer, including the archive compiled by Ali Mohammadi, Tennis Data, TennisData.app and E. Hallmar’s historical moneyline archive. Each priced meeting identifies its source and the bookmaker where supplied. TennisData.app does not identify the bookmaker or exact capture time. These are recorded historical prices, with opening snapshots labelled where applicable; they are not all verified closing prices. Results without a price remain visible in the meeting record and do not contribute to betting returns.

The 2021 extension uses Valuebetennis’s recorded Pinnacle opening prices under CC BY 4.0. Later seasons use recorded prices from before each match, including closing snapshots where available. The match ledger identifies opening prices separately.

Historical results and prices

Valuebetennis — Tennis results and odds since 2021, used under CC BY 4.0. We filtered and reconciled the records, matched player identities, combined eligible Pinnacle snapshots, and calculated the displayed hypothetical flat-stake returns. These calculations are Il Margine’s presentation of the historical data, not an endorsement by the source.

Supplemental Pinnacle archive prices: Tennis-Data and timestamp-checked Il Margine captures. Match results reconciled with OnCourt. Supplemental snapshots are not assumed to be closing prices.

Player photographs

Portrait sources: ESPN, Wimbledon and Wikimedia Commons. Individual Commons photograph credits and licence links are below.

Reviewed Pinnacle replacements

Specific erroneous archive quotes were replaced with the same bookmaker’s historical match prices checked on TennisExplorer. These are archived Pinnacle snapshots, without a verified closing timestamp.