Wins
47
Indexed tournament wins
Player record
Derwin Mercer
Losses
123
Indexed tournament losses
Matches
170
Decisive results
Win rate
27.6%
Across indexed matches
Peak rating
1,717
Highest rating in the available history.
Biggest upset
Pingfan Xie
2025 JOOLA North American Teams · Nov 28, 2025 · +320 rating
Open →Biggest loss
Centeno, Giovannie
JOOLA North American Teams · Nov 23, 2018 · -506 rating
Open →Most frequent opponent
Vikash Sahu
5 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
25 tournament appearances · synced Aug 7, 2026, 8:42 PM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Mar 21, 2026 | 2026 Washington DC Butterfly March Giant Round RobinOther Sanctioned Tournaments · View matches | 1,600 | 1,594 | -6+0 / -6 | 2W / 2L |
| Nov 28, 2025 | 2025 JOOLA North American TeamsTournament · View matches · USATT readjusted 1,485 → 1,540 | 1,485 | 1,600 | +60+70 / -10 | 3W / 9L |
| Mar 8, 2025 | 2025 WDCTT March Giant Round RobinTournament · View matches | 1,482 | 1,485 | +3+3 / 0 | 3W / 2L |
| Nov 29, 2024 | 2024 JOOLA North American TeamsTournament · View matches | 1,612 | 1,482 | -130 | 3W / 10L |
| Jul 13, 2024 | MDTTC July Open 2024Tournament · View matches | 1,612 | 1,612 | 0+0 / 0 | 0W / 5L |
| Mar 2, 2024 | MDTTC March OpenTournament · View matches | 1,612 | 1,612 | 0+0 / 0 | 0W / 5L |
| Nov 24, 2023 | 2023 JOOLA North American TeamsTournament · View matches | 1,652 | 1,612 | -40+33 / -73 | 5W / 8L |
| Nov 18, 2023 | MDTTC November Open 2023Tournament · View matches | 1,646 | 1,652 | +6+8 / -2 | 1W / 3L |
| Sep 30, 2023 | MDTTC September Open 2023Tournament · View matches | 1,658 | 1,646 | -12+0 / -12 | 0W / 3L |
| Jun 17, 2023 | MDTTC June Open 2023Tournament · View matches | 1,658 | 1,658 | 0+0 / 0 | 2W / 4L |
| Apr 8, 2023 | MDTTC April Open 2023Tournament · View matches | 1,628 | 1,658 | +30+30 / 0 | 1W / 5L |
| Feb 18, 2023 | MDTTC February Open 2023Tournament · View matches | 1,628 | 1,628 | 0+0 / 0 | 0W / 6L |
| Nov 25, 2022 | 2022 JOOLA North American TeamsTournament · View matches | 1,629 | 1,628 | -1+14 / -15 | 5W / 3L |
| Oct 8, 2022 | MDTTC October OpenTournament · View matches | 1,633 | 1,629 | -4+0 / -4 | 0W / 6L |
| Sep 10, 2022 | MDTTC September OpenTournament · View matches | 1,635 | 1,633 | -2+0 / -2 | 0W / 5L |
| Jul 16, 2022 | 2022 WDCTT July Giant Round RobinTournament · View matches | 1,621 | 1,635 | +14+30 / -16 | 4W / 4L |
| Jun 17, 2022 | MDTTC June OpenTournament · View matches | 1,622 | 1,621 | -1+0 / -1 | 0W / 3L |
| May 14, 2022 | 2022 WDCTT May Giant Round RobinTournament · View matches | 1,618 | 1,622 | +4+4 / 0 | 3W / 2L |
| Oct 23, 2021 | 2021 Washington DC Table Tennis Open and Giant Round OpenTournament · View matches | 1,625 | 1,618 | -7+0 / -7 | 1W / 3L |
| Nov 29, 2019 | 2019 JOOLA North American TeamsTournament · View matches | 1,655 | 1,625 | -30+33 / -63 | 3W / 10L |
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