| 13 Dec 25 | r01        | Urayasu D-RocksUrayasu D-Roc | 27 - 24 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 21 Dec 25 | r02        | Mitsubishi Sagamihara DynMitsubishi Sa | 17 - 10 | Yokohama Canon EaglesYokohama Cano |
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| 28 Dec 25 | r03        | Mitsubishi Sagamihara DynMitsubishi Sa | 3 - 33 | Saitama Wild KnightsSaitama Wild |
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| 10 Jan 26 | r04        | Toshiba Brave Lupus TokyoToshiba Brave | 47 - 22 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 17 Jan 26 | r05        | Shizuoka Blue RevsShizuoka Blue | 47 - 36 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 24 Jan 26 | r06        | Mitsubishi Sagamihara DynMitsubishi Sa | 24 - 33 | Black Rams TokyoBlack Rams To |
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| 08 Feb 26 | r07        | Tokyo SungoliathTokyo Sungoli | - | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 14 Feb 26 | r08        | Mitsubishi Sagamihara DynMitsubishi Sa | 44 - 34 | Mie Honda HeatMie Honda Hea |
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| 21 Feb 26 | r09        | Kubota Spears Funabashi TKubota Spears | 26 - 10 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 01 Mar 26 | r10        | Mitsubishi Sagamihara DynMitsubishi Sa | 29 - 31 | Toyota VerblitzToyota Verbli |
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| 14 Mar 26 | r11        | Kobelco Kobe SteelersKobelco Kobe | 61 - 10 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 21 Mar 26 | r12        | Mitsubishi Sagamihara DynMitsubishi Sa | 35 - 32 | Tokyo SungoliathTokyo Sungoli |
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| 29 Mar 26 | r13        | Black Rams TokyoBlack Rams To | 33 - 7 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 04 Apr 26 | r14        | Mitsubishi Sagamihara DynMitsubishi Sa | 41 - 45 | Shizuoka Blue RevsShizuoka Blue |
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| 18 Apr 26 | r15        | Mitsubishi Sagamihara DynMitsubishi Sa | 26 - 45 | Toshiba Brave Lupus TokyoToshiba Brave |
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| 25 Apr 26 | r16        | Saitama Wild KnightsSaitama Wild | 57 - 19 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 03 May 26 | r17        | Yokohama Canon EaglesYokohama Cano | 31 - 22 | Mitsubishi Sagamihara DynMitsubishi Sa |
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| 10 May 26 | r18        | Mitsubishi Sagamihara DynMitsubishi Sa | 22 - 29 | Urayasu D-RocksUrayasu D-Roc |
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| 23 May 26 | Playoff        | Toyota Industries ShuttleToyota Indust | 14 - 36 | Mitsubishi Sagamihara DynMitsubishi Sa |
| 30 May 26 | Playoff        | Mitsubishi Sagamihara DynMitsubishi Sa | 52 - 28 | Toyota Industries ShuttleToyota Indust |