Player Information
| Team | PIT |
Pos | RP |
Age | 29 |
| Throws | R |
$/Game | -6.3 |
RCL R% | 0 |
Razzball 2025 rest of season projections for Isaac Mattson of the Pittsburgh Pirates have him as the
#1265 ranked player and #134 relief pitcher (RP) worth $-99.9 in standard 12 team 5x5 mixed leagues for fantasy baseball.
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Season Stats ||
Monthly Stats ||
Game Log ||
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2024 Fantasy Outlook
| Grey Albright's 2025 Player Summary |
|---|
Isaac Mattson Stats
| G | GS | QS | W | L | SV | HLD | IP | TBF | H | ER | HR | BB | K | ERA | FIP | WHIP | BABIP | H/9 | K/9 | BB/9 | HR/9 | K% | BB% | $ |
|---|
| Last 7 Days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 16 | 3 | 1 | 0 | 4 | 2 | 3.00 | 5.70 | 2.33 | 0.300 | 9.0 | 6.0 | 12.0 | 0.0 | 12.5 | 25.0 | -21.6 |
| Last 30 Days | 13 | 0 | 0 | 0 | 1 | 0 | 5 | 13.7 | 59 | 11 | 4 | 0 | 6 | 10 | 2.63 | 3.10 | 1.24 | 0.262 | 7.2 | 6.6 | 3.9 | 0.0 | 16.9 | 10.2 | -4.7 |
| Season | 39 | 0 | 0 | 3 | 2 | 0 | 9 | 42.0 | 175 | 30 | 11 | 3 | 17 | 44 | 2.36 | 3.33 | 1.12 | 0.252 | 6.4 | 9.4 | 3.6 | 0.6 | 25.1 | 9.7 | -5.5 |
| ROS Proj | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 5.0 | 21 | 4 | 2 | 1 | 2 | 5 | 4.24 | 4.35 | 1.36 | 0.276 | 7.2 | 9.0 | 3.6 | 1.8 | 22.4 | 11.4 | -99.9 |
Isaac Mattson 2025 Projections | Preseason
Isaac Mattson daily MLB projections and fantasy value for probable starts in next 7-10 days. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".
Isaac Mattson daily fantasy baseball projections for DFS sites such as DraftKings and FanDuel. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".
Isaac Mattson Game Log | Games Started
| OPP | DEC | IP | BF | PC | H | R | ER | BB | K | ERA | FIP | WHIP | BABIP | HR | Proj $ | Act $ |
|---|
Isaac Mattson Game Log | Last 30 Day Relief Appearances
| OPP | DEC | IPStart | IP | BF | PC | H | R | ER | BB | K | HR | ERA | FIP | WHIP | $ |
|---|
| Sep 10 | @BAL | BSV | 8 | 1.0 | 6 | 23 | 3 | 1 | 1 | 0 | 0 | 0 | 9.00 | 3.14 | 3.00 | -60.5 |
| Sep 9 | @BAL | | 10 | 1.0 | 5 | 15 | 0 | 0 | 0 | 2 | 1 | 0 | 0.00 | 7.14 | 2.00 | -18.5 |
| Sep 7 | MIL | | 8 | 1.0 | 5 | 20 | 0 | 0 | 0 | 2 | 1 | 0 | 0.00 | 7.14 | 2.00 | -18.5 |
| Sep 3 | LAD | HLD | 8 | 1.0 | 3 | 12 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.14 | 0.00 | 9.2 |
| Sep 2 | LAD | HLD | 7 | 1.0 | 6 | 23 | 3 | 2 | 2 | 0 | 0 | 0 | 18.00 | 3.13 | 3.00 | -81.1 |
| Aug 29 | @BOS | HLD | 8 | 1.0 | 4 | 12 | 1 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.12 | 1.00 | -4.7 |
| Aug 27 | @STL | HLD | 8 | 1.0 | 3 | 8 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.12 | 0.00 | 9.2 |
| Aug 26 | @STL | | 9 | 1.0 | 3 | 20 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.12 | 0.00 | 9.2 |
| Aug 24 | COL | | 8 | 1.0 | 3 | 9 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.11 | 0.00 | 9.2 |
| Aug 20 | TOR | HLD | 8 | 1.0 | 4 | 14 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 4.11 | 0.00 | 9.2 |
| Aug 17 | @CHC | L | 8 | 1.0 | 6 | 19 | 2 | 1 | 1 | 1 | 0 | 0 | 9.00 | 6.12 | 3.00 | -60.5 |
| Aug 15 | @CHC | BSV | 7 | 1.7 | 8 | 34 | 2 | 0 | 0 | 1 | 1 | 0 | 0.00 | 3.71 | 1.80 | 0.6 |
| Aug 13 | @MIL | | 8 | 1.0 | 3 | 14 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.11 | 0.00 | 9.2 |
| Aug 10 | CIN | | 9 | 0.7 | 3 | 13 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 | 0.00 | 1.49 | -19.0 |
| Aug 9 | CIN | | 8 | 1.0 | 3 | 13 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | -0.89 | 0.00 | 16.7 |
| Aug 6 | SF | HLD | 8 | 0.3 | 4 | 13 | 2 | 1 | 1 | 1 | 0 | 0 | 30.00 | 0.00 | 9.09 | -88.0 |
| Aug 3 | @COL | | 8 | 1.0 | 5 | 23 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 | 4.11 | 1.00 | -4.7 |
| Jul 30 | @SF | W | 9 | 2.0 | 8 | 26 | 2 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.09 | 1.00 | 51.7 |
| Jul 28 | @SF | HLD | 7 | 1.0 | 3 | 14 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | -0.91 | 0.00 | 16.7 |
| Jul 25 | ARI | | 7 | 1.0 | 5 | 21 | 2 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.09 | 2.00 | -18.5 |
| Jul 22 | DET | | 7 | 1.0 | 4 | 24 | 1 | 0 | 0 | 0 | 2 | 0 | 0.00 | -0.91 | 1.00 | 2.9 |
| Jul 19 | CHW | | 6 | 0.3 | 5 | 22 | 2 | 2 | 2 | 1 | 1 | 0 | 60.00 | 0.00 | 9.09 | -99.9 |
| Jul 18 | CHW | | 9 | 1.0 | 3 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 3.08 | 0.00 | 1.7 |
| Jul 9 | @KC | L | 8 | 1.0 | 6 | 17 | 2 | 1 | 1 | 1 | 1 | 1 | 9.00 | 17.08 | 3.00 | -52.9 |
| Jul 8 | @KC | | 9 | 0.0 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | | 0.00 | 0.00 | -23.3 |
| Jul 5 | @SEA | | 6 | 1.3 | 4 | 24 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | -1.41 | 0.00 | 31.2 |
| Jul 2 | STL | | 9 | 1.0 | 5 | 19 | 1 | 0 | 0 | 1 | 1 | 0 | 0.00 | 4.09 | 2.00 | -18.5 |
| Jul 1 | STL | W | 8 | 1.0 | 5 | 26 | 0 | 0 | 0 | 2 | 0 | 0 | 0.00 | 9.09 | 2.00 | 1.2 |
| Jun 27 | NYM | HLD | 6 | 1.3 | 5 | 21 | 1 | 0 | 0 | 0 | 3 | 0 | 0.00 | -1.42 | 0.75 | 21.0 |
| Jun 23 | @MIL | HLD | 7 | 1.7 | 6 | 31 | 1 | 0 | 0 | 0 | 3 | 0 | 0.00 | -0.53 | 0.60 | 31.1 |
| Jun 20 | TEX | | 7 | 1.3 | 5 | 16 | 1 | 0 | 0 | 1 | 1 | 0 | 0.00 | 3.82 | 1.50 | -4.2 |
| Jun 19 | @DET | BSV | 7 | 0.7 | 4 | 15 | 2 | 2 | 2 | 0 | 0 | 1 | 25.71 | 0.00 | 2.99 | -89.5 |
| Jun 15 | @CHC | | 7 | 2.0 | 6 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 3.07 | 0.00 | 16.9 |
| Jun 12 | @CHC | | 7 | 1.7 | 6 | 20 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 | 3.68 | 0.60 | 16.3 |
| Jun 10 | MIA | | 8 | 2.0 | 6 | 21 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.07 | 0.00 | 35.6 |
| Jun 7 | PHI | W | 7 | 1.0 | 3 | 13 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1.08 | 0.00 | 36.4 |
| May 25 | MIL | | 6 | 1.3 | 5 | 21 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 | 3.83 | 0.75 | 6.0 |
| May 23 | MIL | | 9 | 0.7 | 2 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 | 0.00 | 2.0 |
| May 22 | MIL | | 6 | 1.0 | 4 | 20 | 1 | 1 | 1 | 0 | 2 | 1 | 9.00 | 12.08 | 1.00 | -17.7 |
Isaac Mattson Stats | Season
Isaac Mattson stats and 5x5 fantasy value from 2013-2025.
| Period | Team | G | GS | QS | W | L | SV | HLD | BF | IP | H | ER | HR | BB | K | ERA | FIP | WHIP | BABIP | HR/9 | BB/9 | K/9 | $ |
|---|
| 2013 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2014 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2015 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2016 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2017 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2018 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2019 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2020 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2021 | BAL | 4 | 0 | 0 | 0 | 0 | 0 | 0 | | 4.0 | 5 | 3 | 0 | 5 | 3 | 6.23 | 5.25 | 2.31 | | 0.0 | 10.4 | 6.2 | -18.9 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | PIT | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 5.0 | 1 | 3 | 0 | 5 | 6 | 5.06 | 4.29 | 1.13 | 0.091 | 0.0 | 8.5 | 10.2 | -15.3 |
| 2025 | PIT | 39 | 0 | 0 | 3 | 2 | 0 | 9 | 175 | 42.0 | 30 | 11 | 3 | 17 | 44 | 2.36 | 3.33 | 1.12 | 0.252 | 0.6 | 3.6 | 9.4 | -5.5 |
Isaac Mattson Stats | Monthly
Isaac Mattson 2025 fantasy value by month for 5x5 leagues.
| G | GS | QS | W | L | SV | HLD | IP | H | ER | K | BB | ERA | FIP | WHIP | BABIP | H/9 | K/9 | BB/9 | HR/9 | $ | $/G$ |
|---|
| May | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 1 | 1 | 4 | 1 | 3.00 | 5.70 | 0.67 | 0.000 | 3.0 | 12.0 | 3.0 | 3.0 | -7.8 | -4.0 |
| June | 8 | 0 | 0 | 1 | 0 | 0 | 2 | 11.7 | 5 | 2 | 12 | 2 | 1.54 | 2.60 | 0.60 | 0.154 | 3.9 | 9.3 | 1.5 | 0.8 | 5.4 | 4.4 |
| July | 11 | 0 | 0 | 2 | 1 | 0 | 1 | 10.7 | 11 | 3 | 14 | 5 | 2.53 | 3.31 | 1.50 | 0.357 | 9.3 | 11.8 | 4.2 | 0.8 | 0.3 | -3.9 |
| August | 12 | 0 | 0 | 0 | 1 | 0 | 4 | 11.7 | 7 | 2 | 11 | 5 | 1.54 | 2.69 | 1.03 | 0.219 | 5.4 | 8.5 | 3.9 | 0.0 | -5.7 | -6.9 |
| September | 5 | 0 | 0 | 0 | 0 | 0 | 2 | 5.0 | 6 | 3 | 3 | 4 | 5.40 | 4.23 | 2.00 | 0.333 | 9.9 | 5.4 | 7.2 | 0.0 | -20.9 | -15.8 |
Isaac Mattson Fantasy Baseball | Rest of Season Player Rater
Isaac Mattson Fantasy Baseball | Rest of Season Player Rater (non-standard 5x5)
Isaac Mattson Fantasy Baseball | Preseason Player Rater
Isaac Mattson Fantasy Baseball | Preseason Player Rater (non-standard 5x5)
Isaac Mattson 2025 Projections | Preseason
Isaac Mattson Fantasy Outlook For 2024
| Grey Albright Player Summary |
|---|
Player data for Isaac Mattson maintained by Rudy Gamble | Updated: 2025-09-14 09:30:20 PM EST
