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Seth Lonsway
Projections & Stats

SF

Player Information

TeamSF PosRP Age27
ThrowsL $/Game-13.5 RCL R%0
Razzball 2026 rest of season projections for Seth Lonsway of the San Francisco Giants have him as the #431 ranked player and #1 relief pitcher (RP) worth $99.9 in standard 12 team 5x5 mixed leagues for fantasy baseball.

Jump to: Season Stats || Monthly Stats || Game Log || Player Rater || 2026 Fantasy Outlook
Grey Albright's 2026 Player Summary

Seth Lonsway Stats

GGSQSWLSVHLDIPTBFHERHRBBKERAFIPWHIPBABIPH/9K/9BB/9HR/9K%BB%$
Last 7 Days
Last 30 Days10000002.011520029.001.032.500.55622.59.00.00.018.20.0-10.8
Season10000002.011520029.001.102.500.55622.59.00.00.018.20.0-17.8
ROS Proj11000003.113420224.725.201.650.31811.65.85.80.013.812.3146.9

Seth Lonsway 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)
Prospectonator60003460.0270653035304.551.595.24.50.912.911.2-9.9

Seth Lonsway Projections | Streamonator (Subscribe/login to see pitcher projections)

Seth Lonsway 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".

Seth Lonsway Projections | DFS (Subscribe to see DFS MLB projections)

Seth Lonsway 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".

Seth Lonsway Trade Value | Try our free Fantasy Baseball Trade Analyzer to evaluate trade offers.

Seth Lonsway Game Log | Games Started

OPPDECIPBFPCHRERBBKERAFIPWHIPBABIPHRProj $Act $

Seth Lonsway Game Log | Last 30 Day Relief Appearances

OPPDECIPStartIPBFPCHRERBBKHRERAFIPWHIP$
Aug 29ARI82.011335320209.001.082.50-30.4

Seth Lonsway Stats | Season

Seth Lonsway stats and 5x5 fantasy value from 2013-2026.
PeriodTeamGGSQSWLSVHLDBFIPHERHRBBKERAFIPWHIPBABIPHR/9BB/9K/9$
2013 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2014 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2015 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2016 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2017 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2018 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2019 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2021 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2022 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2023 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2024 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2025 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2026SF1000000112.0520029.001.102.500.5560.00.09.0-17.8

Seth Lonsway Stats | Monthly

Seth Lonsway 2026 fantasy value by month for 5x5 leagues.
GGSQSWLSVHLDIPHERKBBERAFIPWHIPBABIPH/9K/9BB/9HR/9$$/G$
August10000002.052209.001.032.500.5569.99.00.00.0-16.4-37.1

Seth Lonsway Fantasy Baseball | Rest of Season Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN35.0-5.4-0.336.00.0-0.9-0.8465476
MLB 10 Y!35.0-5.4-0.336.00.0-0.9-0.8465476
MLB 12 ESPN99.9-6.2-0.299.90.0-0.9-0.71431
MLB 12 Y!99.9-6.2-0.299.90.0-0.9-0.71431
MLB 14 ESPN-44.8-6.9-0.2-44.00.0-0.9-0.74291201
MLB 14 Y!-44.8-6.9-0.2-44.00.0-0.9-0.74291201
MLB 15 ESPN-24.7-7.4-0.3-23.60.0-1.0-0.84131169
MLB 15 Y!-24.7-7.4-0.3-23.60.0-1.0-0.84131175
MLB 16 ESPN-23.4-7.7-0.3-22.20.0-1.1-0.84091162
MLB 16 Y!-23.4-7.7-0.3-22.20.0-1.1-0.84091141
AL 10
NL 10-99.9-5.20.0-99.90.0-0.3-0.18562
AL 12
NL 12-71.8-5.90.0-72.40.0-0.3-0.1191540

Seth Lonsway Fantasy Baseball | Rest of Season Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 1261.9-6.2-1.265.4-0.1-1.5-1.70.00.0366371
6x6 (QS) Y! 1261.9-6.2-1.265.4-0.1-1.5-1.70.00.0366371
6x6 (Holds) ESPN 12-30.6-4.9-0.51.9-1.9-6.0-1.10.0-24.0386647
6x6 (Holds) Y! 12-30.6-4.9-0.51.9-1.9-6.0-1.10.0-24.0386647
7x7 ESPN 12-31.7-5.1-0.32.4-1.1-3.4-0.70.0-29.6384645
7x7 Y! 12-31.7-5.1-0.32.4-1.1-3.4-0.70.0-29.6384645

Seth Lonsway Fantasy Baseball | Preseason Player Rater

Seth Lonsway Fantasy Baseball | Preseason Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 12
6x6 (Holds) ESPN 12
7x7 ESPN 12

Seth Lonsway 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)
Prospectonator60003460.0270653035304.551.595.24.50.912.911.2-9.9

Seth Lonsway Fantasy Outlook For 2026

Grey Albright Player Summary

Player data for Seth Lonsway maintained by | Updated: