JA

JackOnTheBooks

@jackonthebooks3
Moneyline grinder · 78%
Tracked since Jul 2026·252 followers
Season
Net profit
+11.0u
ROI
+3.7%
Last 10
Record
175-159-2
Picks
336
Win rate
52%
Streak
W1
Biggest win
+4.1u3-leg parlay
View on X
Market mix
Moneyline78%
Total7%
Game prop6%
Spread5%
Player prop4%
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Pick history

Jul 31
+1.0u
CWS @ TBNick Martinez over 17.5 outs recorded +100
Line 17.5+1001u
Jul 31
-1.0u
WSH @ ATLNationals ML +106
+1061u
Jul 31
-1.5u
CWS @ TBRays F5 ML -130
-1301.5u
Jul 31
-1.5u
NYY @ CHCCubs ML -150
-1501.5u
Jul 30
-1.0u
PIT @ CINPirates ML -113
-1131u
Jul 30
+0.00u
NYY @ CWSWhite Sox F5 ML -122
-1221.2u
Jul 30
+1.0u
BOS @ ATHRed Sox ML -160
-1601.6u
Jul 29
+1.2u
AZ @ PITDiamondbacks ML +122
+1221u
Jul 29
+1.1u
KC @ MINRoyals / Twins NRFI -106
-1061.2u
Jul 29
-2.0u
BAL @ DETTigers ML -163
-1632u
Jul 28
+0.94u
PHI @ MIAMarlins ML -106
-1061u
Jul 28
-1.0u
AZ @ PITPirates ML -106
-1061u
Jul 28
-1.2u
CLE @ CINReds game 1 F5 -.5 -0.5 -116
Line -0.5-1161.2u
Jul 27
+1.1u
BAL @ DETOrioles ML +108
+1081u
Jul 27
-1.5u
AZ @ PITPirates/Diamondbacks over 8.5 -140
Line 8.5-1401.5u
Jul 27
-1.8u
PHI @ MIAPhillies ML -175
-1751.75u
Jul 26
-1.0u
CLE @ TBGuardians ML +113
+1131u
Showing 25 of 341

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Frequently asked

Is JackOnTheBooks (@jackonthebooks3) a profitable MLB capper?

Yes, on tracked picks. Across 336 graded MLB picks since July 2026, JackOnTheBooks (@jackonthebooks3) is 175-159-2 for +11.0u units of profit (+3.7% ROI, 52% win rate) at the odds and stakes they posted. Past performance does not guarantee future results.

What is JackOnTheBooks (@jackonthebooks3)'s record on TailSlips?

JackOnTheBooks (@jackonthebooks3)'s lifetime record on TailSlips is 175-159-2 (52% win rate) across 336 graded MLB picks, tracked since July 2026. The record reflects every public pick they posted that met TailSlips's grading criteria, win or lose.

What is JackOnTheBooks (@jackonthebooks3)'s ROI on tracked MLB picks?

JackOnTheBooks (@jackonthebooks3)'s lifetime ROI on tracked MLB picks is +3.7%, equivalent to +11.0u units of profit on 336 graded picks. ROI is calculated against the units actually staked at the odds posted at tweet time, not against an idealized flat-stake model.

How are JackOnTheBooks (@jackonthebooks3)'s picks graded?

Every public MLB pick JackOnTheBooks (@jackonthebooks3) posts on Twitter is captured at tweet time, locked at the odds and unit stake they posted, and graded against the actual final outcome of the game. Picks behind paywalls, edited or deleted before game start, or tied to postponed games are not graded as wins or losses. Every tracked account on TailSlips is graded by the same rules.

When did TailSlips start tracking JackOnTheBooks (@jackonthebooks3)?

TailSlips has tracked JackOnTheBooks (@jackonthebooks3) since July 2026. Every public pick posted since then is in the graded record on their profile.

Should I tail JackOnTheBooks (@jackonthebooks3)?

TailSlips does not give betting advice. We track and grade public picks so you can decide based on a verified record instead of a claimed one. JackOnTheBooks (@jackonthebooks3)'s full graded history is on their profile page, including the picks they did not win. Use it to inform your own decisions and bet responsibly.

How this record is calculated

This page reflects every publicly posted pick from @jackonthebooks3 that declared a side, line where applicable, odds taken, and unit stake. Picks without those details are not gradeable and are not shown. Moneylines without posted odds are graded at the Pinnacle price from when they posted; spreads and totals default to -110. Player props without odds count toward win rate but not units profit.

Full rules at methodology. If you're @jackonthebooks3 and you spot a genuine misattribution, email corrections@tailslips.com.