Italy missed a glorious chance to end a three-year wait for a Six Nations win as Greig Laidlaw's late penalty secured Scotland a hard-fought 29-27 triumph in Rome.
Tommaso Allan – who had represented Scotland at junior level – scored 22 points, including two tries, as the Azzurri looked set to end a 16-match losing run in the tournament.
However, having led 24-12 early in the second half at the Stadio Olimpico, the hosts faded badly down the stretch to suffer yet more disappointment.
Scotland capitalised on Italy's tiredness, tries from Sean Maitland and Stuart Hogg, both converted by Laidlaw, putting them 26-24 ahead as the game moved towards a climax.
Allan slotted over a penalty to briefly put Italy back ahead, only for Laidlaw to respond with a successful kick of his own in the 79th minute that finally settled a see-saw contest in Scotland's favour.
The win means Gregor Townsend's squad finish the campaign with three victories and two defeats, as they did in 2017.
After Allan kicked Italy ahead with a seventh-minute penalty, hooker Fraser Brown had the simple task of picking up Hamish Watson's long pass and falling over the line for Scotland's opening try.
However, Italy responded to the setback by scoring 14 points in the space of seven minutes.
Allan beautifully stepped off his right foot to reach the line himself before setting up Matteo Minozzi with a clever grubber kick that the full-back gleefully gathered under pressure.
Scotland's riposte was prompt and powerful. Benefiting from a rolling maul, captain John Barclay plunged over for a try that Laidlaw successfully converted, making it 17-12 at the break.
Despite seeing a try from Sebastian Negri ruled out for a knock-on, Italy extended their advantage when Jake Polledri's powerful run set up a second score for Allan, who also added the extras to make it a 12-point cushion.
Yet the clock, as well as a back-line reshuffle, worked against Italy, as they succumbed in the closing stages to suffer a fourth Six Nations whitewash in the last five years.
Switched to fly-half after Finn Russell was forced off through injury, Laidlaw provided the pass for Maitland to glide over before Hogg left Negri grasping at thin air to get the bonus-point try.
Allan's boot briefly gave the home fans renewed hope, only for Laidlaw to hold his nerve from a tight angle, his successful kick completing the comeback and condemning Italy captain Sergio Parisse to a 100th Test defeat.
SCOTLAND WIN!!!!!!!!!!!!!!!!!!— J.K. Rowling (@jk_rowling) March 17, 2018
And I need a defibrillator.
Key Opta Stats:
- This was just the third win for Scotland in their last 20 Six Nations games away from home, all three of those victories coming in Rome.
- Italy have now lost their last 17 games in the Championship, the joint longest such run in Five/Six Nations history, level with France who lost 17 from 1911 to 1920.
- Parisse won his 65th cap, drawing level with Brian O’Driscoll as the most capped player in Five/Six Nations history. However, he also became the first player in history to lose 100 Test matches.
|Canberra coach Stuart brands bunker ´waste of time´ after controversial Cronulla loss|
|Son signs five-year Tottenham extension|
|Fleetwood cards fine 65 to share Open lead|
|WATCH: Evra belts out Bocelli in Ronaldo welcome video|
|I´ll always carry Roma in my heart, says Liverpool signing Alisson|
|CAS overturns AC Milan´s Europa League ban|
|McIlroy and Johnson on the move as Woods troubles Carnoustie spectators|
|Caleta-Car race won by Marseille|
|Hurricanes hold off Chiefs to reach final four|
|Bairstow: Unfair to compare England Test and ODI teams|
|Criticism is a weapon of the weak – Dani Alves defends Neymar|
|Thomas drops shot as McIlroy endures testing morning|
|Hazard is Chelsea´s best player and we need him – Fabregas|
|Mercedes & Bottas agree multi-year deal|
|Neymar backs ´genius´ Ronaldo to make Serie A great again|
|Sanchez to face San Jose Earthquakes as Mourinho grows desperate in attack|
|Ibrahimovic to watch England at Wembley – Zlatan will honour Beckham bet|
|Cubs use five-run fifth inning to trump Cardinals|
|Manchester United 1 America 1: Mata salvages draw for Red Devils|
|Steelers´ Super Bowl window getting smaller - Brown|
|Neymar cares about PSG and will stay amid Real Madrid speculation|
|NFL, NFLPA at ´standstill agreement´ over anthem policy|
|Guardiola: It would´ve been a mistake for Jorginho to join City|
|Angels star Ohtani cleared to resume pitching|
|´I don´t give a f***´ – Cousins hits back at critics after Warriors move|
|Merritt leads Barbasol Championship|
|Ruud awakening for Ferrer in Bastad|
|Nibali withdraws from Tour de France with back fracture|
|Fabinho: I´ll try to convince Mbappe to join Liverpool|
|Beating Messi boosted France´s World Cup belief – Lloris|
|Carnoustie saving the worst until last|
|McIlroy´s youthful exuberance could be a bad sign for Carnoustie contenders|
|Saints triumph at second-placed Wigan|
|Anfield atmosphere sweetened Alisson on Liverpool|
|Bouchard reaches Gstaad quarter-finals|
|´What are you waiting for?´ - Alisson reveals Salah text messages|
|´Full package´ Alisson could not be missed - Klopp|
|Alisson to Liverpool: Brazil star becomes most expensive goalkeeper in history|
|Alisson to Liverpool: Brazilian´s stats blitz Mignolet, Karius|
|Liverpool sign Alisson in world-record deal|
|The Open 2018 diary: Spieth´s got ball skills as Finau proves the scratch golfer|
|Woods: Score doesn´t reflect how well I played|
|Can we go to Paris now? - Thomas in a hurry after conquering Alpe d´Huez|
|Thomas: I could have finished stronger|
|Kisner shines at baked Carnoustie as McIlroy, Rahm and Thomas loom|
|Sarri´s mentality made me a better footballer - Jorginho|
|Tax rates played a role in Ronaldo joining Juventus, says LaLiga president|
|Aggressive McIlroy doing it his way, not the fairway|
|I let him have it - Spinazzola ribs Ronaldo over Juve shirt number|
|Thomas makes it back-to-back wins|
|Ramos may remain for Spain but Luis Enrique promising surprises|
|Cazorla still playing through pain after Villarreal appearance|
|Vegas to Carnoustie - a hellish trip for Jhonattan|
|NFL training camp 2018: Five under-the-radar rookies to watch|
|Woods off to a flyer as Thomas charges|
|Sanchez given green light to join Man Utd tour|
|Greipel, Groenewegen and Gaviria latest sprinters to abandon Tour de France|
|Luis Enrique hopeful over Pique as he plots a Spanish evolution|
|I had a brain fart - Spieth disappointed with missed opportunity|
|I´ve sacrificed too much to quit, says injury-plagued Rossi|
|Klopp rejects Henderson´s plea to return early to Liverpool training|
|Open champion Spieth loses ground in scrappy finish|
|Alexis Sanchez hints visa issue sorted as United States trip beckons|
|Kovac an admirer of Pavard, expects James to stay|
|Dzeko happy at Roma and eyeing silverware|
|Eels win basement battle with Bulldogs|
|Kluivert to follow Totti´s example after taking ´big step´ with Roma|
|Kisner hopes to return Claret Jug favour to Spieth|
|FIBA bans 13 players & two coaches over Philippines-Australia brawl|
|Spieth and Rahm in the mix as Kisner sets the target|