[Event "WchT U26 01 fin-A"]
[Site "Mexico City"]
[Date "1978.09.04"]
[Round "8"]
[White "Upton, Timothy J"]
[Black "Christiansen, Larry Mark"]
[Result "0-1"]
[BlackElo "2490"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 Nc6 7. O-O Be7 8. Be3 O-O 9. f4 e5 10. Nb3 a5 11. a4 Nb4 12. Bf3 Bd7 13. Rf2 Qc7 14. Rd2 Bc6 15. Kh1 b6 16. Nd5 Bxd5 17. exd5 e4 18. Be2 Qb7 19. c4 Nd7 20. Nd4 Nc5 21. Nb5 Qd7 22. Bd4 Qf5 23. Be3 Qd7 24. Ra3 Rae8 25. Nd4 Bf6 26. Nc6 Ncd3 27. Bxd3 exd3 28. Nxb4 Rxe3 29. Nxd3 Rc8 30. Nc5 Qe7 31. Rxe3 Qxe3 32. Nd3 Re8 33. b3 Bd4 34. h3 h5 35. Rf2 Bc3 36. Rf1 Re4 37. Qf3 Qd4 38. Nc1 Re3 39. Qxh5 Qe4 40. Qh4 Be1 41. Qg4 Rg3 42. Qc8+ Kh7 43. Rg1 f5 44. Kh2 Qxf4 45. Kh1 Qe4 46. Kh2 Bf2 47. Qe6 Qf4 48. Kh1 Re3 49. Ne2 Qg5 0-1