PCA club racing
Search for a racer:

Driver history for John Koster

See predictions of lap times at various tracks

Fastest Lap Times as a solo driver
Track Name Class Current
Class		 Lap Time Class
Record		 Percentage
of Record		 Date Number of
other racers
NJMP Thunderbolt JOHN KOSTER GTC6 GTC6 1:22.236 1:20.794 98.2 2024-08-11 10
Lime Rock JOHN KOSTER SPC SPC 59.205 58.094 98.1 2021-04-24 14
Summit Point JOHN KOSTER GTD1 GTD1 1:18.433 1:16.681 97.8 2022-09-16 5
Lime Rock JOHN KOSTER F F 1:01.277 58.785 95.9 2018-04-21 92
Monticello JOHN KOSTER F F 2:44.631 2:37.764 95.8 2018-07-14 16
Summit Point JOHN KOSTER F F 1:25.615 1:21.906 95.7 2017-09-24 64
Lime Rock JOHN KOSTER GTC6 GTC6 55.723 53.141 95.4 2024-04-19 14
NJMP Thunderbolt JOHN KOSTER SPC SPC 1:32.504 1:28.044 95.2 2021-08-15 20
Lime Rock JOHN KOSTER VO VO 1:01.511 58.388 94.9 2021-04-24 23
Lime Rock JOHN KOSTER GTD1 GTD1 57.541 54.498 94.7 2022-04-22 11
Summit Point JOHN KOSTER GTC6 GTC6 1:16.983 1:12.488 94.2 2023-09-16 12
VIR JOHN KOSTER 911CUP 911CUP 2:16.227 2:08.159 94.1 2023-03-24 19
VIR JOHN KOSTER GTC6 GTC6 1:59.089 1:51.840 93.9 2024-03-22 26
Watkins Glen JOHN KOSTER GTD1 GTD1 2:04.699 1:56.979 93.8 2023-06-17 19
Watkins Glen JOHN KOSTER GTC6 GTC6 1:59.654 1:51.998 93.6 2024-06-14 37
Summit Point JOHN KOSTER E E 1:27.197 1:21.488 93.5 2019-09-22 71
NJMP Thunderbolt JOHN KOSTER GTD1 GTD1 1:29.155 1:23.238 93.4 2022-08-14 7
NJMP Thunderbolt JOHN KOSTER 911CUP 911CUP 1:35.165 1:28.510 93.0 2021-08-15 16
Monticello JOHN KOSTER VO6 VO 2:46.683 2:34.688 92.8 2018-07-13 16
Monticello JOHN KOSTER GT4 GT4 2:46.642 2:33.855 92.3 2017-07-16 6
Watkins Glen JOHN KOSTER SPC SPC 2:15.210 2:03.842 91.6 2021-06-04 33
Summit Point JOHN KOSTER VO VO 1:27.025 1:17.906 89.5 2019-09-21 52


Race Results Summary
Number of Races Class Wins Class Podiums Group Wins Group Podiums
81 13 (16%) 53 (65%) 0 (0%) 0 (0%)


Race Results Details
Date Name Track Race Class Best Lap Overall
Position		 Position
in Class
2024-09-15 JOHN KOSTER Summit Point Yellow - Enduro GTC6 1:17.634 9 / 19 3 / 4
2024-09-14 JOHN KOSTER Summit Point Red - Sprint #2 GTC6 1:18.585 17 / 34 3 / 4
2024-09-14 JOHN KOSTER Summit Point Red - Sprint #1 GTC6 1:17.760 19 / 37 3 / 4
2024-08-11 JOHN KOSTER NJMP Thunderbolt White - Enduro GTC6 1:22.921 7 / 36 2 / 2
2024-08-11 JOHN KOSTER NJMP Thunderbolt Red - Sprint 3 GTC6 1:22.236 9 / 27 2 / 2
2024-08-10 JOHN KOSTER NJMP Thunderbolt Red - Sprint 2 GTC6 1:23.403 10 / 29 2 / 2
2024-08-10 JOHN KOSTER NJMP Thunderbolt Red - Sprint 1 GTC6 1:24.674 9 / 27 2 / 2
2024-06-15 JOHN KOSTER Watkins Glen RED - SPRINT 3 GTC6 2:01.997 23 / 42 4 / 6
2024-06-15 JOHN KOSTER Watkins Glen RED - SPRINT 2 GTC6 2:01.003 25 / 41 5 / 6
2024-06-14 JOHN KOSTER Watkins Glen RED - SPRINT 1 GTC6 2:00.871 17 / 38 2 / 5
2024-04-20 JOHN KOSTER Lime Rock Yellow - Sprint 3 GTC6 56.263 13 / 21 2 / 2
2024-04-20 JOHN KOSTER Lime Rock Yellow - Sprint 2 GTC6 56.902 16 / 24 2 / 2
2024-04-20 JOHN KOSTER Lime Rock Yellow - Sprint 1 GTC6 55.947 15 / 25 2 / 2
2024-03-24 JOHN KOSTER VIR Orange - Enduro GTC6 1:59.162 8 / 13 1 / 1
2024-03-23 JOHN KOSTER VIR Red - Sprint 2 GTC6 2:01.002 15 / 30 1 / 1
2024-03-23 JOHN KOSTER VIR Red - Sprint 1 GTC6 2:00.637 18 / 34 1 / 1
2023-09-16 JOHN KOSTER Summit Point RED - SPRINT 2 GTC6 1:17.849 13 / 28 2 / 3
2023-09-16 JOHN KOSTER Summit Point RED - SPRINT 1 GTC6 1:16.983 12 / 33 2 / 3
2023-08-13 JOHN KOSTER NJMP Thunderbolt White Group - Enduro Race GTC6 1:28.617 10 / 17 2 / 3
2023-08-13 JOHN KOSTER NJMP Thunderbolt Red Group - Race 3 GTC6 1:26.701 5 / 26 2 / 3
2023-08-12 JOHN KOSTER NJMP Thunderbolt Red Group - Race 2 GTC6 1:28.399 11 / 32 2 / 3
2023-08-12 JOHN KOSTER NJMP Thunderbolt Red Group - Race 1 GTC6 1:28.171 12 / 34 2 / 3
2023-06-17 JOHN KOSTER Watkins Glen Red Group - Sprint 2 GTD1 2:04.699 37 / 44 7 / 8
2023-06-17 JOHN KOSTER Watkins Glen Red Group - Sprint 1 GTD1 2:06.974 37 / 45 7 / 8
2023-04-22 JOHN KOSTER Lime Rock Yellow - Lakeville Sprint 3 GTD1 59.928 23 / 25 2 / 2
2023-04-22 JOHN KOSTER Lime Rock Yellow - Lime Rock Sprint 2 GTD1 59.299 22 / 26 2 / 2
2023-04-22 JOHN KOSTER Lime Rock Yellow - Connecticut Valley Sprint 1 GTD1 58.317 19 / 26 2 / 2
2022-09-18 JOHN KOSTER Summit Point Yellow - Enduro GTD1 1:19.116 5 / 51 1 / 1
2022-09-17 JOHN KOSTER Summit Point Red - Sprint Race 2 GTD1 1:18.783 4 / 29 1 / 1
2022-09-17 JOHN KOSTER Summit Point Red - Sprint Race 1 GTD1 1:18.729 6 / 27 1 / 1
2022-08-14 JOHN KOSTER NJMP Thunderbolt White - Enduro GTD1 1:30.965 12 / 21 2 / 2
2022-08-14 JOHN KOSTER NJMP Thunderbolt Red - Sprint 3 GTD1 1:29.155 14 / 26 2 / 2
2022-08-13 JOHN KOSTER NJMP Thunderbolt Red - Sprint 2 GTD1 1:30.366 18 / 28 2 / 2
2022-08-13 JOHN KOSTER NJMP Thunderbolt Red - Sprint 1 GTD1 1:30.150 26 / 38 2 / 2
2022-04-23 JOHN KOSTER Lime Rock White - Lakeville Sprint GTD1 59.191 13 / 13 1 / 1
2022-04-23 JOHN KOSTER Lime Rock White - Lime Rock Sprint GTD1 58.352 14 / 16 1 / 1
2022-04-23 JOHN KOSTER Lime Rock White - Connecticut Valley Sprint GTD1 57.931 15 / 16 1 / 1
2021-08-15 JOHN KOSTER NJMP Thunderbolt Yellow - Race 3 SPC 1:33.713 17 / 26 3 / 3
2021-08-15 JOHN KOSTER NJMP Thunderbolt Orange - Enduro Race SPC 1:32.504 29 / 38 2 / 2
2021-08-15 JOHN KOSTER NJMP Thunderbolt Blue - Race 3 911CUP 1:35.165 17 / 31 5 / 8
2021-08-14 JOHN KOSTER NJMP Thunderbolt Yellow - Race 2 SPC 2:38.491 DNF DNF
2021-08-14 JOHN KOSTER NJMP Thunderbolt Yellow - Race 1 SPC 1:34.286 12 / 33 3 / 3
2021-08-14 JOHN KOSTER NJMP Thunderbolt Blue - Race 2 911CUP 1:36.196 31 / 34 7 / 8
2021-08-14 JOHN KOSTER NJMP Thunderbolt Blue - Race 1 911CUP 1:35.934 19 / 34 7 / 9
2021-04-24 JOHN KOSTER Lime Rock Vintage - Lime Rock Sprint VO 1:01.832 10 / 16 5 / 9
2021-04-24 JOHN KOSTER Lime Rock Vintage - Connecticut Valley Sprint VO 1:01.511 9 / 18 4 / 10
2021-04-24 JOHN KOSTER Lime Rock Green - Lime Rock Sprint SPC 1:00.345 DNF DNF
2021-04-24 JOHN KOSTER Lime Rock Green - Connecticut Valley Sprint SPC 59.205 20 / 39 7 / 7
2021-04-24 JOHN KOSTER Lime Rock Vintage - Lakeville Sprint VO 1:02.047 9 / 16 5 / 10
2020-08-16 JOHN KOSTER NJMP Thunderbolt Yellow Race Group - Sprint Race 3 SPC 1:54.107 8 / 11 1 / 1
2020-08-15 JOHN KOSTER NJMP Thunderbolt Yellow Race Group - Sprint Race 2 SPC 1:34.297 16 / 24 1 / 3
2020-08-15 JOHN KOSTER NJMP Thunderbolt Yellow Race Group - Sprint Race 1 SPC 1:34.775 17 / 26 3 / 3
2019-09-22 JOHN KOSTER Summit Point Orange - Enduro E 1:27.197 33 / 43 3 / 4
2019-09-21 JOHN KOSTER Summit Point Vintage - Sprint 2 VO 1:29.381 18 / 33 10 / 16
2019-09-21 JOHN KOSTER Summit Point Vintage - Sprint 1 VO 1:27.025 17 / 35 9 / 17
2019-09-21 JOHN KOSTER Summit Point Blue - Sprint 2 F 1:25.970 23 / 34 4 / 4
2019-09-21 JOHN KOSTER Summit Point Blue - Sprint 1 F 1:25.969 22 / 35 4 / 4
2019-04-27 JOHN KOSTER Lime Rock Vintage - Sprint Race 3 VO 1:02.836 7 / 20 5 / 14
2019-04-27 JOHN KOSTER Lime Rock Vintage - Sprint Race 2 VO 1:11.313 6 / 19 5 / 13
2019-04-27 JOHN KOSTER Lime Rock Vintage - Sprint Race 1 VO 1:15.388 5 / 20 5 / 14
2019-04-27 JOHN KOSTER Lime Rock 2. Green - Sprint Race 3 F 1:01.482 18 / 27 4 / 8
2019-04-27 JOHN KOSTER Lime Rock 2. Green - Sprint Race 2 F 1:09.005 15 / 25 3 / 7
2019-04-27 JOHN KOSTER Lime Rock 2. Green - Sprint Race 1 F 1:12.039 DNF DNF
2018-07-15 JOHN KOSTER Monticello Vintage - Sprint 3 VO6 2:47.171 4 / 15 1 / 7
2018-07-15 JOHN KOSTER Monticello 1. Red-White Enduro - Enduro F 2:47.316 DNF DNF
2018-07-14 JOHN KOSTER Monticello Vintage - Sprint 2 VO6 2:48.816 7 / 17 3 / 9
2018-07-14 JOHN KOSTER Monticello Vintage - Sprint 1 VO6 2:47.583 6 / 18 2 / 8
2018-07-14 JOHN KOSTER Monticello 1. White Sprint - Sprint 2 F 2:46.092 8 / 31 2 / 5
2018-07-14 JOHN KOSTER Monticello 1. White Sprint - Sprint 1 F 2:44.631 12 / 32 3 / 5
2018-04-21 JOHN KOSTER Lime Rock Vintage - Lime Rock Sprint VO 6 1:01.906 6 / 13 3 / 5
2018-04-21 JOHN KOSTER Lime Rock Vintage - Connecticut Valley Sprint VO 6 1:02.736 7 / 14 3 / 6
2018-04-21 JOHN KOSTER Lime Rock 2. Yellow - Lime Rock Sprint F 1:01.277 8 / 21 2 / 9
2018-04-21 JOHN KOSTER Lime Rock 2. Yellow - Connecticut Valley Sprint F 1:01.448 11 / 23 2 / 9
2017-09-24 JOHN KOSTER Summit Point 4. Yellow Enduro - Enduro F 1:25.615 20 / 27 2 / 3
2017-09-23 JOHN KOSTER Summit Point 2. Blue Sprint - Sprint 2 F 1:27.223 19 / 31 3 / 7
2017-09-23 JOHN KOSTER Summit Point 2. Blue Sprint - Sprint 1 F 1:26.093 24 / 31 5 / 7
2017-07-16 JOHN KOSTER Monticello 1. Red/White Enduro - Enduro (90min) GT4 2:46.642 19 / 40 1 / 1
2017-07-15 JOHN KOSTER Monticello 1. White Sprint - Sprint Race 1 F 2:46.538 DQ DQ
2017-07-15 JOHN KOSTER Monticello 1. White Sprint - Sprint Race 2 F 2:48.373 DQ DQ
2017-04-22 JOHN KOSTER Lime Rock Green Race Group - Sprint Race 2 F 1:02.407 10 / 22 8 / 13
2017-04-22 JOHN KOSTER Lime Rock Green Race Group - Sprint Race 1 F 1:14.301 DQ DQ